	observed	calculated	calculated	calculated	calculated	calculated	reported
2024	1,421	$39,649,683	-51%	285,069	28	384	0.00
2023	1,141	$80,656,525	+567%	577,583	27	406	0.00
2022	948	$12,099,935	+194%	86,499	25	260	0.00
2021	345	$4,114,908	+1774%	28,934	26	251	0.00
2020	21	$219,573	first year in data	1,562	23	437

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
Illinois	54	$30,091,525	215,288	49	28,702
Texas	69	$27,887,223	199,577	40	558
California	185	$11,457,245	81,984	19	1,343
New York	66	$2,071,661	14,858	34	924
New Jersey	25	$1,102,234	7,892	45	347
North Carolina	73	$968,386	6,959	33	169
South Carolina	103	$965,714	7,015	44	174
Arizona	40	$855,132	6,122	22	750
Maryland	15	$592,427	4,310	131	1,039
Ohio	12	$545,250	3,953	45	1,553
Indiana	92	$507,182	3,661	28	76
Florida	25	$416,796	3,010	44	321
Michigan	18	$414,780	2,971	81	519
Oklahoma	13	$399,351	2,860	31	1,102
Wisconsin	23	$290,162	2,079	15	142

Not listed: 21 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
Chicago-Naperville-Elgin, IL-IN	55	$30,100,602	215,368	52
Dallas-Fort Worth-Arlington, TX	13	$27,366,275	195,829	185
Los Angeles-Long Beach-Anaheim, CA	48	$8,874,677	63,496	31
New York-Newark-Jersey City, NY-NJ	57	$2,820,843	20,210	35
San Jose-Sunnyvale-Santa Clara, CA	25	$1,127,316	8,066	16
San Francisco-Oakland-Fremont, CA	36	$951,504	6,815	18
Columbia, SC	95	$834,994	6,075	44
Detroit-Warren-Dearborn, MI	13	$390,738	2,799	110
Evansville, IN	68	$288,741	2,074	26
Houston-Pasadena-The Woodlands, TX	11	$227,299	1,628	71
Kansas City, MO-KS	34	$159,005	1,145	25
Asheville, NC	18	$142,743	1,028	49
Tucson, AZ	34	$116,209	835	21
Durham-Chapel Hill, NC	15	$107,800	775	33
Kiryas Joel-Poughkeepsie-Newburgh, NY	13	$105,021	758	68

Source: CMS Medicare Physician & Other Practitioners public use files (Original Medicare Part B fee-for-service). The 23 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 87637 nationally

Clinical Laboratory accounts for 91% of payment for 87637 nationally in 2023, across 6 specialties on claims.

	observed	calculated	calculated	calculated	calculated	calculated
Clinical Laboratory	217	19%	$73,020,607	91%	522,557	2,408
Emergency Medicine	63	5.5%	$1,454,793	1.8%	10,462	166
Nurse Practitioner	301	26%	$1,394,701	1.7%	10,067	33
Family Practice	246	22%	$1,041,434	1.3%	7,544	31
Physician Assistant	203	18%	$892,223	1.1%	6,421	32
Internal Medicine	72	6.3%	$788,448	0.98%	5,676	79

Not listed: 16 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 87637 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