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 CMS338 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).
Medicare fee-for-service covers 49% of Medicare in California; Medicare Advantage penetration 45% → 51% since 2020.
| # | Physician group | City | St | Specialty | Providers | 92012 svcs | Share* | Phone |
|---|---|---|---|---|---|---|---|---|
| 1 | RIDGE EYE CARE INC | MARYSVILLE | CA | OPTOMETRY | 19 | 15,308 | 3.1% | (530) 743-1873 |
| 2 | PACIFIC EYE INSTITUTE A MEDICAL GROUP INC | UPLAND | CA | OPHTHALMOLOGY | 47 | 10,975 | 2.2% | (909) 982-8846 |
| 3 | JULES STEIN EYE INSTITUTE MEDICAL GROUP | ARCADIA | CA | OPHTHALMOLOGY | 116 | 10,403 | 2.1% | (323) 442-7122 |
| 4 | VITREO-RETINAL MEDICAL GROUP, INC. | YUBA CITY | CA | OPHTHALMOLOGY | 21 | 7,859 | 1.6% | (530) 273-8358 |
| 5 | SPECIALTY EYE CARE MEDICAL CENTER , INC | GLENDALE | CA | OPHTHALMOLOGY | 4 | 6,632 | 1.3% | (818) 265-7777 |
| 6 | RETINA VITREOUS ASSOCIATES MEDICAL GROUP | LOS ANGELES | CA | OPHTHALMOLOGY | 17 | 6,346 | 1.3% | (213) 483-8810 |
| 7 | ADVANCED EYECARE PROFESSIONAL OPTOMETRIC GROUP | GLENDALE | CA | OPTOMETRY | 8 | 6,059 | 1.2% | (818) 240-0890 |
| 8 | OPHTHALMOLOGY ASSOCIATES OF THE VALLEY MEDICAL GROUP | ENCINO | CA | OPHTHALMOLOGY | 8 | 5,921 | 1.2% | (818) 990-3623 |
| 9 | RETINA INSTITUTE OF CALIFORNIA MEDICAL GROUP, A CALIFORNIA MEDICAL PAR | PASADENA | CA | OPHTHALMOLOGY | 82 | 5,239 | 1.0% | (800) 898-2020 |
| 10 | MIRAMAR EYE SPECIALISTS MEDICAL GROUP INC | VENTURA | CA | OPHTHALMOLOGY | 25 | 4,816 | 1.0% | (805) 648-3085 |
| 11 | CALIFORNIA RETINA CONSULTANTS | SANTA BARBARA | CA | OPHTHALMOLOGY | 11 | 4,804 | 1.0% | (805) 963-1648 |
| 12 | CALIFORNIA RETINA ASSOCIATES, LP | CHULA VISTA | CA | OPHTHALMOLOGY | 19 | 4,677 | 0.9% | 6194257755257755 |
| 13 | NORTH BAY EYE ASSOCIATES, A MEDICAL CORPORATION | SANTA ROSA | CA | OPHTHALMOLOGY | 11 | 4,179 | 0.8% | (707) 544-3375 |
| 14 | HARVARD EYE ASSOCIATES FKA ROGER OHANESIAN MD AND EDWARD KIM MD INC | SAN CLEMENTE | CA | OPHTHALMOLOGY | 20 | 4,110 | 0.8% | (949) 951-2020 |
| 15 | NORTHERN CALIFORNIA RETINA VITREOUS ASSOCIATES MEDICAL GROUP, INC. | SAN JOSE | CA | OPHTHALMOLOGY | 7 | 3,999 | 0.8% | (408) 251-3500 |
| 16 | RETINAL DIAGNOSTIC CENTER A MEDICAL CORPORATION | CAMPBELL | CA | OPHTHALMOLOGY | 6 | 3,888 | 0.8% | (408) 559-0666 |
| 17 | EAST BAY RETINA CONSULTANTS A MEDICAL GROUP INC | OAKLAND | CA | OPHTHALMOLOGY | 6 | 3,875 | 0.8% | (510) 444-1600 |
| 18 | SERRANO EYE CENTER MEDICAL GROUP | LOS ANGELES | CA | OPHTHALMOLOGY | 3 | 3,272 | 0.7% | (213) 380-8800 |
| 19 | EYE SPECIALISTS MEDICAL GROUP OF NAPA VALLEY INC | NAPA | CA | OPHTHALMOLOGY | 6 | 3,114 | 0.6% | (707) 255-6212 |
| 20 | EYE CARE INSTITUTE A MEDICAL CORPORATION | SANTA ROSA | CA | OPHTHALMOLOGY | 8 | 3,097 | 0.6% | (707) 546-9800 |
| 21 | BAY EYE MEDICAL GROUP INC | SANTA CRUZ | CA | OPHTHALMOLOGY | 6 | 2,965 | 0.6% | (831) 475-7012 |
| 22 | CARSON MCBEATH AND BOSWELL INC | LONG BEACH | CA | OPHTHALMOLOGY | 8 | 2,907 | 0.6% | (562) 984-7024 |
| 23 | PAUL J DOUGHERTY M D INC | WESTLAKE VILLAGE | CA | OPHTHALMOLOGY | 16 | 2,858 | 0.6% | (805) 987-5300 |
| 24 | VANTAGE EYE CENTER A MEDICAL CORP | MONTEREY | CA | OPHTHALMOLOGY | 19 | 2,717 | 0.5% | (831) 647-3900 |
| 25 | KENNETH R GROSSMAN MD INC | MERCED | CA | OPHTHALMOLOGY | 2 | 2,672 | 0.5% | (209) 383-0989 |
| 26 | AMERICAN EYE INSTITUTE A MEDICAL CORP | LOS ANGELES | CA | OPHTHALMOLOGY | 6 | 2,607 | 0.5% | (310) 652-1133 |
| 27 | FIRST CHOICE PHYSICIAN PARTNERS | PALM SPRINGS | CA | PHYSICIAN ASSISTANT | 148 | 2,496 | 0.5% | — |
| 28 | ALI OD AND PATEL OD PROFESSIONAL OPTOMETRIC CORPORATION | SAN LUIS OBISPO | CA | OPTOMETRY | 3 | 2,479 | 0.5% | (805) 544-0450 |
| 29 | ANDREW G IWACH MD A PROFESSIONAL CORPORATION | SAN FRANCISCO | CA | OPHTHALMOLOGY | 3 | 2,441 | 0.5% | (415) 981-2020 |
| 30 | VPI VILLAGES INC | THE VILLAGES | CA | OPHTHALMOLOGY | 2 | 2,438 | 0.5% | (708) 623-8214 |
| 31 | CRAIG HELM M D A PROFESSIONAL CORPORATION | VALENCIA | CA | OPHTHALMOLOGY | 9 | 2,436 | 0.5% | (661) 259-3937 |
| 32 | THE RETINA PARTNERS | ENCINO | CA | OPHTHALMOLOGY | 6 | 2,403 | 0.5% | (818) 788-9333 |
| 33 | CLAREMONT EYE ASSOCIATES MEDICAL GROUP | CLAREMONT | CA | OPHTHALMOLOGY | 3 | 2,394 | 0.5% | (909) 624-8077 |
| 34 | SACRAMENTO EYE CONSULTANTS A MED CORP | SACRAMENTO | CA | OPHTHALMOLOGY | 11 | 2,308 | 0.5% | (916) 649-1515 |
| 35 | LAKEWOOD EYE PHYSICIANS AND SURGEONS INC A MEDICAL GROUP | LAKEWOOD | CA | OPHTHALMOLOGY | 8 | 2,305 | 0.5% | (562) 232-1442 |
| 36 | NGOC NGUYEN MD INC | SAN JOSE | CA | OPHTHALMOLOGY | 2 | 2,245 | 0.4% | (408) 272-3706 |
| 37 | BAY AREA RETINA ASSOCIATES | VALLEJO | CA | OPHTHALMOLOGY | 8 | 2,222 | 0.4% | (707) 552-9596 |
| 38 | SPECTRUM EYE PHYSICIANS A MEDICAL CORPORATION | CUPERTINO | CA | OPHTHALMOLOGY | 14 | 2,184 | 0.4% | (408) 253-3083 |
| 39 | SHASTA EYE MEDICAL GROUP INC | REDDING | CA | OPHTHALMOLOGY | 6 | 2,131 | 0.4% | (530) 223-2500 |
| 40 | EYE PHYSICIANS OF THE EAST BAY MEDICAL CORPORATION | OAKLAND | CA | OPHTHALMOLOGY | 5 | 2,069 | 0.4% | (510) 893-4318 |
| 41 | SIERRA VIEW MEDICAL EYE INC | GRASS VALLEY | CA | OPHTHALMOLOGY | 6 | 2,058 | 0.4% | (530) 272-3411 |
| 42 | LINDA VU MD, A MEDICAL CORP | MONTEREY PARK | CA | OPHTHALMOLOGY | 3 | 2,029 | 0.4% | (626) 382-2020 |
| 43 | BAKERSFIELD EYE INSTITUTE INC | BAKERSFIELD | CA | OPHTHALMOLOGY | 6 | 2,018 | 0.4% | (661) 589-9400 |
| 44 | DAVID D GILBERT MD INC | WALNUT CREEK | CA | OPHTHALMOLOGY | 4 | 1,973 | 0.4% | (925) 934-7800 |
| 45 | MEHRAN TABAN MD INC | TORRANCE | CA | OPHTHALMOLOGY | 2 | 1,956 | 0.4% | (424) 247-9090 |
| 46 | V. NICHOLAS BATRA M.D. INC. | SAN LEANDRO | CA | OPHTHALMOLOGY | 5 | 1,956 | 0.4% | (510) 357-3636 |
| 47 | EYE MEDICAL CLINIC OF FRESNO INC | FRESNO | CA | OPHTHALMOLOGY | 15 | 1,950 | 0.4% | 55948650002822 |
| 48 | EYE PHYSICIANS OF LONG BEACH A MEDICAL GROUP INC | LONG BEACH | CA | OPHTHALMOLOGY | 8 | 1,942 | 0.4% | (562) 799-2020 |
| 49 | EAST-WEST EYE INSTITUTE A MEDICAL CORPORATION | TORRANCE | CA | OPHTHALMOLOGY | 17 | 1,859 | 0.4% | (310) 373-6708 |
| 50 | RETINA ASSOCIATES OF ORANGE COUNTY | SANTA ANA | CA | OPHTHALMOLOGY | 5 | 1,851 | 0.4% | (714) 543-6020 |
| 51 | ADVANCED RETINA ASSOCIATES MEDICAL GROUP INC. | RESEDA | CA | OPHTHALMOLOGY | 2 | 1,848 | 0.4% | (818) 886-6700 |
| 52 | PACIFIC EYE SURGEONS A CALIFORNIA PROFESSIONAL MEDICAL CORPORATION | PASO ROBLES | CA | OPHTHALMOLOGY | 20 | 1,810 | 0.4% | (805) 545-8100 |
| 53 | PACIFIC EYE ASSOCIATES, A MEDICAL CORPORATION | SAN FRANCISCO | CA | OPHTHALMOLOGY | 13 | 1,796 | 0.4% | (415) 923-3007 |
| 54 | PUENTE HILLS EYE CARE CENTER, INC. | HACIENDA HEIGHTS | CA | OPHTHALMOLOGY | 3 | 1,793 | 0.4% | (626) 912-6888 |
| 55 | WOLSTAN AND GOLDBERG EYE ASSOCIATES INC A MEDICAL CORPORATON | TORRANCE | CA | OPHTHALMOLOGY | 7 | 1,777 | 0.4% | (310) 543-2611 |
| 56 | SAN FRANCISCO EYE INSTITUTE INC | SAN FRANCISCO | CA | OPHTHALMOLOGY | 10 | 1,767 | 0.4% | (415) 421-8667 |
| 57 | DIGNITY HEALTH MEDICAL FOUNDATION | FOLSOM | CA | DIAGNOSTIC RADIOLOGY | 1197 | 1,762 | 0.4% | (916) 983-7476 |
| 58 | THOMAS S TOOMA M D A PROFESSIONAL CORPORATION | SAN DIEGO | CA | OPTOMETRY | 33 | 1,735 | 0.3% | (858) 278-9900 |
| 59 | BEVERLY HILLS INSTITUTE OF OPHTHALMOLOGY | BEVERLY HILLS | CA | OPHTHALMOLOGY | 4 | 1,734 | 0.3% | (310) 273-2333 |
| 60 | CALIFORNIA EYE CLINIC | ANTIOCH | CA | OPTOMETRY | 9 | 1,717 | 0.3% | (925) 754-2300 |
| 61 | NORTHRIDGE EYE CARE, A PROFESSIONAL CORPORATION | RED BLUFF | CA | OPHTHALMOLOGY | 4 | 1,685 | 0.3% | (530) 529-1750 |
| 62 | JONATHAN M. DAVIDORF, M.D. INC. | WEST HILLS | CA | OPHTHALMOLOGY | 6 | 1,681 | 0.3% | (818) 883-0112 |
| 63 | EAST BAY OPHTHALMOLOGY | PINOLE | CA | OPHTHALMOLOGY | 3 | 1,665 | 0.3% | (510) 724-1768 |
| 64 | VALLEY EYE INSTITUTE INC | ENCINO | CA | OPHTHALMOLOGY | 5 | 1,659 | 0.3% | (818) 906-2929 |
| 65 | MERCY EYE CARE MEDICAL GROUP INC | MONTEBELLO | CA | OPHTHALMOLOGY | 5 | 1,640 | 0.3% | (562) 866-1803 |
| 66 | STEVEN G KHWARG MD PROF CORP | LOS ANGELES | CA | OPHTHALMOLOGY | 3 | 1,630 | 0.3% | (213) 484-1000 |
| 67 | STEVEN D ZELKO MD INC | SOLVANG | CA | OPHTHALMOLOGY | 2 | 1,526 | 0.3% | (805) 688-6612 |
| 68 | SOUTHERN CALIFORNIA EYE CONSULTANTS INC. | ORANGE | CA | OPHTHALMOLOGY | 6 | 1,525 | 0.3% | (714) 771-2020 |
| 69 | MOSAIC EYE SPECIALISTS PC | SAN DIEGO | CA | OPHTHALMOLOGY | 2 | 1,518 | 0.3% | (619) 226-1877 |
| 70 | EYE TREATMENT CENTER, AN INCORPORATED MEDICAL GROUP, INC | LONG BEACH | CA | OPHTHALMOLOGY | 5 | 1,502 | 0.3% | (562) 988-8668 |
| 71 | SF BAY EYE | ALAMEDA | CA | OPHTHALMOLOGY | 4 | 1,465 | 0.3% | (510) 522-0377 |
| 72 | BRADLEY J SANDLER MD INC. | FAIRFIELD | CA | OPHTHALMOLOGY | 2 | 1,440 | 0.3% | (707) 422-6500 |
| 73 | EYE SITE SACRAMENTO MEDICAL GROUP INC. | SACRAMENTO | CA | OPHTHALMOLOGY | 7 | 1,427 | 0.3% | 9164528105214 |
| 74 | FACULTY PHYSICIANS AND SURGEONS OF LLUSM | LOMA LINDA | CA | DIAGNOSTIC RADIOLOGY | 1317 | 1,401 | 0.3% | — |
| 75 | USC CARE MEDICAL GROUP INC | LOS ANGELES | CA | DIAGNOSTIC RADIOLOGY | 1374 | 1,399 | 0.3% | (800) 872-2273 |
| 76 | KATHLEEN J DENNIS-ZARATE MD A MEDICAL CORP | MONTROSE | CA | OPHTHALMOLOGY | 2 | 1,364 | 0.3% | (818) 249-6447 |
| 77 | WAYNE H MARTIN MD INC | DIAMOND BAR | CA | OPTOMETRY | 3 | 1,325 | 0.3% | (909) 860-6768 |
| 78 | ALAN M BERG MD INC AND ROBERT E FEINFIELD MD INC | BURBANK | CA | OPHTHALMOLOGY | 8 | 1,288 | 0.3% | (818) 845-3557 |
| 79 | KERRY K ASSIL MD INC | BEVERLY HILLS | CA | OPHTHALMOLOGY | 9 | 1,279 | 0.3% | (310) 651-2300 |
| 80 | MARSHBURN EYE CENTER INCORPORATED | WHITTIER | CA | OPHTHALMOLOGY | 5 | 1,142 | 0.2% | (562) 947-8681 |
| 81 | EYE SPECIALTIES MEDICAL GROUP INC. | CASTRO VALLEY | CA | OPHTHALMOLOGY | 3 | 1,106 | 0.2% | (510) 881-8823 |
| 82 | RICHARD H HAVUNJIAN MD A PROFESSIONAL CORPORATION | GLENDALE | CA | OPHTHALMOLOGY | 2 | 1,091 | 0.2% | (818) 548-5858 |
| 83 | PACIFIC EYE SPECIALISTS A PROFESSIONAL CORPORATION | DALY CITY | CA | OPHTHALMOLOGY | 2 | 1,088 | 0.2% | (650) 755-6900 |
| 84 | PASADENA EYE MEDICAL GROUP | PASADENA | CA | OPHTHALMOLOGY | 4 | 1,077 | 0.2% | (626) 796-5325 |
| 85 | EAST BAY EYE CENTERS MEDICAL CORPORATION | SAN RAMON | CA | OPHTHALMOLOGY | 6 | 1,077 | 0.2% | (925) 830-8823 |
| 86 | SOUTHERN CALIFORNIA PERMANENTE MEDICAL GROUP | LOS ANGELES | CA | INTERNAL MEDICINE | 11157 | 1,054 | 0.2% | (800) 954-8000 |
| 87 | EYE PHYSICIANS MEDICAL SURGICAL CENTER | CHULA VISTA | CA | OPHTHALMOLOGY | 10 | 1,054 | 0.2% | — |
| 88 | EAGLE ROCK MEDLINK GROUP INC | LOS ANGELES | CA | INTERNAL MEDICINE | 4 | 1,053 | 0.2% | (818) 439-2021 |
| 89 | VINCENT Q NGUYEN MD INC | SAN DIEGO | CA | OPHTHALMOLOGY | 3 | 1,048 | 0.2% | (858) 609-7100 |
| 90 | KENNETH C LOW MD A PROFESSIONAL CORPORATION | FREMONT | CA | OPHTHALMOLOGY | 2 | 1,041 | 0.2% | (510) 794-0660 |
| 91 | MEDICAL VISION TECHNOLOGY OPHTHALMOLOGY MEDICAL GROUP INC | SACRAMENTO | CA | OPHTHALMOLOGY | 9 | 1,030 | 0.2% | (916) 731-8040 |
| 92 | PETER J CORNELL M D INC | BEVERLY HILLS | CA | OPTOMETRY | 4 | 1,025 | 0.2% | (310) 274-9205 |
| 93 | JOHN D ZDRAL MD INC | FULLERTON | CA | OPHTHALMOLOGY | 3 | 1,002 | 0.2% | (714) 879-7372 |
| 94 | VISALIA EYE CENTER INC | VISALIA | CA | OPHTHALMOLOGY | 3 | 995 | 0.2% | (559) 733-4372 |
| 95 | SCOTT W BEEVE MD INC | GLENDALE | CA | OPHTHALMOLOGY | 2 | 990 | 0.2% | (818) 790-8001 |
| 96 | MID PENINSULA EYE PHYSICIANS AND SURGEONS MEDICAL GROUP | SAN MATEO | CA | OPHTHALMOLOGY | 6 | 990 | 0.2% | (650) 342-4595 |
| 97 | MILAUSKAS EYE INSTITUTE MEDICAL GROUP II, INC. | RANCHO MIRAGE | CA | OPTOMETRY | 10 | 985 | 0.2% | (760) 340-3937 |
| 98 | ORANGE COUNTY OPHTHALMOLOGY MEDICAL GROUP. | GARDEN GROVE | CA | OPHTHALMOLOGY | 4 | 977 | 0.2% | (714) 534-8373 |
| 99 | ARTHUR ASTORINO JR MD, A MEDICAL CORPORATION | NEWPORT BEACH | CA | OPHTHALMOLOGY | 5 | 976 | 0.2% | (949) 645-2250 |
| 100 | OROHEALTH CORPORATION A NON PROFIT HEALTHCARE SYSTEM | OROVILLE | CA | INTERNAL 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 →