Riverside-San Bernardino-Ontario, CA

99 Medicare-certified surgical centers. 62 report quality measures, 36 have patient-survey scores.

Specialty 99 centers

Center	City	Specialties	Ownership	ORs	Hospital visits after surgery
EL MIRADOR SURGERY CENTER	PALM SPRINGS	EndoscopyFoot surgeryOB/GYN surgery +5	Proprietary	6	As expected Colonoscopy
LOMA LINDA SURGICAL INSTITUTE, LLC	LOMA LINDA	EndoscopyOB/GYN surgeryOphthalmology +5	Proprietary	7	As expected Orthopedic
GOLDEN TRIANGLE SURGICENTER	MURRIETA	EndoscopyOB/GYN surgeryOrthopedic surgery +2	Proprietary	4	As expected Colonoscopy
PHYSICIAN'S SURGERY CENTER	VICTORVILLE	Foot surgeryOB/GYN surgeryOphthalmology +4	Proprietary	2	As expected Colonoscopy
SAN ANTONIO AMBULATORY SURGICAL CENTER	UPLAND	EndoscopyFoot surgeryOB/GYN surgery +4	Proprietary	6	As expected Colonoscopy
UNITED SURGERY CENTER - TEMECULA	TEMECULA	Endoscopy	Proprietary	4	As expected Colonoscopy
INLAND SURGERY CENTER	REDLANDS	Foot surgeryOB/GYN surgeryOphthalmology +2	Proprietary	4	As expected Orthopedic
RANCHO MIRAGE SURGERY CENTER	RANCHO MIRAGE	Foot surgeryOrthopedic surgeryOtolaryngology +2	Proprietary	4	As expected Colonoscopy
RIVERSIDE MEDICAL CLINIC SURGERY CENTER	RIVERSIDE	OB/GYN surgeryOphthalmologyOrthopedic surgery +2	Government	3	As expected Colonoscopy
APPLE VALLEY OUTPATIENT SURGICAL CENTER	APPLE VALLEY	Foot surgeryPlastic surgeryOther surgery	Proprietary	2	As expected Urology
GLENWOOD SURGICAL CENTER, L P	RIVERSIDE	EndoscopyFoot surgeryOB/GYN surgery +5	Proprietary	5	As expected Colonoscopy
PALM VALLEY SURGICAL CENTER, INC	PALM DESERT	Foot surgeryOB/GYN surgeryOrthopedic surgery +3	Proprietary	2	Better Urology
MID VALLEY SURGERY CENTER	ONTARIO	OphthalmologyPlastic surgeryOther surgery	Proprietary	3	no case volume reported
PALM DESERT SURGERY CENTER A MEDICAL CORPORATION	PALM DESERT	Plastic surgery	Proprietary	1	As expected General surgery
PREMIER OUTPATIENT SURGERY CENTER	SAN BERNARDINO	Foot surgeryOrthopedic surgeryOtolaryngology +2	Proprietary	4	As expected Orthopedic
Brockton Surgery Center	RIVERSIDE	Endoscopy	Proprietary	2	As expected Colonoscopy
RANCHO MIRAGE PAIN CENTER	RANCHO MIRAGE	Pain management	Proprietary	1	no case volume reported
UNITED SURGERY CENTER - MURRIETA	MURRIETA	Endoscopy	Proprietary	2	As expected Colonoscopy
EYE SURGERY CENTER OF THE DESERT	RANCHO MIRAGE	Ophthalmology	Proprietary	3	no case volume reported
MIRAGE ENDOSCOPY CENTER L P	RANCHO MIRAGE	Endoscopy	Proprietary	2	Better Colonoscopy
MOUNTAIN VIEW SURGERY CENTER & MEDICAL CLINIC	REDLANDS	EndoscopyOther surgery	Proprietary	3	As expected Colonoscopy
RENAISSANCE ASC, LLC	PALM DESERT	OphthalmologyPlastic surgery	Proprietary	2	no case volume reported
Ontario Advanced Surgery Center	Ontario	Foot surgeryOB/GYN surgeryOphthalmology +2	Proprietary	5	As expected Colonoscopy
ENDOSCOPY CENTER OF THE INLAND EMPIRE, LLC	MURRIETA	Endoscopy	Proprietary	0	As expected Colonoscopy
MURRIETA VALLEY SURGERY CENTER	WILDOMAR	Other surgery	Proprietary	1	As expected General surgery
TEMECULA VALLEY DAY SURGERY &	MURRIETA	EndoscopyFoot surgeryOB/GYN surgery +6	Proprietary	4	no case volume reported
THE OAKS SURGERY CENTER	MURRIETA	Foot surgeryOphthalmologyOrthopedic surgery +3	Proprietary	4	As expected Orthopedic
ADVANCED AMBULATORY SURGERY CENTER	REDLANDS	Orthopedic surgeryPain management	Proprietary	3	As expected Orthopedic
DESERT VIEW ENDOSCOPY CENTER, LLC	VICTORVILLE	EndoscopyOtolaryngology	Proprietary	2	As expected Colonoscopy
GOLDEN SPRINGS SURGICAL CENTER	CATHEDRAL CITY	Pain management	Proprietary	1	no case volume reported
INLAND EYE SPECIALIST	HEMET	Ophthalmology	Proprietary	2	no case volume reported
INLAND SURGERY CENTER-MURRIETA	MURRIETA	Ophthalmology	Proprietary	1	no case volume reported
RIVER'S EDGE SURGERY CENTER, INC	RANCHO MIRAGE	Pain management	Proprietary	1	no case volume reported
SEVEN OAKS SURGERY CENTER LLC	SAN BERNARDINO	Orthopedic surgery	Proprietary	3	As expected Orthopedic
Desert Vein & Vascular Institute ASC, LLC	Rancho Mirage	Orthopedic surgery	Proprietary	2	no case volume reported
INLAND OUTPATIENT SURGERY CENTER	RIVERSIDE	Foot surgeryPain management	Proprietary	1	no case volume reported
CHINO PREMIER SURGERY CENTER	CHINO	EndoscopyOphthalmologyOther surgery	Proprietary	3	As expected Colonoscopy
STELLAR SURGICAL SPECIALTIES, INC	RANCHO MIRAGE	Pain management	Proprietary	2	As expected Orthopedic
Truecare Surgery Center	Chino Hills	EndoscopyFoot surgeryOB/GYN surgery +3	Proprietary	3	no case volume reported
ARCHIBALD SURGERY CENTER LLC	RANCHO CUCAMONGA	EndoscopyOphthalmologyPain management +1	Proprietary	3	As expected Colonoscopy
INLAND VALLEY SURGERY CENTER	TEMECULA	Ophthalmology	Proprietary	2	no case volume reported
A&M SURGERY CENTER, INC	COLTON	Pain management	Proprietary	1	no case volume reported
First Surgery Center Inc	TEMECULA	Endoscopy	Proprietary	3	As expected Colonoscopy
UPLAND VASCULAR CENTER LLC	UPLAND	Other surgery	Proprietary	2	no case volume reported
VALLEY ENDOSCOPY CENTER	HEMET	EndoscopyOther surgery	Proprietary	1	As expected Colonoscopy
Ace Endoscopy & Surgery Center	Rialto	Endoscopy	Proprietary	2	As expected Colonoscopy
CORONA SUMMIT SURGICAL CENTER	CORONA	EndoscopyFoot surgeryOB/GYN surgery +5	Proprietary	4	As expected Colonoscopy
HEMET HEALTHCARE SURGICENTER	HEMET	Foot surgeryOB/GYN surgeryOphthalmology +2	Proprietary	4	no case volume reported
CAL MED ASC LLC	COLTON	EndoscopyOphthalmologyPain management +2	Proprietary	7	no case volume reported
PODIATRIC SURGERY CENTER	HEMET	Foot surgery	Proprietary	1	no case volume reported
SOUTHLAND ENDOSCOPY CENTER	HEMET	Endoscopy	Proprietary	0	As expected Colonoscopy
ST JOHN SURGERY CENTER INC	COLTON	Dental surgeryEndoscopyFoot surgery +5	Proprietary	1	no case volume reported
ADVANCED ENDOSCOPY CENTER - GASTROENTEROLOGY	MURRIETA	Endoscopy	Proprietary	1	As expected Colonoscopy
HIGH DESERT ENDOSCOPY	APPLE VALLEY	Endoscopy	Proprietary	1	As expected Colonoscopy
INLAND SURGERY CENTER INC	RIVERSIDE	Foot surgery	Proprietary	1	no case volume reported
INNOVATIVE PAIN TREATMENT SURGERY CENTER OF TEMCUL	TEMECULA	Other surgery	Proprietary	1	no case volume reported
MURRIETA SPECIALTY SURGERY CENTER	MURRIETA	Other surgery	Proprietary	1	As expected General surgery
Nephrology Associates Ambulatory Surgery Center,	RIVERSIDE	Other surgery	Proprietary	2	no case volume reported
PRECISION SURGERY CENTER	RIVERSIDE	Plastic surgery	Proprietary	2	no case volume reported
RIVERWALK SURGERY CENTER	RIVERSIDE	Endoscopy	Proprietary	1	As expected Colonoscopy
TERRACINA SURGICAL ARTS INC	REDLANDS	Dental surgeryPlastic surgery	Government	1	no case volume reported
THE EYE SURGERY CENTER	COLTON	OphthalmologyOther surgery	Proprietary	2	no case volume reported
WEST COAST SURGERY INC	PALM DESERT	Orthopedic surgery	Proprietary	1	no case volume reported
ZAHRA SURGERY CENTER, LP	TEMECULA	Orthopedic surgeryPain management	Proprietary	2	no case volume reported
AARONSON PLASTIC SURGERY CENTER	PALM SPRINGS	Plastic surgery	Proprietary	2	no case volume reported
AMERICAN SURGICAL CENTERS, LP	PALM SPRINGS	OB/GYN surgeryOther surgery	Proprietary	3	no case volume reported
Aurora Surgery Center	PALM DESERT	Foot surgeryPain managementPlastic surgery +1	Proprietary	2	no case volume reported
CAL MED VASCULAR ASC, LLC	COLTON	Other surgery	Proprietary	2	no case volume reported
CHINO STONE & SURGERY CENTER	CHINO	Other surgery	Proprietary	2	no case volume reported
CHINO VASCULAR & SURGERY CENTER INC	CHINO	Foot surgeryPain managementOther surgery	Proprietary	2	no case volume reported
Corona Heights Surgery Center, LLC	CORONA	Endoscopy	Proprietary	2	no case volume reported
CORONA OUTPATIENT SURGICENTER, LLC	CORONA	Ophthalmology	Proprietary	20	no case volume reported
CORONA SPECIALTY CARE SURGERY CENTER	CORONA	Other surgery	Proprietary	1	no case volume reported
Eko Surgery Center	Palm Desert	Foot surgeryOphthalmologyOrthopedic surgery +2	Proprietary	2	no case volume reported
FOOTHILL AMBULATORY SURGERY CENTER	UPLAND	OtolaryngologyPlastic surgery	Proprietary	1	no case volume reported
HEMET ENDOSCOPY CENTER	HEMET	EndoscopyPain management	Proprietary	2	no case volume reported
HIGH DESERT EYE SURGERY CENTER	APPLE VALLEY	Other surgery	Proprietary	1	no case volume reported
HIGHLAND SPRINGS SURGERY CENTER	BEAUMONT	EndoscopyOphthalmologyOrthopedic surgery +2	Non-Profit	4	no case volume reported
INDIO SURGERY CENTER, INC	INDIO	Dental surgery	Proprietary	3	no case volume reported
INLAND EMPIRE MINIMALLY INVASIVE SURGERY INSTITUTE	CORONA	EndoscopyFoot surgeryOB/GYN surgery +6	Proprietary	1	no case volume reported
LOMA LINDA UNIVERSITY SPECIAL CARE DENTISTRY	LOMA LINDA	Dental surgeryOther surgery	Non-Profit	4	no case volume reported
MERIT SURGERY CENTER, INC.	UPLAND	Orthopedic surgeryPlastic surgery	Proprietary	3	no case volume reported
MURRIETA CENTER FOR PAIN, INC	MURRIETA	Pain management	Proprietary	1	no case volume reported
PACIFIC EYE INSTITUTE	UPLAND	Ophthalmology	Proprietary	2	no case volume reported
Plastic & Reconstructive Surgery & Laser Medical Center of the Desert	Rancho Mirage	Plastic surgery	Proprietary	1	no case volume reported
REDLANDS DENTAL SURGERY CENTER	REDLANDS	Dental surgery	Proprietary	2	no case volume reported
RIVERSIDE MEDICAL CLINIC SURGERY CENTER	RIVERSIDE	EndoscopyFoot surgeryOB/GYN surgery +6	Proprietary	4	no case volume reported
RIVERSIDE OUTPATIENT SURGICAL INSTITUTE	RIVERSIDE	EndoscopyOB/GYN surgeryOphthalmology +5	Proprietary	2	no case volume reported
RIVERSIDE REGIONAL SURGERY CENTER, INC	RIVERSIDE	Pain management	Proprietary	1	no case volume reported
THE SURGERY CENTER OF RIVERSIDE	RIVERSIDE	Ophthalmology	Proprietary	1	no case volume reported
Wika Endoscopy Center	APPLE VALLEY	Dental surgery	Proprietary	1	no case volume reported
ADVANCED ENDOSCOPY CENTERS	LA QUINTA	not filed	—	—	no case volume reported
AVA Vascular Surgery Center	MURRIETA	not filed	—	—	no case volume reported
Cal Med Endoscopy Center, LLC	Colton	not filed	—	—	no case volume reported
Cornerstone Surgery Center & Anesthesia Nursing Services Inc.	RIVERSIDE	not filed	—	—	no case volume reported
Crosssav Surgical Center, Inc	VICTORVILLE	not filed	—	—	no case volume reported
Loma Linda Surgery Center, LLC	LOMA LINDA	not filed	—	—	no case volume reported
Murrieta Pain Management Center	MURRIETA	not filed	—	—	no case volume reported
RMC Surgery Center	CORONA	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
EL MIRADOR SURGERY CENTER	10.1 As expected	2.4 As expected	4.5 As expected	0.9 As expected	0.051	95	96	302
LOMA LINDA SURGICAL INSTITUTE, LLC	—	2.4 As expected	—	—	0.148	98	97	197
GOLDEN TRIANGLE SURGICENTER	9.8 As expected	2.8 As expected	7.1 As expected	1 As expected	0.101	96	94	228
PHYSICIAN'S SURGERY CENTER	9.4 As expected	2.3 As expected	—	—	0.162	98	97	202
SAN ANTONIO AMBULATORY SURGICAL CENTER	9.8 As expected	2.6 As expected	5.2 As expected	1.1 As expected	0.112	96	96	144
UNITED SURGERY CENTER - TEMECULA	10.8 As expected	—	—	0.9 As expected	0	96	94	164
INLAND SURGERY CENTER	—	2.6 As expected	—	—	0.084	96	94	178
RANCHO MIRAGE SURGERY CENTER	9.7 As expected	1.8 As expected	4.2 As expected	0.9 As expected	0.112	97	96	179
RIVERSIDE MEDICAL CLINIC SURGERY CENTER	9.8 As expected	2.7 As expected	5.4 As expected	1 As expected	0.056	93	92	1374
APPLE VALLEY OUTPATIENT SURGICAL CENTER	—	—	5.1 As expected	—	0.167	93	92	129
GLENWOOD SURGICAL CENTER, L P	10.1 As expected	2.3 As expected	—	0.9 As expected	0.061	92	91	189
PALM VALLEY SURGICAL CENTER, INC	—	—	3.5 Better	—	0.159	90	90	92
MID VALLEY SURGERY CENTER	—	—	—	—	0	93	91	302
PALM DESERT SURGERY CENTER A MEDICAL CORPORATION	—	—	—	1 As expected	0	94	93	35
PREMIER OUTPATIENT SURGERY CENTER	—	2.5 As expected	—	0.9 As expected	0.095	97	96	482
Brockton Surgery Center	9.4 As expected	—	—	—	0.023	90	87	107
RANCHO MIRAGE PAIN CENTER	—	—	—	—	0.138	98	97	44
UNITED SURGERY CENTER - MURRIETA	8.5 As expected	—	—	—	0	95	96	157
EYE SURGERY CENTER OF THE DESERT	—	—	—	—	0	95	93	232
MIRAGE ENDOSCOPY CENTER L P	7.4 Better	—	—	—	0.197	94	95	257
MOUNTAIN VIEW SURGERY CENTER & MEDICAL CLINIC	10.3 As expected	—	—	—	0.108	95	95	56
RENAISSANCE ASC, LLC	—	—	—	—	0.018	93	91	131
Ontario Advanced Surgery Center	10.1 As expected	2.5 As expected	—	—	—	93	90	195
ENDOSCOPY CENTER OF THE INLAND EMPIRE, LLC	10.1 As expected	—	—	—	0.014	95	95	353
MURRIETA VALLEY SURGERY CENTER	—	—	—	1 As expected	—	93	91	116
TEMECULA VALLEY DAY SURGERY &	—	—	—	—	—	95	94	147
THE OAKS SURGERY CENTER	—	2.4 As expected	—	—	—	95	95	60
ADVANCED AMBULATORY SURGERY CENTER	—	2.4 As expected	—	—	—	97	96	172
DESERT VIEW ENDOSCOPY CENTER, LLC	10.7 As expected	—	—	—	—	94	93	64
GOLDEN SPRINGS SURGICAL CENTER	—	—	—	—	—	95	94	80
INLAND EYE SPECIALIST	—	—	—	—	—	93	92	221
INLAND SURGERY CENTER-MURRIETA	—	—	—	—	—	95	94	272
RIVER'S EDGE SURGERY CENTER, INC	—	—	—	—	—	92	91	57
SEVEN OAKS SURGERY CENTER LLC	—	2 As expected	—	—	—	96	95	239
Desert Vein & Vascular Institute ASC, LLC	—	—	—	—	—	97	95	25
INLAND OUTPATIENT SURGERY CENTER	—	—	—	—	—	90	90	25
CHINO PREMIER SURGERY CENTER	10.9 As expected	—	—	—	0	—	—	—
STELLAR SURGICAL SPECIALTIES, INC	—	2.8 As expected	—	—	0.826	—	—	—
Truecare Surgery Center	—	—	—	—	—	—	—	—
ARCHIBALD SURGERY CENTER LLC	9.6 As expected	—	—	—	0.031	—	—	—
INLAND VALLEY SURGERY CENTER	—	—	—	—	0	—	—	—
A&M SURGERY CENTER, INC	—	—	—	—	0	—	—	—
First Surgery Center Inc	10.2 As expected	—	—	—	0.111	—	—	—
UPLAND VASCULAR CENTER LLC	—	—	—	—	0.299	—	—	—
VALLEY ENDOSCOPY CENTER	9 As expected	—	—	—	0.044	—	—	—
Ace Endoscopy & Surgery Center	10.9 As expected	—	—	—	0.037	—	—	—
CORONA SUMMIT SURGICAL CENTER	10.3 As expected	—	—	—	—	—	—	—
HEMET HEALTHCARE SURGICENTER	—	—	—	—	—	—	—	—
CAL MED ASC LLC	—	—	—	—	—	—	—	—
PODIATRIC SURGERY CENTER	—	—	—	—	—	—	—	—
SOUTHLAND ENDOSCOPY CENTER	9.6 As expected	—	—	—	—	—	—	—
ST JOHN SURGERY CENTER INC	—	—	—	—	—	—	—	—
ADVANCED ENDOSCOPY CENTER - GASTROENTEROLOGY	9.7 As expected	—	—	—	—	—	—	—
HIGH DESERT ENDOSCOPY	9.8 As expected	—	—	—	—	—	—	—
INLAND SURGERY CENTER INC	—	—	—	—	—	—	—	—
INNOVATIVE PAIN TREATMENT SURGERY CENTER OF TEMCUL	—	—	—	—	—	—	—	—
MURRIETA SPECIALTY SURGERY CENTER	—	—	—	1 As expected	—	—	—	—
Nephrology Associates Ambulatory Surgery Center,	—	—	—	—	—	—	—	—
PRECISION SURGERY CENTER	—	—	—	—	—	—	—	—
RIVERWALK SURGERY CENTER	10.1 As expected	—	—	—	—	—	—	—
TERRACINA SURGICAL ARTS INC	—	—	—	—	—	—	—	—
THE EYE SURGERY CENTER	—	—	—	—	—	—	—	—
WEST COAST SURGERY INC	—	—	—	—	—	—	—	—
ZAHRA SURGERY CENTER, LP	—	—	—	—	—	—	—	—
AARONSON PLASTIC SURGERY CENTER	—	—	—	—	—	—	—	—
AMERICAN SURGICAL CENTERS, LP	—	—	—	—	—	—	—	—
Aurora Surgery Center	—	—	—	—	—	—	—	—
CAL MED VASCULAR ASC, LLC	—	—	—	—	—	—	—	—
CHINO STONE & SURGERY CENTER	—	—	—	—	—	—	—	—
CHINO VASCULAR & SURGERY CENTER INC	—	—	—	—	—	—	—	—
Corona Heights Surgery Center, LLC	—	—	—	—	—	—	—	—
CORONA OUTPATIENT SURGICENTER, LLC	—	—	—	—	—	—	—	—
CORONA SPECIALTY CARE SURGERY CENTER	—	—	—	—	—	—	—	—
Eko Surgery Center	—	—	—	—	—	—	—	—
FOOTHILL AMBULATORY SURGERY CENTER	—	—	—	—	—	—	—	—
HEMET ENDOSCOPY CENTER	—	—	—	—	—	—	—	—
HIGH DESERT EYE SURGERY CENTER	—	—	—	—	—	—	—	—
HIGHLAND SPRINGS SURGERY CENTER	—	—	—	—	—	—	—	—
INDIO SURGERY CENTER, INC	—	—	—	—	—	—	—	—
INLAND EMPIRE MINIMALLY INVASIVE SURGERY INSTITUTE	—	—	—	—	—	—	—	—
LOMA LINDA UNIVERSITY SPECIAL CARE DENTISTRY	—	—	—	—	—	—	—	—
MERIT SURGERY CENTER, INC.	—	—	—	—	—	—	—	—
MURRIETA CENTER FOR PAIN, INC	—	—	—	—	—	—	—	—
PACIFIC EYE INSTITUTE	—	—	—	—	—	—	—	—
Plastic & Reconstructive Surgery & Laser Medical Center of the Desert	—	—	—	—	—	—	—	—
REDLANDS DENTAL SURGERY CENTER	—	—	—	—	—	—	—	—
RIVERSIDE MEDICAL CLINIC SURGERY CENTER	—	—	—	—	—	—	—	—
RIVERSIDE OUTPATIENT SURGICAL INSTITUTE	—	—	—	—	—	—	—	—
RIVERSIDE REGIONAL SURGERY CENTER, INC	—	—	—	—	—	—	—	—
THE SURGERY CENTER OF RIVERSIDE	—	—	—	—	—	—	—	—
Wika Endoscopy Center	—	—	—	—	—	—	—	—
ADVANCED ENDOSCOPY CENTERS	—	—	—	—	—	—	—	—
AVA Vascular Surgery Center	—	—	—	—	—	—	—	—
Cal Med Endoscopy Center, LLC	—	—	—	—	—	—	—	—
Cornerstone Surgery Center & Anesthesia Nursing Services Inc.	—	—	—	—	—	—	—	—
Crosssav Surgical Center, Inc	—	—	—	—	—	—	—	—
Loma Linda Surgery Center, LLC	—	—	—	—	—	—	—	—
Murrieta Pain Management Center	—	—	—	—	—	—	—	—
RMC Surgery Center	—	—	—	—	—	—	—	—

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 40140; the area name is the U.S. Census Bureau's own title for it, not one we invented.