	observed	calculated	calculated	calculated	calculated	calculated	reported
2024	8,131	$40,035,029	-14%	798,991	23	138	0.00
2023	9,976	$46,700,410	+5% (2023 changed hospital and observation visit codes)	931,742	25	150	0.00
2022	14,278	$44,401,744	+8%	879,838	30	175	0.00
2021	13,151	$41,215,387	– (Not compared: 2021 changed office visit values)	806,032	30	183	0.00
2020	5,821	$21,084,711	first year in data	416,737	28	198

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	938	$12,146,445	241,702	32	758
New York	724	$5,653,111	112,608	32	176
Illinois	468	$3,769,173	75,048	32	178
New Jersey	259	$3,764,668	74,982	26	456
Texas	415	$2,226,351	44,397	26	225
North Carolina	587	$1,893,771	37,879	22	84
Florida	192	$1,559,951	31,105	27	686
Tennessee	600	$1,387,364	27,847	25	127
Pennsylvania	331	$1,129,617	22,520	22	102
South Carolina	394	$1,019,372	20,524	33	123
Georgia	483	$891,391	17,936	24	93
Alabama	311	$809,328	16,236	31	129
Massachusetts	268	$711,185	14,169	23	141
Missouri	232	$670,463	13,402	33	123
Arizona	53	$646,767	12,878	22	2,012

Not listed: 3 billers with an armed-forces or unknown state code (AE, AP); they are in the national totals.

Not listed: 5 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	700	$8,906,285	177,339	35
Los Angeles-Long Beach-Anaheim, CA	311	$7,132,244	141,903	44
Chicago-Naperville-Elgin, IL-IN	346	$3,451,715	68,706	33
San Francisco-Oakland-Fremont, CA	153	$1,432,501	28,496	33
Riverside-San Bernardino-Ontario, CA	38	$1,184,565	23,564	28
Dallas-Fort Worth-Arlington, TX	87	$1,054,541	21,022	28
Oxnard-Thousand Oaks-Ventura, CA	25	$939,785	18,692	27
Miami-Fort Lauderdale-West Palm Beach, FL	55	$856,646	17,063	27
Philadelphia-Camden-Wilmington, PA-NJ-DE-MD	117	$674,613	13,431	26
Phoenix-Mesa-Chandler, AZ	28	$614,776	12,238	24
Atlanta-Sandy Springs-Roswell, GA	289	$541,757	10,804	23
Charlotte-Concord-Gastonia, NC-SC	339	$537,321	10,801	22
St. Louis, MO-IL	128	$516,584	10,321	60
Boston-Cambridge-Newton, MA-NH	183	$500,818	9,979	22
Houston-Pasadena-The Woodlands, TX	73	$444,542	8,856	30

Source: CMS Medicare Physician & Other Practitioners public use files (Original Medicare Part B fee-for-service). The 89 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 87635 nationally

Clinical Laboratory accounts for 61% of payment for 87635 nationally in 2023, across 14 specialties on claims.

	observed	calculated	calculated	calculated	calculated	calculated
Clinical Laboratory	575	5.8%	$28,549,973	61%	568,219	988
Nurse Practitioner	3,108	31%	$5,407,541	12%	108,402	35
Family Practice	2,298	23%	$4,412,714	9.4%	88,486	39
Physician Assistant	2,154	22%	$3,853,180	8.3%	77,032	36
Internal Medicine	1,009	10%	$2,150,119	4.6%	43,109	43
Emergency Medicine	444	4.5%	$996,749	2.1%	19,902	45
Pathology	32	0.32%	$380,506	0.81%	7,592	237
Pulmonary Disease	64	0.64%	$151,200	0.32%	3,028	47
General Practice	64	0.64%	$130,078	0.28%	2,604	41
Gastroenterology	46	0.46%	$104,575	0.22%	2,100	46
Geriatric Medicine	22	0.22%	$59,079	0.13%	1,175	53
Cardiology	22	0.22%	$49,364	0.11%	985	45
Urology	13	0.13%	$16,442	0.04%	333	26
Hospitalist	11	0.11%	$16,341	0.03%	327	30

Not listed: 36 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 87635 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