	observed	calculated	calculated	calculated	calculated	calculated
2024	2,208	$33,597,297	+3%	874,498	31	1,273
2023	2,349	$32,554,343	+3%	847,502	30	1,155
2022	2,351	$31,458,056	-4%	812,715	32	1,139
2021	2,532	$32,642,040	+4%	833,311	32	1,037
2020	2,500	$31,315,226	first year in data	804,191	33	1,027

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
Texas	238	$4,080,234	106,218	31	1,178
California	138	$4,050,563	105,381	121	2,534
New Jersey	45	$3,752,719	97,592	72	7,322
New York	135	$2,349,605	61,105	48	1,361
North Carolina	186	$2,214,881	57,674	22	205
Florida	110	$2,089,273	54,348	41	2,036
Ohio	33	$1,081,069	28,129	39	4,477
Kansas	55	$1,026,339	26,689	20	1,207
Oklahoma	26	$969,735	25,257	48	5,659
Illinois	95	$951,310	24,795	33	1,031
Massachusetts	71	$849,219	22,082	31	1,407
Alabama	82	$730,024	19,053	25	304
Arizona	29	$685,159	17,823	114	2,993
Washington	30	$682,161	17,828	63	2,152
Tennessee	144	$669,368	17,451	24	377

Not listed: 17 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	111	$5,887,357	153,093	74
Los Angeles-Long Beach-Anaheim, CA	88	$2,249,249	58,529	132
Dallas-Fort Worth-Arlington, TX	49	$1,654,524	43,061	49
Houston-Pasadena-The Woodlands, TX	24	$1,011,588	26,316	33
Austin-Round Rock-San Marcos, TX	15	$950,289	24,704	18
Chicago-Naperville-Elgin, IL-IN	82	$937,154	24,431	37
San Diego-Chula Vista-Carlsbad, CA	17	$875,360	22,772	123
Boston-Cambridge-Newton, MA-NH	50	$758,407	19,716	32
Phoenix-Mesa-Chandler, AZ	24	$678,811	17,658	140
Birmingham, AL	28	$635,879	16,583	31
Miami-Fort Lauderdale-West Palm Beach, FL	24	$617,213	16,047	80
Seattle-Tacoma-Bellevue, WA	16	$595,575	15,570	27
Detroit-Warren-Dearborn, MI	36	$471,186	12,257	62
Tulsa, OK	12	$461,737	12,034	37
Memphis, TN-MS-AR	46	$392,076	10,211	39

Source: CMS Medicare Physician & Other Practitioners public use files (Original Medicare Part B fee-for-service). The 37 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 83880 nationally

Clinical Laboratory accounts for 85% of payment for 83880 nationally in 2023, across 12 specialties on claims.

	observed	calculated	calculated	calculated	calculated	calculated
Clinical Laboratory	499	21%	$27,761,579	85%	722,286	1,447
Cardiology	312	13%	$1,368,526	4.2%	35,701	114
Internal Medicine	431	18%	$1,005,147	3.1%	26,297	61
Family Practice	425	18%	$605,500	1.9%	15,813	37
Nurse Practitioner	277	12%	$512,829	1.6%	13,395	48
Pathology	32	1.4%	$503,847	1.5%	13,167	411
Interventional Cardiology	98	4.2%	$254,813	0.78%	6,643	68
Physician Assistant	122	5.2%	$144,670	0.44%	3,780	31
Pulmonary Disease	30	1.3%	$70,394	0.22%	1,833	61
Endocrinology	12	0.51%	$66,472	0.20%	1,742	145
Clinical Cardiac Electrophysiology	16	0.68%	$37,589	0.12%	979	61
Emergency Medicine	42	1.8%	$31,468	0.10%	820	20

Not listed: 18 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 83880 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