	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	43	$6,935,534	1,752	25	101
New York	32	$5,902,001	1,281	32	93
Texas	49	$5,183,339	1,750	23	105
North Carolina	15	$3,611,401	946	40	152
Florida	35	$3,054,500	1,045	21	78
New Jersey	13	$2,632,662	676	34	128
Virginia	18	$2,536,945	731	27	106
Georgia	29	$2,310,681	731	19	62
Illinois	14	$1,722,055	442	21	79
Pennsylvania	17	$1,629,337	608	29	71
Louisiana	13	$1,155,454	522	20	122
Maryland	11	$1,062,964	331	34	47
Alabama	12	$803,188	319	18	60

Not listed: 29 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 2020.

Top metro areas

	observed	calculated	calculated	calculated
New York-Newark-Jersey City, NY-NJ	39	$7,397,913	1,657	30
Los Angeles-Long Beach-Anaheim, CA	19	$3,640,548	921	24
Philadelphia-Camden-Wilmington, PA-NJ-DE-MD	16	$2,343,669	711	33
Washington-Arlington-Alexandria, DC-VA-MD-WV	11	$1,499,285	388	34
Houston-Pasadena-The Woodlands, TX	16	$1,330,295	571	26
Dallas-Fort Worth-Arlington, TX	13	$1,007,685	324	20
Atlanta-Sandy Springs-Roswell, GA	16	$916,935	291	16
Miami-Fort Lauderdale-West Palm Beach, FL	12	$762,511	310	19

Source: CMS Medicare Physician & Other Practitioners public use files (Original Medicare Part B fee-for-service). The 8 areas with the most payment among those with at least 11 billers; non-metro parts of each state are one area. Data year 2020.

Specialties billing 36903 nationally

Ambulatory Surgical Center accounts for 35% of payment for 36903 nationally in 2020, across 6 specialties on claims.

	observed	calculated	calculated	calculated	calculated	calculated
Ambulatory Surgical Center	76	18%	$17,216,122	35%	3,428	45
Nephrology	115	27%	$11,461,475	24%	4,206	37
Interventional Radiology	60	14%	$6,513,052	13%	2,535	42
Vascular Surgery	84	20%	$6,381,613	13%	2,152	26
Diagnostic Radiology	32	7.5%	$3,775,595	7.8%	1,222	38
General Surgery	32	7.5%	$1,459,858	3.0%	903	28

Not listed: 6 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 2020.

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