	observed	calculated	calculated	calculated	calculated	calculated	reported
2024	624	$52,689,249	+11%	24,882	26	106	5.44
2023	564	$47,550,857	+42%	22,621	27	110	5.44
2022	447	$33,383,322	+52%	16,656	24	101	5.44
2021	306	$21,968,365	+21%	10,022	20	88	5.44
2020	248	$18,207,195	first year in data	7,758	20	75	5.44

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
Florida	82	$7,855,726	3,747	33	119
Arizona	27	$4,512,740	1,787	32	243
Arkansas	12	$3,548,019	1,746	33	675
Georgia	37	$3,406,001	1,480	31	89
Texas	43	$3,151,540	1,537	26	90
Mississippi	20	$2,832,375	1,291	42	193
Maryland	25	$2,609,349	1,018	38	81
California	25	$1,469,733	572	19	52
Pennsylvania	19	$1,427,037	608	25	62
Colorado	20	$1,381,452	656	30	66
Tennessee	26	$1,137,213	733	21	71
Kansas	14	$1,077,343	477	27	82
New York	13	$1,062,811	512	33	99
South Carolina	16	$1,031,554	479	23	71
Oklahoma	18	$974,960	556	19	74

Not listed: 22 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
Phoenix-Mesa-Chandler, AZ	25	$4,501,703	1,751	34
Atlanta-Sandy Springs-Roswell, GA	23	$2,865,095	1,126	34
Baltimore-Columbia-Towson, MD	14	$1,489,090	593	38
Philadelphia-Camden-Wilmington, PA-NJ-DE-MD	16	$1,216,862	506	23
Dallas-Fort Worth-Arlington, TX	16	$1,103,947	535	25
Tampa-St. Petersburg-Clearwater, FL	14	$1,015,956	522	26
New York-Newark-Jersey City, NY-NJ	14	$556,291	400	25

Source: CMS Medicare Physician & Other Practitioners public use files (Original Medicare Part B fee-for-service). The 7 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 64561 nationally

Ambulatory Surgical Center accounts for 91% of payment for 64561 nationally in 2023, across 3 specialties on claims.

	observed	calculated	calculated	calculated	calculated	calculated
Ambulatory Surgical Center	182	32%	$43,489,190	91%	11,676	64
Urology	266	47%	$2,675,786	5.6%	7,189	27
Obstetrics & Gynecology	85	15%	$1,048,522	2.2%	2,837	33

Not listed: 8 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 64561 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