	observed	calculated	calculated	calculated	calculated	calculated	reported
2024	282	$25,748,428	-4%	8,627	20	84	6.39
2023	289	$26,857,626	-5%	8,839	20	83	6.39
2022	291	$28,212,271	-20%	9,273	22	80	6.39
2021	343	$35,233,207	-28%	10,888	22	83	6.39
2020	425	$48,618,590	first year in data	15,142	23	101	6.39

Source: CMS Medicare Physician & Other Practitioners public use files (Original Medicare Part B fee-for-service). Data years 2020–2024.

By state

	observed	calculated	calculated	calculated	calculated
California	33	$4,271,371	1,188	19	96
New Jersey	16	$3,159,772	935	33	177
New York	22	$2,991,203	794	25	78
Texas	34	$2,188,536	795	16	55
North Carolina	14	$1,623,997	529	17	91
Illinois	14	$1,426,704	505	19	106
Arizona	12	$1,272,220	428	33	71
Florida	17	$1,254,473	459	24	53
Virginia	12	$828,703	279	19	50
Georgia	11	$598,635	175	13	28
Ohio	11	$496,008	179	16	22

Not listed: 27 states with fewer than 11 billers (small cells).

Source: CMS Medicare Physician & Other Practitioners public use files (Original Medicare Part B fee-for-service). Providers placed by practice address. Data year 2023.

Top metro areas

	observed	calculated	calculated	calculated
New York-Newark-Jersey City, NY-NJ	30	$4,061,401	1,062	26
Philadelphia-Camden-Wilmington, PA-NJ-DE-MD	15	$2,940,695	966	45
Los Angeles-Long Beach-Anaheim, CA	14	$2,433,055	680	37
Washington-Arlington-Alexandria, DC-VA-MD-WV	11	$829,162	289	19
Houston-Pasadena-The Woodlands, TX	14	$551,335	252	15

Source: CMS Medicare Physician & Other Practitioners public use files (Original Medicare Part B fee-for-service). The 5 areas with the most payment among those with at least 11 billers; non-metro parts of each state are one area. Data year 2023.

Specialties billing 36903 nationally

Ambulatory Surgical Center accounts for 52% of payment for 36903 nationally in 2023, across 6 specialties on claims.

	observed	calculated	calculated	calculated	calculated	calculated
Ambulatory Surgical Center	69	24%	$14,002,914	52%	2,610	38
Nephrology	82	28%	$4,280,110	16%	2,214	27
Vascular Surgery	48	17%	$3,389,684	13%	1,208	25
Interventional Radiology	47	16%	$2,953,798	11%	1,492	32
Diagnostic Radiology	14	4.8%	$1,448,776	5.4%	690	49
General Surgery	16	5.5%	$510,547	1.9%	360	23

Not listed: 5 specialties with fewer than 11 billers (small cells).

Source: CMS Medicare Physician & Other Practitioners public use files (Original Medicare Part B fee-for-service). Provider-level lines (fewer than 11 beneficiaries suppressed by CMS); specialty is the provider type on claims. Data year 2023.

Top billers of 36903 nationally

Named top billers are a Pro figure, and Pro is not available to buy, so this list is not shown to any account. The counts and totals by state, metro area and specialty on this page are free.

Original Medicare Part B fee-for-service only; CMS suppresses provider lines with fewer than 11 beneficiaries. How these figures are computed · Limitations