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Medicare California · CY2024

Who bills the most Established patient problem focused exam of visual system (92012) to Medicare in California?

Medicare Part B FFS · CY2024 · as published by CMS
338
Billing groups
324,204
Named-group FFS services
$61,099,825
Named-group submitted charges
$188
Avg charge / service
$100
Avg allowed / service
16%
Top-5 concentration
28%
Independent share

338 physician groups billed Established patient problem focused exam of visual system (92012) to Medicare fee-for-service in California in 2024; the top five named groups hold 16% of that volume, and independent (non-hospital-affiliated) groups deliver 28%.

92012 — Established patient problem focused exam of visual system · Source: CMS Medicare Physician & Other Practitioners PUF (Part B), CY2024 release. Medicare fee-for-service only.

Snapshot covers the whole California market — the table below shows the top 100 groups (free tier).

Payer-mix context

Medicare fee-for-service covers 49% of Medicare in California; Medicare Advantage penetration 45% → 51% since 2020.

Market structure — concentration, independent share, and the consolidation trend for this market — is part of the market analytics platform — built, not launched yet. Notify me at launch →
#Physician groupCityStSpecialty Providers 92012 svcs Share*Phone
1 RIDGE EYE CARE INC MARYSVILLECAOPTOMETRY 19 15,308 3.1% (530) 743-1873
2 PACIFIC EYE INSTITUTE A MEDICAL GROUP INC UPLANDCAOPHTHALMOLOGY 47 10,975 2.2% (909) 982-8846
3 JULES STEIN EYE INSTITUTE MEDICAL GROUP ARCADIACAOPHTHALMOLOGY 116 10,403 2.1% (323) 442-7122
4 VITREO-RETINAL MEDICAL GROUP, INC. YUBA CITYCAOPHTHALMOLOGY 21 7,859 1.6% (530) 273-8358
5 SPECIALTY EYE CARE MEDICAL CENTER , INC GLENDALECAOPHTHALMOLOGY 4 6,632 1.3% (818) 265-7777
6 RETINA VITREOUS ASSOCIATES MEDICAL GROUP LOS ANGELESCAOPHTHALMOLOGY 17 6,346 1.3% (213) 483-8810
7 ADVANCED EYECARE PROFESSIONAL OPTOMETRIC GROUP GLENDALECAOPTOMETRY 8 6,059 1.2% (818) 240-0890
8 OPHTHALMOLOGY ASSOCIATES OF THE VALLEY MEDICAL GROUP ENCINOCAOPHTHALMOLOGY 8 5,921 1.2% (818) 990-3623
9 RETINA INSTITUTE OF CALIFORNIA MEDICAL GROUP, A CALIFORNIA MEDICAL PAR PASADENACAOPHTHALMOLOGY 82 5,239 1.0% (800) 898-2020
10 MIRAMAR EYE SPECIALISTS MEDICAL GROUP INC VENTURACAOPHTHALMOLOGY 25 4,816 1.0% (805) 648-3085
11 CALIFORNIA RETINA CONSULTANTS SANTA BARBARACAOPHTHALMOLOGY 11 4,804 1.0% (805) 963-1648
12 CALIFORNIA RETINA ASSOCIATES, LP CHULA VISTACAOPHTHALMOLOGY 19 4,677 0.9% 6194257755257755
13 NORTH BAY EYE ASSOCIATES, A MEDICAL CORPORATION SANTA ROSACAOPHTHALMOLOGY 11 4,179 0.8% (707) 544-3375
14 HARVARD EYE ASSOCIATES FKA ROGER OHANESIAN MD AND EDWARD KIM MD INC SAN CLEMENTECAOPHTHALMOLOGY 20 4,110 0.8% (949) 951-2020
15 NORTHERN CALIFORNIA RETINA VITREOUS ASSOCIATES MEDICAL GROUP, INC. SAN JOSECAOPHTHALMOLOGY 7 3,999 0.8% (408) 251-3500
16 RETINAL DIAGNOSTIC CENTER A MEDICAL CORPORATION CAMPBELLCAOPHTHALMOLOGY 6 3,888 0.8% (408) 559-0666
17 EAST BAY RETINA CONSULTANTS A MEDICAL GROUP INC OAKLANDCAOPHTHALMOLOGY 6 3,875 0.8% (510) 444-1600
18 SERRANO EYE CENTER MEDICAL GROUP LOS ANGELESCAOPHTHALMOLOGY 3 3,272 0.7% (213) 380-8800
19 EYE SPECIALISTS MEDICAL GROUP OF NAPA VALLEY INC NAPACAOPHTHALMOLOGY 6 3,114 0.6% (707) 255-6212
20 EYE CARE INSTITUTE A MEDICAL CORPORATION SANTA ROSACAOPHTHALMOLOGY 8 3,097 0.6% (707) 546-9800
21 BAY EYE MEDICAL GROUP INC SANTA CRUZCAOPHTHALMOLOGY 6 2,965 0.6% (831) 475-7012
22 CARSON MCBEATH AND BOSWELL INC LONG BEACHCAOPHTHALMOLOGY 8 2,907 0.6% (562) 984-7024
23 PAUL J DOUGHERTY M D INC WESTLAKE VILLAGECAOPHTHALMOLOGY 16 2,858 0.6% (805) 987-5300
24 VANTAGE EYE CENTER A MEDICAL CORP MONTEREYCAOPHTHALMOLOGY 19 2,717 0.5% (831) 647-3900
25 KENNETH R GROSSMAN MD INC MERCEDCAOPHTHALMOLOGY 2 2,672 0.5% (209) 383-0989
26 AMERICAN EYE INSTITUTE A MEDICAL CORP LOS ANGELESCAOPHTHALMOLOGY 6 2,607 0.5% (310) 652-1133
27 FIRST CHOICE PHYSICIAN PARTNERS PALM SPRINGSCAPHYSICIAN ASSISTANT 148 2,496 0.5%
28 ALI OD AND PATEL OD PROFESSIONAL OPTOMETRIC CORPORATION SAN LUIS OBISPOCAOPTOMETRY 3 2,479 0.5% (805) 544-0450
29 ANDREW G IWACH MD A PROFESSIONAL CORPORATION SAN FRANCISCOCAOPHTHALMOLOGY 3 2,441 0.5% (415) 981-2020
30 VPI VILLAGES INC THE VILLAGESCAOPHTHALMOLOGY 2 2,438 0.5% (708) 623-8214
31 CRAIG HELM M D A PROFESSIONAL CORPORATION VALENCIACAOPHTHALMOLOGY 9 2,436 0.5% (661) 259-3937
32 THE RETINA PARTNERS ENCINOCAOPHTHALMOLOGY 6 2,403 0.5% (818) 788-9333
33 CLAREMONT EYE ASSOCIATES MEDICAL GROUP CLAREMONTCAOPHTHALMOLOGY 3 2,394 0.5% (909) 624-8077
34 SACRAMENTO EYE CONSULTANTS A MED CORP SACRAMENTOCAOPHTHALMOLOGY 11 2,308 0.5% (916) 649-1515
35 LAKEWOOD EYE PHYSICIANS AND SURGEONS INC A MEDICAL GROUP LAKEWOODCAOPHTHALMOLOGY 8 2,305 0.5% (562) 232-1442
36 NGOC NGUYEN MD INC SAN JOSECAOPHTHALMOLOGY 2 2,245 0.4% (408) 272-3706
37 BAY AREA RETINA ASSOCIATES VALLEJOCAOPHTHALMOLOGY 8 2,222 0.4% (707) 552-9596
38 SPECTRUM EYE PHYSICIANS A MEDICAL CORPORATION CUPERTINOCAOPHTHALMOLOGY 14 2,184 0.4% (408) 253-3083
39 SHASTA EYE MEDICAL GROUP INC REDDINGCAOPHTHALMOLOGY 6 2,131 0.4% (530) 223-2500
40 EYE PHYSICIANS OF THE EAST BAY MEDICAL CORPORATION OAKLANDCAOPHTHALMOLOGY 5 2,069 0.4% (510) 893-4318
41 SIERRA VIEW MEDICAL EYE INC GRASS VALLEYCAOPHTHALMOLOGY 6 2,058 0.4% (530) 272-3411
42 LINDA VU MD, A MEDICAL CORP MONTEREY PARKCAOPHTHALMOLOGY 3 2,029 0.4% (626) 382-2020
43 BAKERSFIELD EYE INSTITUTE INC BAKERSFIELDCAOPHTHALMOLOGY 6 2,018 0.4% (661) 589-9400
44 DAVID D GILBERT MD INC WALNUT CREEKCAOPHTHALMOLOGY 4 1,973 0.4% (925) 934-7800
45 MEHRAN TABAN MD INC TORRANCECAOPHTHALMOLOGY 2 1,956 0.4% (424) 247-9090
46 V. NICHOLAS BATRA M.D. INC. SAN LEANDROCAOPHTHALMOLOGY 5 1,956 0.4% (510) 357-3636
47 EYE MEDICAL CLINIC OF FRESNO INC FRESNOCAOPHTHALMOLOGY 15 1,950 0.4% 55948650002822
48 EYE PHYSICIANS OF LONG BEACH A MEDICAL GROUP INC LONG BEACHCAOPHTHALMOLOGY 8 1,942 0.4% (562) 799-2020
49 EAST-WEST EYE INSTITUTE A MEDICAL CORPORATION TORRANCECAOPHTHALMOLOGY 17 1,859 0.4% (310) 373-6708
50 RETINA ASSOCIATES OF ORANGE COUNTY SANTA ANACAOPHTHALMOLOGY 5 1,851 0.4% (714) 543-6020
51 ADVANCED RETINA ASSOCIATES MEDICAL GROUP INC. RESEDACAOPHTHALMOLOGY 2 1,848 0.4% (818) 886-6700
52 PACIFIC EYE SURGEONS A CALIFORNIA PROFESSIONAL MEDICAL CORPORATION PASO ROBLESCAOPHTHALMOLOGY 20 1,810 0.4% (805) 545-8100
53 PACIFIC EYE ASSOCIATES, A MEDICAL CORPORATION SAN FRANCISCOCAOPHTHALMOLOGY 13 1,796 0.4% (415) 923-3007
54 PUENTE HILLS EYE CARE CENTER, INC. HACIENDA HEIGHTSCAOPHTHALMOLOGY 3 1,793 0.4% (626) 912-6888
55 WOLSTAN AND GOLDBERG EYE ASSOCIATES INC A MEDICAL CORPORATON TORRANCECAOPHTHALMOLOGY 7 1,777 0.4% (310) 543-2611
56 SAN FRANCISCO EYE INSTITUTE INC SAN FRANCISCOCAOPHTHALMOLOGY 10 1,767 0.4% (415) 421-8667
57 DIGNITY HEALTH MEDICAL FOUNDATION FOLSOMCADIAGNOSTIC RADIOLOGY 1197 1,762 0.4% (916) 983-7476
58 THOMAS S TOOMA M D A PROFESSIONAL CORPORATION SAN DIEGOCAOPTOMETRY 33 1,735 0.3% (858) 278-9900
59 BEVERLY HILLS INSTITUTE OF OPHTHALMOLOGY BEVERLY HILLSCAOPHTHALMOLOGY 4 1,734 0.3% (310) 273-2333
60 CALIFORNIA EYE CLINIC ANTIOCHCAOPTOMETRY 9 1,717 0.3% (925) 754-2300
61 NORTHRIDGE EYE CARE, A PROFESSIONAL CORPORATION RED BLUFFCAOPHTHALMOLOGY 4 1,685 0.3% (530) 529-1750
62 JONATHAN M. DAVIDORF, M.D. INC. WEST HILLSCAOPHTHALMOLOGY 6 1,681 0.3% (818) 883-0112
63 EAST BAY OPHTHALMOLOGY PINOLECAOPHTHALMOLOGY 3 1,665 0.3% (510) 724-1768
64 VALLEY EYE INSTITUTE INC ENCINOCAOPHTHALMOLOGY 5 1,659 0.3% (818) 906-2929
65 MERCY EYE CARE MEDICAL GROUP INC MONTEBELLOCAOPHTHALMOLOGY 5 1,640 0.3% (562) 866-1803
66 STEVEN G KHWARG MD PROF CORP LOS ANGELESCAOPHTHALMOLOGY 3 1,630 0.3% (213) 484-1000
67 STEVEN D ZELKO MD INC SOLVANGCAOPHTHALMOLOGY 2 1,526 0.3% (805) 688-6612
68 SOUTHERN CALIFORNIA EYE CONSULTANTS INC. ORANGECAOPHTHALMOLOGY 6 1,525 0.3% (714) 771-2020
69 MOSAIC EYE SPECIALISTS PC SAN DIEGOCAOPHTHALMOLOGY 2 1,518 0.3% (619) 226-1877
70 EYE TREATMENT CENTER, AN INCORPORATED MEDICAL GROUP, INC LONG BEACHCAOPHTHALMOLOGY 5 1,502 0.3% (562) 988-8668
71 SF BAY EYE ALAMEDACAOPHTHALMOLOGY 4 1,465 0.3% (510) 522-0377
72 BRADLEY J SANDLER MD INC. FAIRFIELDCAOPHTHALMOLOGY 2 1,440 0.3% (707) 422-6500
73 EYE SITE SACRAMENTO MEDICAL GROUP INC. SACRAMENTOCAOPHTHALMOLOGY 7 1,427 0.3% 9164528105214
74 FACULTY PHYSICIANS AND SURGEONS OF LLUSM LOMA LINDACADIAGNOSTIC RADIOLOGY 1317 1,401 0.3%
75 USC CARE MEDICAL GROUP INC LOS ANGELESCADIAGNOSTIC RADIOLOGY 1374 1,399 0.3% (800) 872-2273
76 KATHLEEN J DENNIS-ZARATE MD A MEDICAL CORP MONTROSECAOPHTHALMOLOGY 2 1,364 0.3% (818) 249-6447
77 WAYNE H MARTIN MD INC DIAMOND BARCAOPTOMETRY 3 1,325 0.3% (909) 860-6768
78 ALAN M BERG MD INC AND ROBERT E FEINFIELD MD INC BURBANKCAOPHTHALMOLOGY 8 1,288 0.3% (818) 845-3557
79 KERRY K ASSIL MD INC BEVERLY HILLSCAOPHTHALMOLOGY 9 1,279 0.3% (310) 651-2300
80 MARSHBURN EYE CENTER INCORPORATED WHITTIERCAOPHTHALMOLOGY 5 1,142 0.2% (562) 947-8681
81 EYE SPECIALTIES MEDICAL GROUP INC. CASTRO VALLEYCAOPHTHALMOLOGY 3 1,106 0.2% (510) 881-8823
82 RICHARD H HAVUNJIAN MD A PROFESSIONAL CORPORATION GLENDALECAOPHTHALMOLOGY 2 1,091 0.2% (818) 548-5858
83 PACIFIC EYE SPECIALISTS A PROFESSIONAL CORPORATION DALY CITYCAOPHTHALMOLOGY 2 1,088 0.2% (650) 755-6900
84 PASADENA EYE MEDICAL GROUP PASADENACAOPHTHALMOLOGY 4 1,077 0.2% (626) 796-5325
85 EAST BAY EYE CENTERS MEDICAL CORPORATION SAN RAMONCAOPHTHALMOLOGY 6 1,077 0.2% (925) 830-8823
86 SOUTHERN CALIFORNIA PERMANENTE MEDICAL GROUP LOS ANGELESCAINTERNAL MEDICINE 11157 1,054 0.2% (800) 954-8000
87 EYE PHYSICIANS MEDICAL SURGICAL CENTER CHULA VISTACAOPHTHALMOLOGY 10 1,054 0.2%
88 EAGLE ROCK MEDLINK GROUP INC LOS ANGELESCAINTERNAL MEDICINE 4 1,053 0.2% (818) 439-2021
89 VINCENT Q NGUYEN MD INC SAN DIEGOCAOPHTHALMOLOGY 3 1,048 0.2% (858) 609-7100
90 KENNETH C LOW MD A PROFESSIONAL CORPORATION FREMONTCAOPHTHALMOLOGY 2 1,041 0.2% (510) 794-0660
91 MEDICAL VISION TECHNOLOGY OPHTHALMOLOGY MEDICAL GROUP INC SACRAMENTOCAOPHTHALMOLOGY 9 1,030 0.2% (916) 731-8040
92 PETER J CORNELL M D INC BEVERLY HILLSCAOPTOMETRY 4 1,025 0.2% (310) 274-9205
93 JOHN D ZDRAL MD INC FULLERTONCAOPHTHALMOLOGY 3 1,002 0.2% (714) 879-7372
94 VISALIA EYE CENTER INC VISALIACAOPHTHALMOLOGY 3 995 0.2% (559) 733-4372
95 SCOTT W BEEVE MD INC GLENDALECAOPHTHALMOLOGY 2 990 0.2% (818) 790-8001
96 MID PENINSULA EYE PHYSICIANS AND SURGEONS MEDICAL GROUP SAN MATEOCAOPHTHALMOLOGY 6 990 0.2% (650) 342-4595
97 MILAUSKAS EYE INSTITUTE MEDICAL GROUP II, INC. RANCHO MIRAGECAOPTOMETRY 10 985 0.2% (760) 340-3937
98 ORANGE COUNTY OPHTHALMOLOGY MEDICAL GROUP. GARDEN GROVECAOPHTHALMOLOGY 4 977 0.2% (714) 534-8373
99 ARTHUR ASTORINO JR MD, A MEDICAL CORPORATION NEWPORT BEACHCAOPHTHALMOLOGY 5 976 0.2% (949) 645-2250
100 OROHEALTH CORPORATION A NON PROFIT HEALTHCARE SYSTEM OROVILLECAINTERNAL MEDICINE 124 966 0.2% (530) 532-8654

*Share of California's disclosed Medicare-FFS services for 92012, counted once per clinician. Volume is placed in the state it was billed from, so this page ranks the groups actually billing 92012 in California — including groups registered elsewhere ("City" is each group's registered location). Group figures sum clinicians affiliated with exactly one group; clinicians in several groups are listed in each group's drill-down but not volume-attributed to any single group.

How to read this. Figures are Medicare fee-for-service only — not all-payer — from the CMS Medicare Physician & Other Practitioners Public Use File (Part B), CY2024 release. CMS suppresses any provider×code row under 11 beneficiaries, so a missing group means "suppressed," never zero. "Charges" are provider-submitted amounts, not payments. Groups are ranked by measured service volume attributed to clinicians in exactly one group — clinicians affiliated with several groups are listed in rosters but never volume-attributed to a single group — a direct read of the public record, not a rating or quality score. Full method: Methods & Sources.

Comparing against an all-payer estimate?

These are exact counts from Medicare fee-for-service claims — roughly a third to half of most procedure markets, depending on payer mix. Modeled all-payer databases project the remainder statistically; we publish the audited floor and label it as such. Same market, different denominator. How the numbers reconcile →