Who bills the most Destruction of polyp or growth of large bowel using a flexible endoscope (45388) to Medicare in California?
Medicare Part B FFS · CY2024 · as published by CMS17 physician groups billed Destruction of polyp or growth of large bowel using a flexible endoscope (45388) to Medicare fee-for-service in California in 2024; the top five named groups hold 56% of that volume, and independent (non-hospital-affiliated) groups deliver 0%.
45388 — Destruction of polyp or growth of large bowel using a flexible endoscope · 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 | 45388 svcs | Share* | Phone |
|---|---|---|---|---|---|---|---|---|
| 1 | PROVIDENCE MEDICAL FOUNDATION | FULLERTON | CA | PHYSICIAN ASSISTANT | 1455 | 92 | 5.8% | (714) 871-3006 |
| 2 | OM P. CHAURASIA, MD, INC. | MISSION VIEJO | CA | CERTIFIED REGISTERED NURSE ANESTHETIST (CRNA) | 7 | 88 | 5.5% | (949) 365-8836 |
| 3 | COMMUNITY FOUNDATION MEDICAL GROUP | FRESNO | CA | PHYSICIAN ASSISTANT | 292 | 75 | 4.7% | — |
| 4 | GENESIS HEALTHCARE PARTNERS PC | TORRANCE | CA | GASTROENTEROLOGY | 211 | 70 | 4.4% | (310) 534-8400 |
| 5 | DAVID YAMINI MD INC | SANTA MONICA | CA | GASTROENTEROLOGY | 2 | 63 | 3.9% | (310) 285-3005 |
| 6 | SONORA COMMUNITY HOSPITAL | SONORA | CA | PHYSICIAN ASSISTANT | 139 | 52 | 3.3% | — |
| 7 | SUTTER BAY MEDICAL FOUNDATION | PALO ALTO | CA | INTERNAL MEDICINE | 3716 | 44 | 2.8% | (415) 600-1020 |
| 8 | ADVENTIST HEALTH PHYSICIANS NETWORK | HANFORD | CA | NURSE PRACTITIONER | 651 | 42 | 2.6% | (559) 583-4695 |
| 9 | SUTTER VALLEY MEDICAL FOUNDATION | SACRAMENTO | CA | DIAGNOSTIC RADIOLOGY | 2420 | 41 | 2.6% | (916) 681-8852 |
| 10 | UC REGENTS | ORANGE | CA | INTERNAL MEDICINE | 296 | 28 | 1.8% | (714) 456-7002 |
| 11 | DIGNITY HEALTH MEDICAL FOUNDATION | FOLSOM | CA | DIAGNOSTIC RADIOLOGY | 1197 | 18 | 1.1% | (916) 983-7476 |
| 12 | PEYTON P BEROOKIM MD INC | BEVERLY HILLS | CA | GASTROENTEROLOGY | 2 | 14 | 0.9% | (310) 271-1122 |
| 13 | ARCH HEALTH PARTNERS INC | POWAY | CA | PHYSICIAN ASSISTANT | 161 | 13 | 0.8% | (858) 485-0050 |
| 14 | ARIEL MALAMUD A MEDICAL CORPORATION | LOS ANGELES | CA | GASTROENTEROLOGY | 2 | 13 | 0.8% | (213) 440-2040 |
| 15 | THE GASTRO GROUP INC | VICTORVILLE | CA | GASTROENTEROLOGY | 5 | 12 | 0.8% | 7608813377403 |
| 16 | EISENHOWER MEDICAL CENTER | RANCHO MIRAGE | CA | NURSE PRACTITIONER | 457 | 11 | 0.7% | (760) 340-3911 |
| 17 | GASTROENTEROLOGY AND LIVER INSTITUTE PC | ESCONDIDO | CA | GASTROENTEROLOGY | 2 | 11 | 0.7% | (760) 690-2800 |
*Share of California's disclosed Medicare-FFS services for 45388, counted once per clinician. Volume is placed in the state it was billed from, so this page ranks the groups actually billing 45388 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 →