Baltimore-Columbia-Towson, MD

162 Medicare-certified surgical centers. 121 report quality measures, 87 have patient-survey scores.

Specialty 162 centers

Center	City	Specialties	Ownership	ORs	Hospital visits after surgery
Johns Hopkins Surgery Center Series	LUTHERVILLE	EndoscopyOB/GYN surgeryOrthopedic surgery +3	Proprietary	9	As expected Colonoscopy
Johns Hopkins Surgery Centers Series	NOTTINGHAM	EndoscopyOB/GYN surgeryOrthopedic surgery +4	Proprietary	3	As expected Colonoscopy
MAPLE LAWN SURGERY CENTER, LLC	FULTON	Foot surgeryOrthopedic surgeryPain management +1	Proprietary	1	As expected Colonoscopy
SURGCENTER OF TOWSON	TOWSON	Foot surgeryOB/GYN surgeryOrthopedic surgery +3	Proprietary	4	As expected Orthopedic
UNIVERSITY OF MARYLAND SURGERY CENTER	COLUMBIA	Foot surgeryOB/GYN surgeryOphthalmology +3	Proprietary	3	As expected Orthopedic
UROLOGICAL INSTITUTE OF MARYLAND	TIMONIUM	OtolaryngologyPain management	Proprietary	1	As expected Urology
AAMC SURGERY CENTER - ANNAPOLIS	ANNAPOLIS	OB/GYN surgeryOrthopedic surgeryPain management	Proprietary	2	As expected Orthopedic
AAMC SURGERY CENTER - PASADENA	PASADENA	OB/GYN surgeryOrthopedic surgeryPain management +1	Proprietary	2	As expected Orthopedic
BEL AIR AMBULATORY SURGICAL CENTER	FOREST HILL	Other surgery	Proprietary	2	As expected Urology
DULANEY EYE INSTITUTE	TOWSON	Ophthalmology	Proprietary	4	As expected General surgery
ENDOCENTRE AT QUARTERFIELD STATION	GLEN BURNIE	Endoscopy	Proprietary	3	As expected Colonoscopy
ENDOCENTRE OF BALTIMORE	BALTIMORE	Endoscopy	Proprietary	4	As expected Colonoscopy
GREENSPRING SURGERY CENTER, LLC	BALTIMORE	Orthopedic surgery	Proprietary	3	As expected Orthopedic
LUTHERVILLE SURGERY CENTER	LUTHERVILLE	OB/GYN surgeryOphthalmologyOtolaryngology +1	Non-Profit	3	no case volume reported
MARYLAND SPECIALTY SURGERY CENTER	LINTHICUM	Foot surgeryOB/GYN surgeryOrthopedic surgery +2	Proprietary	3	As expected Orthopedic
MEDSTAR SURGERY CENTER AT TIMONIUM	TIMONIUM	Orthopedic surgery	Proprietary	2	As expected Orthopedic
RUXTON SURGICENTER	BALTIMORE	Orthopedic surgery	Proprietary	2	As expected Orthopedic
SURGCENTER OF BEL AIR, LLC	BEL AIR	Foot surgeryOrthopedic surgeryOtolaryngology +1	Proprietary	3	As expected Orthopedic
SURGCENTER OF GLEN BURNIE, LLC	GLEN BURNIE	Foot surgeryOrthopedic surgeryOtolaryngology +1	Proprietary	3	As expected Orthopedic
TIMONIUM SURGERY CENTER, LLC	TIMONIUM	Foot surgeryOB/GYN surgeryOphthalmology +4	Proprietary	2	As expected Orthopedic
TOWSON SURGICAL CENTER, LLC	TOWSON	Dental surgeryFoot surgeryOB/GYN surgery +3	Proprietary	2	As expected General surgery
WESTMINSTER SURGERY CENTER, LLC	WESTMINSTER	Foot surgeryOrthopedic surgeryOtolaryngology +1	Proprietary	3	As expected Orthopedic
ANNE ARUNDEL DIGESTIVE CENTER	PASADENA	Endoscopy	Proprietary	2	As expected Colonoscopy
ASC DEVELOPMENT COMPANY, LLC	BEL AIR	Pain management	Proprietary	2	no case volume reported
BALTIMORE EYE SURGICAL CENTER, , LLC	BALTIMORE	Ophthalmology	Proprietary	3	no case volume reported
CARROLL COUNTY EYE SURGERY CENTER, LLC	WESTMINSTER	Ophthalmology	Proprietary	3	no case volume reported
Cascades Endoscopy Center, Llc	COLUMBIA	Endoscopy	Proprietary	3	As expected Colonoscopy
CHESAPEAKE EYE SURGERY	ANNAPOLIS	OphthalmologyOther surgery	Proprietary	4	As expected General surgery
COLUMBIA SURGICAL INSTITUTE	ELKRIDGE	Ophthalmology	Proprietary	3	no case volume reported
GASTROINTESTINAL DIAGNOSTIC CENTER	BALTIMORE	Endoscopy	Proprietary	3	As expected Colonoscopy
HARFORD ENDOSCOPY CENTER	BEL AIR	Endoscopy	Proprietary	3	As expected Colonoscopy
HOWARD COUNTY GASTROINTESTINAL DIAGNOSTIC CTR LLC	COLUMBIA	Endoscopy	Proprietary	1	As expected Colonoscopy
Johns Hopkins Surgery Centers Series	COLUMBIA	EndoscopyPain management	Proprietary	2	As expected Colonoscopy
MARYLAND DIAGNOSTIC & THERAPEUTIC ENDO CENTER	ANNAPOLIS	Endoscopy	Proprietary	3	As expected Colonoscopy
MARYLAND ENDOSCOPY CENTER, LLC	BALTIMORE	Endoscopy	Proprietary	3	As expected Colonoscopy
PINEY ORCHARD SURGERY CENTER L	ODENTON	Plastic surgery	Proprietary	2	no case volume reported
Snowden River Surgery Center, Llc	ELLICOTT CITY	Ophthalmology	Proprietary	3	As expected General surgery
SUMMIT AMBULATORY SURGERY CENTER, LLC	COLUMBIA	Other surgery	Proprietary	1	As expected Urology
SUMMIT AMBULATORY SURGICAL CENTER, LLC	BALTIMORE	Other surgery	Proprietary	0	As expected Urology
SUMMIT AMBULATORY SURGICAL CENTER, LLC	HANOVER	Other surgery	Proprietary	2	As expected Urology
SURGICAL CENTER OF GREATER ANNAPOLIS	ARNOLD	Ophthalmology	Proprietary	2	no case volume reported
ASC DEVELOPMENT COMPANY, LLC	PIKESVILLE	Pain management	Proprietary	1	no case volume reported
ASC DEVELOPMENT COMPANY, LLC	GLEN BURNIE	Pain management	Proprietary	1	no case volume reported
BALTIMORE WASHINGTON EYE CENTER	GLEN BURNIE	Ophthalmology	Proprietary	1	no case volume reported
MID-ATLANTIC SURGERY PAVILION	ABERDEEN	Ophthalmology	Proprietary	1	no case volume reported
NORTHERN BALTIMORE SURGERY CENTER	TOWSON	Ophthalmology	Proprietary	2	no case volume reported
RIVA ROAD SURGICAL CENTER, LLC	ANNAPOLIS	Foot surgeryOphthalmologyOrthopedic surgery +2	Proprietary	3	As expected Orthopedic
SUMMIT AMBULATORY SURGICAL CENTER, LLC	BALTIMORE	Other surgery	Proprietary	3	As expected Urology
SUMMIT AMBULATORY SURGICAL CENTER, LLC	BALTIMORE	Other surgery	Proprietary	3	As expected Urology
SUMMIT AMBULATORY SURGICAL CENTER, LLC	ANNAPOLIS	Pain management	Proprietary	3	As expected Urology
ANNAPOLIS ENT SURGICAL CENTER	ANNAPOLIS	Dental surgeryOtolaryngologyPlastic surgery	Proprietary	4	As expected General surgery
ASC DEVELOPMENT COMPANY, LLC	BALTIMORE	Pain management	Proprietary	2	no case volume reported
ASC DEVELOPMENT COMPANY, LLC	COLUMBIA	Pain management	Proprietary	2	no case volume reported
ENDOSCOPY CENTER OF NORTH BALTIMORE, LLC	TOWSON	Endoscopy	Proprietary	2	As expected Colonoscopy
MARYLAND CENTER FOR DIGESTIVE HEALTH, LLC	ANNAPOLIS	Endoscopy	Proprietary	6	As expected Colonoscopy
SUMMIT AMBULATORY SURGERY CENTER	BEL AIR	Other surgery	Proprietary	2	As expected Urology
SUMMIT AMBULATORY SURGICAL CENTER, LLC	WESTMINSTER	Other surgery	Proprietary	3	As expected Urology
SUMMIT AMBULATORY SURGICAL CENTER, LLC	BALTIMORE	Other surgery	Proprietary	4	As expected Urology
BALTIMORE AMBULATORY CENTER FOR ENDOSCOPY	BALTIMORE	Endoscopy	Proprietary	1	As expected Colonoscopy
CLEARWAY SURGERY CENTER OF ANNAPOLIS	ANNAPOLIS	Pain management	Proprietary	1	no case volume reported
CLEARWAY SURGERY CENTER OF BEL AIR, LLC	BEL AIR	Pain management	Proprietary	1	no case volume reported
CLEARWAY SURGERY CENTER OF OWINGS MILLS	OWINGS MILLS	Pain managementPlastic surgery	Proprietary	1	no case volume reported
CLEARWAY SURGERY CENTER OF WESTMINSTER,LLC	WESTMINSTER	Pain management	Proprietary	11	no case volume reported
CLEARWAY SURGERY CENTER OF WHITE MARSH, LLC	NOTTINGHAM	Pain management	Proprietary	1	no case volume reported
JOHN HOPKINS SURGERY CENTER SERIES	COLUMBIA	not filed	—	—	As expected Orthopedic
MedStar Health Surgery Center at Annapolis	Annapolis	EndoscopyOrthopedic surgeryPain management +1	Proprietary	3	no case volume reported
SOUTH BALTIMORE COUNTY MEDICAL CENTER ASC	HALETHORPE	Foot surgeryOB/GYN surgeryOphthalmology +2	Non-Profit	2	no case volume reported
CLEARWAY SURGERY CENTER OF COLUMBIA	COLUMBIA	Other surgery	Proprietary	1	no case volume reported
CLEARWAY SURGERY CENTERS OF KENT ISLAND	STEVENSVILLE	Pain managementOther surgery	Proprietary	1	no case volume reported
DIALYSIS ACCESS SERVICES, LLC	BALTIMORE	OB/GYN surgeryOther surgery	Proprietary	2	no case volume reported
LUTHERVILLE SURGICENTER, LLC	LUTHERVILLE	Orthopedic surgery	Proprietary	2	As expected Orthopedic
MEDSTAR ENDOSCOPY AT LUTHERVILLE, LLC	LUTHERVILLE	Endoscopy	Proprietary	2	As expected Colonoscopy
SUMMIT AMBULATORY SURGICAL CENTER, LLC	BALTIMORE	Other surgery	Proprietary	0	As expected Urology
Surgcenter Of Northern Baltimore	HUNT VALLEY	Orthopedic surgeryOtolaryngologyPain management +1	Proprietary	3	As expected General surgery
AMERICAN ACCESS CARE OF BALTIMORE ASC, LLC	WHITE MARSH	Other surgery	Proprietary	2	no case volume reported
ANNAPOLIS ENDOSCOPY CENTER, LLC	ANNAPOLIS	Endoscopy	Proprietary	1	As expected Colonoscopy
ANNE ARUNDEL UROLOGICAL SURGERY CENTER, LLC	ANNAPOLIS	Other surgery	Proprietary	1	Better Urology
CLEARWAY SURGERY CENTER OF CATONSVILLE	BALTIMORE	Other surgery	Proprietary	1	no case volume reported
CLEARWAY SURGERY CENTER OF DUNDALK	DUNDALK	Other surgery	Proprietary	1	no case volume reported
KENILWORTH SURGERY CENTER	TOWSON	Other surgery	Proprietary	5	Better General surgery
SUMMIT AMBULATORY SURGICAL CENTER, LLC	OWINGS MILLS	Other surgery	Proprietary	2	As expected Urology
Vsa Surgery Center of Lutherville, Llc	TIMONIUM	Other surgery	Proprietary	1	no case volume reported
INNOVATIVE SURGERY CENTER	HAVRE DE GRACE	Pain management	Proprietary	1	no case volume reported
JOHNS HOPKINS SURGERY CENTERS SERIES	Lutherville	not filed	—	—	no case volume reported
SURGICENTER OF BALTIMORE, LLC	OWINGS MILLS	EndoscopyFoot surgeryOB/GYN surgery +6	Proprietary	5	As expected Colonoscopy
CENTRAL MARYLAND ENDOSCOPY, LLC	ELKRIDGE	Endoscopy	Proprietary	2	As expected Colonoscopy
EndoCentre of Westminster	Westminster	not filed	—	—	As expected Colonoscopy
Kaiser Permanente Lutherville-Timonium Ambulatory surgery center	Timonium	not filed	—	—	no case volume reported
UNIVERSITY OF MARYLAND UROLOGICAL SURGERY CENTER	BALTIMORE	Other surgery	Non-Profit	0	As expected Urology
CLINICAL ASSOCIATES	TOWSON	Other surgery	Proprietary	0	As expected Colonoscopy
ELLICOTT CITY AMBULATORY SURGERY CENTER	ELLICOTT CITY	EndoscopyOB/GYN surgeryOrthopedic surgery +2	Proprietary	6	As expected Colonoscopy
SIMCARE ASC,LLC	MOUNT AIRY	Other surgery	Proprietary	2	no case volume reported
Summit Brachytherapy, LLC	Baltimore	not filed	—	—	no case volume reported
ARUNDEL AMBULATORY SURGERY CENTER	ANNAPOLIS	Dental surgeryFoot surgeryOphthalmology +5	Proprietary	2	As expected General surgery
CARROLL COUNTY ASC/YASH KUMAR	WESTMINSTER	EndoscopyPlastic surgeryOther surgery	Proprietary	2	As expected Colonoscopy
ENDOSCOPY CENTER AT BEL AIR, THE	BEL AIR	EndoscopyPain managementOther surgery	Proprietary	2	As expected Colonoscopy
33RD STREET SURGERY CENTER,THE	BALTIMORE	OtolaryngologyPlastic surgery	Proprietary	3	no case volume reported
ABINGDON SURGICAL CENTER	ABINGDON	Foot surgery	Proprietary	1	no case volume reported
AMBULATORY SURGERY CENTER FOR PELVIC NEURO SCIENCE	LUTHERVILLE	Other surgery	Proprietary	1	As expected Urology
BALTIMORE HARFORD SURGICAL CENTER, LLC	BEL AIR	Other surgery	Proprietary	1	As expected Urology
CROSSROADS PODIATRIC SURGERY CENTER, LLC	OWINGS MILLS	Foot surgery	Proprietary	1	As expected Orthopedic
FACIAL PLASTIC SURGICENTER LTD	BALTIMORE	OtolaryngologyPlastic surgery	Proprietary	1	As expected General surgery
GEORGE THOMAS GRACE SURGERY CE	BALTIMORE	Orthopedic surgeryPlastic surgery	Non-Profit	1	As expected General surgery
MD LASER SURGERY CENTER	COLUMBIA	Other surgery	Proprietary	1	no case volume reported
MOHS AND SKIN SURGERY CENTER, LLC	LUTHERVILLE	Other surgery	Proprietary	0	Better General surgery
PLASTIC SURGERY SPECIALISTS	ANNAPOLIS	Plastic surgery	Proprietary	4	As expected General surgery
PODIATRY ASSOCIATES	COLUMBIA	Other surgery	Proprietary	1	As expected Orthopedic
PODIATRY ASSOCIATES AMBULATORY SURGICAL CENTER	BALTIMORE	Foot surgery	Proprietary	1	As expected Orthopedic
Surgery Center Of Annapolis	ANNAPOLIS	Orthopedic surgeryPlastic surgery	Proprietary	1	no case volume reported
SURGICAL SPECIALTY SUITES, INC.	LUTHERVILLE	Plastic surgery	Proprietary	2	As expected General surgery
BALTIMORE COLUMBIA SURGERY CENTER	ELLICOTT CITY	Plastic surgery	Proprietary	1	As expected General surgery
COSMETIC SURGERY FACILITY, LLC	LUTHERVILLE	Plastic surgery	Proprietary	2	no case volume reported
DOWNTOWN BALTIMORE SURGERY CENTER	BALTIMORE	Endoscopy	Proprietary	1	As expected Colonoscopy
ELKRIDGE ASC, LLC	ELKRIDGE	Pain managementPlastic surgery	Proprietary	2	no case volume reported
ENDOSCOPY CENTER OF ESSEX, LLC	BALTIMORE	Endoscopy	Proprietary	0	no case volume reported
Family Footcare Ambulatory Surgery Center, LLC	BALTIMORE	Foot surgery	Proprietary	1	no case volume reported
HARFORD PODIATRIC SURGERY CENTER, INC	PERRY HALL	Foot surgery	Proprietary	1	no case volume reported
LISA RENFRO SURGERY CENTER, LLC	ANNAPOLIS	Other surgery	Proprietary	4	As expected General surgery
MARYLAND AESTHETIC & RECONSTRUCTIVE ASC	BALTIMORE	OphthalmologyPlastic surgery	Proprietary	1	no case volume reported
PLAZA AMBULATORY SURGICAL CENTER	BALTIMORE	Foot surgery	Proprietary	1	As expected Orthopedic
PODIATRY GROUP OF ANNAPOLIS AMBULATORY SURGERY CEN	ANNAPOLIS	Foot surgery	Proprietary	1	no case volume reported
POOLE ENDOSCOPY CENTER	WESTMINSTER	Other surgery	Proprietary	1	As expected Colonoscopy
WEST ANNAPOLIS SURGERY CENTER, LLC	ANNAPOLIS	Plastic surgery	Proprietary	2	As expected General surgery
9106 PHILADELPHIA ROAD ASC, LLC	BALTIMORE	Pain management	Proprietary	1	no case volume reported
ADVANCED CENTER FOR PLASTIC SURGERY	TIMONIUM	Plastic surgery	Proprietary	1	no case volume reported
AMERICAN ACCESS CARE OF TOWSON ASC, LLC	OWINGS MILLS	Other surgery	Proprietary	2	no case volume reported
ARUNDEL MILLS SURGERY CENTER, INC	HANOVER	Plastic surgery	Proprietary	1	no case volume reported
BEL AIR SURGICAL AND VEIN CENTER, LLC	BEL AIR	Other surgery	Proprietary	2	no case volume reported
BOX HILL SURGERY CENTER, LLC	ABINGDON	Pain management	Proprietary	1	no case volume reported
CHECKERSPOT SURGERY CENTERS, LLC	ODENTON	Other surgery	Proprietary	1	no case volume reported
CHESAPEAKE AMBULATORY SURGERY CENTER, LLC	PASADENA	Foot surgery	Proprietary	2	no case volume reported
CLARKVIEW SURGERY CENTER, LLC	BALTIMORE	Foot surgeryPlastic surgery	Proprietary	4	no case volume reported
CLEARWAY SURGERY CENTER OF ANNAPOLIS	ANNAPOLIS	Pain management	Proprietary	1	no case volume reported
COLUMBIA AESTHETIC SURGERY CENTER, LLC	COLUMBIA	Plastic surgery	Proprietary	1	no case volume reported
Columbia Parkway Surgery Center, LLC	COLUMBIA	Ophthalmology	Proprietary	1	no case volume reported
COMPLETE PAIN SURGERY CENTER OF WHITE MARSH, LLC	WHITE MARSH	Pain management	Proprietary	1	no case volume reported
ELDERSBURG SURGERY CENTER	ELDERSBURG	Foot surgery	Proprietary	1	no case volume reported
EYE SURGERY CENTER OF WHITE MARSH, LLC	BALTIMORE	Ophthalmology	Proprietary	2	no case volume reported
FEMI-CARE SURGERY CENTER, LLC	Lutherville	OB/GYN surgery	Proprietary	2	no case volume reported
GEMINI ASC ELKRIDGE, LLC	ELKRIDGE	Pain management	Proprietary	1	no case volume reported
Global Ambulatory Surgery Centers LLC	PASADENA	Pain management	Proprietary	0	no case volume reported
GYNEMED SURGI CENTER	BALTIMORE	OB/GYN surgery	Proprietary	1	no case volume reported
LASER SURGERY CENTER	SEVERNA PARK	Plastic surgery	Proprietary	1	no case volume reported
MARYLAND PLASTIC SURGERY, LLC	Millersville	Plastic surgery	Proprietary	1	no case volume reported
MARYLAND PODIATRY SURGICAL CENTER, LLC	ELLICOTT CITY	Foot surgery	Proprietary	1	no case volume reported
MARYLAND SPINE AND SPORTS SURGI-CENTER, LLC	CLARKSVILLE	Pain management	Proprietary	2	no case volume reported
METROPOLITAN SPINE	ELLICOTT CITY	Pain management	Proprietary	1	no case volume reported
SGFC SURGERY CENTER	TOWSON	Other surgery	Proprietary	1	no case volume reported
SUMMIT AMBULATORY SURGERY CENTER	HAVRE DE GRACE	Other surgery	Proprietary	1	no case volume reported
SUMMIT AMBULATORY SURGICAL CENTER	FULTON	Other surgery	Proprietary	2	no case volume reported
SURGERY CENTER OF YORK ROAD LLC	LUTHERVILLE	EndoscopyPlastic surgeryOther surgery	Proprietary	2	no case volume reported
Timonium Endoscopy Center, LLC	Lutherville	Other surgery	Proprietary	1	no case volume reported
TOWSON AMBULATORY SURGERY CENTER	BALTIMORE	Foot surgery	Proprietary	1	no case volume reported
ZION AMBULATORY CENTER, LLC	BALTIMORE	Pain management	Proprietary	1	no case volume reported
Advanced Eye Laser and Surgery Center, LLC	SPARKS GLENCOE	not filed	—	—	no case volume reported
Baltimore Surgery Center, LLC	Baltimore	not filed	—	—	no case volume reported
Clearway Surgery Center of Glen Burnie	Glen Burnie	not filed	—	—	no case volume reported
Clearway Surgery Center of Timonium, LLC	LUTHERVILLE TIMONIUM	not filed	—	—	no case volume reported
Clearway Surgery Center of Windsor Mill	Windsor Mill	not filed	—	—	no case volume reported
Howard County Surgery Center, LLC	MARRIOTTSVILLE	not filed	—	—	no case volume reported
PODIATRY ASSOCIATES AMBULATORY SURGICAL CENTER	COCKEYSVILLE	not filed	—	—	no case volume reported
Washington Vascular Specialist of Baltimore	Baltimore	not filed	—	—	no case volume reported

One measure shown per center — the one with reportable case volume. Every center reports on a different mix, which is why the full grid is worth opening.

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Center	Colonoscopy nat 9.9	Orthopedic nat 2.4	Urology nat 5.4	General surgery nat 1	Transfer rate	Rating	Recommend	Surveys
Johns Hopkins Surgery Center Series	9.5 As expected	2.4 As expected	5.1 As expected	0.9 As expected	0.156	97	95	559
Johns Hopkins Surgery Centers Series	10 As expected	2.3 As expected	—	1 As expected	0.201	97	95	564
MAPLE LAWN SURGERY CENTER, LLC	10.1 As expected	2.7 As expected	—	—	0.087	96	95	226
SURGCENTER OF TOWSON	—	2.5 As expected	5.3 As expected	1.1 As expected	0.069	94	95	296
UNIVERSITY OF MARYLAND SURGERY CENTER	—	2.6 As expected	—	—	0.17	98	97	203
UROLOGICAL INSTITUTE OF MARYLAND	—	—	5.8 As expected	—	0.07	96	96	41
AAMC SURGERY CENTER - ANNAPOLIS	—	2.4 As expected	—	—	0.468	98	97	348
AAMC SURGERY CENTER - PASADENA	—	2.5 As expected	—	1 As expected	0.047	95	93	251
BEL AIR AMBULATORY SURGICAL CENTER	—	—	4.2 As expected	—	0	96	90	25
DULANEY EYE INSTITUTE	—	—	—	1 As expected	0.051	96	94	233
ENDOCENTRE AT QUARTERFIELD STATION	10.1 As expected	—	—	—	0.109	97	96	536
ENDOCENTRE OF BALTIMORE	8.4 As expected	—	—	—	0.159	96	95	470
GREENSPRING SURGERY CENTER, LLC	—	2.4 As expected	—	—	0.025	97	95	164
LUTHERVILLE SURGERY CENTER	—	—	—	—	0	97	96	457
MARYLAND SPECIALTY SURGERY CENTER	—	2.2 As expected	—	1 As expected	0.313	97	96	118
MEDSTAR SURGERY CENTER AT TIMONIUM	—	2.8 As expected	—	—	0.073	96	97	331
RUXTON SURGICENTER	—	2 As expected	—	1 As expected	0.067	97	96	346
SURGCENTER OF BEL AIR, LLC	—	2.2 As expected	—	1 As expected	0.079	95	94	169
SURGCENTER OF GLEN BURNIE, LLC	—	2.6 As expected	—	1 As expected	0.12	94	94	249
TIMONIUM SURGERY CENTER, LLC	—	2.4 As expected	—	1 As expected	0.058	94	94	315
TOWSON SURGICAL CENTER, LLC	—	—	—	0.8 As expected	0.171	95	93	256
WESTMINSTER SURGERY CENTER, LLC	—	1.9 As expected	—	—	0.04	97	97	205
ANNE ARUNDEL DIGESTIVE CENTER	9.2 As expected	—	—	—	0.175	94	94	52
ASC DEVELOPMENT COMPANY, LLC	—	—	—	—	0	94	95	173
BALTIMORE EYE SURGICAL CENTER, , LLC	—	—	—	—	0	96	95	181
CARROLL COUNTY EYE SURGERY CENTER, LLC	—	—	—	—	0	96	96	159
Cascades Endoscopy Center, Llc	10 As expected	—	—	—	0.02	94	95	117
CHESAPEAKE EYE SURGERY	—	—	—	0.9 As expected	0.021	95	95	161
COLUMBIA SURGICAL INSTITUTE	—	—	—	—	0.047	96	97	147
GASTROINTESTINAL DIAGNOSTIC CENTER	10.9 As expected	—	—	—	0.089	97	96	539
HARFORD ENDOSCOPY CENTER	8.2 As expected	—	—	—	0.127	98	97	679
HOWARD COUNTY GASTROINTESTINAL DIAGNOSTIC CTR LLC	9.1 As expected	—	—	—	0.126	94	96	208
Johns Hopkins Surgery Centers Series	9.8 As expected	—	—	—	0.117	97	95	420
MARYLAND DIAGNOSTIC & THERAPEUTIC ENDO CENTER	10.5 As expected	—	—	—	0.205	95	96	163
MARYLAND ENDOSCOPY CENTER, LLC	11.4 As expected	—	—	—	0.139	95	94	619
PINEY ORCHARD SURGERY CENTER L	—	—	—	—	0.047	92	87	33
Snowden River Surgery Center, Llc	—	—	—	1.1 As expected	0.027	97	96	227
SUMMIT AMBULATORY SURGERY CENTER, LLC	—	—	4.5 As expected	—	0.042	94	95	214
SUMMIT AMBULATORY SURGICAL CENTER, LLC	—	—	4.9 As expected	—	0.269	95	93	321
SUMMIT AMBULATORY SURGICAL CENTER, LLC	—	—	5.4 As expected	—	0.29	94	93	232
SURGICAL CENTER OF GREATER ANNAPOLIS	—	—	—	—	0.077	98	98	113
ASC DEVELOPMENT COMPANY, LLC	—	—	—	—	0.087	85	81	61
ASC DEVELOPMENT COMPANY, LLC	—	—	—	—	0	93	93	115
BALTIMORE WASHINGTON EYE CENTER	—	—	—	—	0	94	95	115
MID-ATLANTIC SURGERY PAVILION	—	—	—	—	0	97	95	281
NORTHERN BALTIMORE SURGERY CENTER	—	—	—	—	0	94	95	55
RIVA ROAD SURGICAL CENTER, LLC	—	2.2 As expected	—	0.8 As expected	0.073	96	96	229
SUMMIT AMBULATORY SURGICAL CENTER, LLC	—	—	6.2 As expected	—	0.099	93	92	264
SUMMIT AMBULATORY SURGICAL CENTER, LLC	—	—	4.9 As expected	—	0.191	93	90	224
SUMMIT AMBULATORY SURGICAL CENTER, LLC	—	—	5.8 As expected	—	0.245	94	93	222
ANNAPOLIS ENT SURGICAL CENTER	—	—	—	0.9 As expected	0.139	98	98	148
ASC DEVELOPMENT COMPANY, LLC	—	—	—	—	0	88	84	30
ASC DEVELOPMENT COMPANY, LLC	—	—	—	—	0	94	93	143
ENDOSCOPY CENTER OF NORTH BALTIMORE, LLC	9.8 As expected	—	—	—	0.027	95	93	160
MARYLAND CENTER FOR DIGESTIVE HEALTH, LLC	8.9 As expected	—	—	—	0.073	93	94	388
SUMMIT AMBULATORY SURGERY CENTER	—	—	5.8 As expected	—	0.18	95	95	214
SUMMIT AMBULATORY SURGICAL CENTER, LLC	—	—	4.5 As expected	—	0.054	97	97	267
SUMMIT AMBULATORY SURGICAL CENTER, LLC	—	—	4.8 As expected	—	0.212	94	93	245
BALTIMORE AMBULATORY CENTER FOR ENDOSCOPY	9.2 As expected	—	—	—	0.071	96	97	264
CLEARWAY SURGERY CENTER OF ANNAPOLIS	—	—	—	—	0.022	92	89	88
CLEARWAY SURGERY CENTER OF BEL AIR, LLC	—	—	—	—	0.047	85	84	59
CLEARWAY SURGERY CENTER OF OWINGS MILLS	—	—	—	—	0.07	87	83	35
CLEARWAY SURGERY CENTER OF WESTMINSTER,LLC	—	—	—	—	0.032	96	95	71
CLEARWAY SURGERY CENTER OF WHITE MARSH, LLC	—	—	—	—	0.031	88	88	54
JOHN HOPKINS SURGERY CENTER SERIES	—	2.1 As expected	—	0.9 As expected	0	96	95	605
MedStar Health Surgery Center at Annapolis	—	—	—	—	—	96	96	247
SOUTH BALTIMORE COUNTY MEDICAL CENTER ASC	—	—	—	—	—	97	95	686
CLEARWAY SURGERY CENTER OF COLUMBIA	—	—	—	—	0.121	87	88	47
CLEARWAY SURGERY CENTERS OF KENT ISLAND	—	—	—	—	—	92	93	89
DIALYSIS ACCESS SERVICES, LLC	—	—	—	—	0.564	95	92	91
LUTHERVILLE SURGICENTER, LLC	—	1.6 As expected	—	1 As expected	—	96	96	44
MEDSTAR ENDOSCOPY AT LUTHERVILLE, LLC	10.2 As expected	—	—	—	—	94	95	111
SUMMIT AMBULATORY SURGICAL CENTER, LLC	—	—	5.2 As expected	—	—	94	95	89
Surgcenter Of Northern Baltimore	—	—	—	1 As expected	—	97	95	198
AMERICAN ACCESS CARE OF BALTIMORE ASC, LLC	—	—	—	—	0.158	93	90	128
ANNAPOLIS ENDOSCOPY CENTER, LLC	11.3 As expected	—	—	—	—	97	96	125
ANNE ARUNDEL UROLOGICAL SURGERY CENTER, LLC	—	—	4.2 Better	—	—	95	94	96
CLEARWAY SURGERY CENTER OF CATONSVILLE	—	—	—	—	—	91	82	29
CLEARWAY SURGERY CENTER OF DUNDALK	—	—	—	—	0.044	95	94	73
KENILWORTH SURGERY CENTER	—	—	—	0.6 Better	—	97	97	82
SUMMIT AMBULATORY SURGICAL CENTER, LLC	—	—	4 As expected	—	—	94	95	147
Vsa Surgery Center of Lutherville, Llc	—	—	—	—	0.325	97	97	42
INNOVATIVE SURGERY CENTER	—	—	—	—	—	95	94	99
JOHNS HOPKINS SURGERY CENTERS SERIES	—	—	—	—	0	98	97	195
SURGICENTER OF BALTIMORE, LLC	10.1 As expected	2.7 As expected	—	1 As expected	0.179	—	—	—
CENTRAL MARYLAND ENDOSCOPY, LLC	8.9 As expected	—	—	—	0	—	—	—
EndoCentre of Westminster	9.7 As expected	—	—	—	—	97	96	662
Kaiser Permanente Lutherville-Timonium Ambulatory surgery center	—	—	—	—	—	97	95	487
UNIVERSITY OF MARYLAND UROLOGICAL SURGERY CENTER	—	—	6.6 As expected	—	0	—	—	—
CLINICAL ASSOCIATES	9.2 As expected	—	—	—	0.149	—	—	—
ELLICOTT CITY AMBULATORY SURGERY CENTER	10.1 As expected	2.4 As expected	—	1 As expected	0.196	—	—	—
SIMCARE ASC,LLC	—	—	—	—	0	—	—	—
Summit Brachytherapy, LLC	—	—	—	—	—	93	90	51
ARUNDEL AMBULATORY SURGERY CENTER	—	—	—	1.1 As expected	0.129	—	—	—
CARROLL COUNTY ASC/YASH KUMAR	9.7 As expected	—	—	0.9 As expected	—	—	—	—
ENDOSCOPY CENTER AT BEL AIR, THE	10.7 As expected	—	—	1.1 As expected	—	—	—	—
33RD STREET SURGERY CENTER,THE	—	—	—	—	—	—	—	—
ABINGDON SURGICAL CENTER	—	—	—	—	—	—	—	—
AMBULATORY SURGERY CENTER FOR PELVIC NEURO SCIENCE	—	—	4.8 As expected	—	—	—	—	—
BALTIMORE HARFORD SURGICAL CENTER, LLC	—	—	6.1 As expected	—	0.352	—	—	—
CROSSROADS PODIATRIC SURGERY CENTER, LLC	—	2.4 As expected	—	—	—	—	—	—
FACIAL PLASTIC SURGICENTER LTD	—	—	—	1 As expected	—	—	—	—
GEORGE THOMAS GRACE SURGERY CE	—	—	—	1 As expected	—	—	—	—
MD LASER SURGERY CENTER	—	—	—	—	—	—	—	—
MOHS AND SKIN SURGERY CENTER, LLC	—	—	—	0.6 Better	—	—	—	—
PLASTIC SURGERY SPECIALISTS	—	—	—	0.9 As expected	—	—	—	—
PODIATRY ASSOCIATES	—	2.2 As expected	—	—	—	—	—	—
PODIATRY ASSOCIATES AMBULATORY SURGICAL CENTER	—	2.2 As expected	—	—	—	—	—	—
Surgery Center Of Annapolis	—	—	—	—	—	—	—	—
SURGICAL SPECIALTY SUITES, INC.	—	—	—	1 As expected	—	—	—	—
BALTIMORE COLUMBIA SURGERY CENTER	—	—	—	0.9 As expected	—	—	—	—
COSMETIC SURGERY FACILITY, LLC	—	—	—	—	—	—	—	—
DOWNTOWN BALTIMORE SURGERY CENTER	9.7 As expected	—	—	—	—	—	—	—
ELKRIDGE ASC, LLC	—	—	—	—	—	—	—	—
ENDOSCOPY CENTER OF ESSEX, LLC	—	—	—	—	—	—	—	—
Family Footcare Ambulatory Surgery Center, LLC	—	—	—	—	—	—	—	—
HARFORD PODIATRIC SURGERY CENTER, INC	—	—	—	—	—	—	—	—
LISA RENFRO SURGERY CENTER, LLC	—	—	—	1.1 As expected	—	—	—	—
MARYLAND AESTHETIC & RECONSTRUCTIVE ASC	—	—	—	—	—	—	—	—
PLAZA AMBULATORY SURGICAL CENTER	—	2.3 As expected	—	—	—	—	—	—
PODIATRY GROUP OF ANNAPOLIS AMBULATORY SURGERY CEN	—	—	—	—	—	—	—	—
POOLE ENDOSCOPY CENTER	10 As expected	—	—	—	—	—	—	—
WEST ANNAPOLIS SURGERY CENTER, LLC	—	—	—	0.9 As expected	—	—	—	—
9106 PHILADELPHIA ROAD ASC, LLC	—	—	—	—	—	—	—	—
ADVANCED CENTER FOR PLASTIC SURGERY	—	—	—	—	—	—	—	—
AMERICAN ACCESS CARE OF TOWSON ASC, LLC	—	—	—	—	—	—	—	—
ARUNDEL MILLS SURGERY CENTER, INC	—	—	—	—	—	—	—	—
BEL AIR SURGICAL AND VEIN CENTER, LLC	—	—	—	—	—	—	—	—
BOX HILL SURGERY CENTER, LLC	—	—	—	—	—	—	—	—
CHECKERSPOT SURGERY CENTERS, LLC	—	—	—	—	—	—	—	—
CHESAPEAKE AMBULATORY SURGERY CENTER, LLC	—	—	—	—	—	—	—	—
CLARKVIEW SURGERY CENTER, LLC	—	—	—	—	—	—	—	—
CLEARWAY SURGERY CENTER OF ANNAPOLIS	—	—	—	—	—	—	—	—
COLUMBIA AESTHETIC SURGERY CENTER, LLC	—	—	—	—	—	—	—	—
Columbia Parkway Surgery Center, LLC	—	—	—	—	—	—	—	—
COMPLETE PAIN SURGERY CENTER OF WHITE MARSH, LLC	—	—	—	—	—	—	—	—
ELDERSBURG SURGERY CENTER	—	—	—	—	—	—	—	—
EYE SURGERY CENTER OF WHITE MARSH, LLC	—	—	—	—	—	—	—	—
FEMI-CARE SURGERY CENTER, LLC	—	—	—	—	—	—	—	—
GEMINI ASC ELKRIDGE, LLC	—	—	—	—	—	—	—	—
Global Ambulatory Surgery Centers LLC	—	—	—	—	—	—	—	—
GYNEMED SURGI CENTER	—	—	—	—	—	—	—	—
LASER SURGERY CENTER	—	—	—	—	—	—	—	—
MARYLAND PLASTIC SURGERY, LLC	—	—	—	—	—	—	—	—
MARYLAND PODIATRY SURGICAL CENTER, LLC	—	—	—	—	—	—	—	—
MARYLAND SPINE AND SPORTS SURGI-CENTER, LLC	—	—	—	—	—	—	—	—
METROPOLITAN SPINE	—	—	—	—	—	—	—	—
SGFC SURGERY CENTER	—	—	—	—	—	—	—	—
SUMMIT AMBULATORY SURGERY CENTER	—	—	—	—	—	—	—	—
SUMMIT AMBULATORY SURGICAL CENTER	—	—	—	—	—	—	—	—
SURGERY CENTER OF YORK ROAD LLC	—	—	—	—	—	—	—	—
Timonium Endoscopy Center, LLC	—	—	—	—	—	—	—	—
TOWSON AMBULATORY SURGERY CENTER	—	—	—	—	—	—	—	—
ZION AMBULATORY CENTER, LLC	—	—	—	—	—	—	—	—
Advanced Eye Laser and Surgery Center, LLC	—	—	—	—	—	—	—	—
Baltimore Surgery Center, LLC	—	—	—	—	—	—	—	—
Clearway Surgery Center of Glen Burnie	—	—	—	—	—	—	—	—
Clearway Surgery Center of Timonium, LLC	—	—	—	—	—	—	—	—
Clearway Surgery Center of Windsor Mill	—	—	—	—	—	—	—	—
Howard County Surgery Center, LLC	—	—	—	—	—	—	—	—
PODIATRY ASSOCIATES AMBULATORY SURGICAL CENTER	—	—	—	—	—	—	—	—
Washington Vascular Specialist of Baltimore	—	—	—	—	—	—	—	—

Rates are per-100 risk-standardized 7-day hospital visits; "nat" is the national rate for that measure. Rating and Recommend are OAS CAHPS linear mean scores (0–100). A dash means CMS did not report a value — usually too few cases, which is not a bad score.

Sources: CMS Provider of Services file (iQIES, 2026 Q2) for the facility list, specialties and room counts; CMS ASCQR facility-level quality measures; CMS OAS CAHPS patient survey. Metro grouping is by CBSA code 12580; the area name is the U.S. Census Bureau's own title for it, not one we invented.