Who bills the most Detection test by nucleic acid for organism, amplified probe technique (87798) to Medicare in California?
Medicare Part B FFS · CY2024 · as published by CMS13 physician groups billed Detection test by nucleic acid for organism, amplified probe technique (87798) to Medicare fee-for-service in California in 2024; the top five named groups hold 90% of that volume, and independent (non-hospital-affiliated) groups deliver 0%.
87798 — Detection test by nucleic acid for organism, amplified probe technique · 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 | 87798 svcs | Share* | Phone |
|---|---|---|---|---|---|---|---|---|
| 1 | COAST UROLOGICAL MEDICAL GROUP, INC. | LOS ALAMITOS | CA | UROLOGY | 2 | 17,266 | 0.8% | (562) 430-0581 |
| 2 | COMPREHENSIVE UROLOGY MEDICAL GROUP | LOS ANGELES | CA | UROLOGY | 6 | 8,226 | 0.4% | (310) 278-8330 |
| 3 | EL CAMINO HEALTH MEDICAL NETWORK LLC | SAN JOSE | CA | PHYSICIAN ASSISTANT | 199 | 5,548 | 0.3% | (408) 871-3400 |
| 4 | FOOT AND ANKLE CONCEPTS INC | OXNARD | CA | PODIATRY | 10 | 4,824 | 0.2% | (805) 988-3338 |
| 5 | ICM MEDICAL GROUP INC | INGLEWOOD | CA | INTERNAL MEDICINE | 3 | 4,095 | 0.2% | (310) 855-0556 |
| 6 | STOCKDALE PODIATRY GROUP INC | BAKERSFIELD | CA | PODIATRY | 14 | 1,365 | 0.1% | (661) 832-1667 |
| 7 | SOUTHERN CALIFORNIA PERMANENTE MEDICAL GROUP | LOS ANGELES | CA | INTERNAL MEDICINE | 11157 | 1,157 | 0.1% | (800) 954-8000 |
| 8 | UROLOGICAL ASSOCIATES PC | MOLINE | CA | UROLOGY | 16 | 975 | 0.0% | (563) 359-2997 |
| 9 | PREMIER MEDICAL GROUP OF THE HUDSON VALLEY PC | POUGHKEEPSIE | CA | NURSE PRACTITIONER | 131 | 418 | 0.0% | — |
| 10 | BAY AREA FOOT CARE INC | SAN FRANCISCO | CA | PODIATRY | 125 | 338 | 0.0% | (415) 759-2014 |
| 11 | ABRAHAM ISHAAYA M D A PROFESSIONAL CORPORATION | LOS ANGELES | CA | INTERNAL MEDICINE | 2 | 128 | 0.0% | — |
| 12 | MANGROVE MEDICAL GROUP | CHICO | CA | NURSE PRACTITIONER | 9 | 12 | 0.0% | 5303450064268 |
| 13 | SUTTER BAY MEDICAL FOUNDATION | PALO ALTO | CA | INTERNAL MEDICINE | 3716 | 11 | 0.0% | (415) 600-1020 |
*Share of California's disclosed Medicare-FFS services for 87798, counted once per clinician. Volume is placed in the state it was billed from, so this page ranks the groups actually billing 87798 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 →