	observed	calculated	calculated	calculated	calculated	calculated	reported
2024	12,074	$54,753,774	-7%	618,679	26	163	1.92
2023	14,283	$59,082,491	-33%	703,493	25	154	1.92
2022	21,912	$88,125,583	-36%	1,059,539	25	151	1.92
2021	32,989	$138,096,626	-33%	1,667,841	27	157	1.92
2020	59,497	$207,207,145	first year in data	2,763,732	27	142	0.75

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
Massachusetts	6,246	$30,569,978	392,654	39	198
California	5,769	$26,980,309	325,708	30	183
New York	3,718	$12,886,306	161,144	25	135
Illinois	3,186	$11,776,374	150,574	29	139
Texas	2,975	$10,024,457	141,406	25	149
Pennsylvania	3,421	$9,870,716	131,465	25	112
Florida	2,028	$8,505,422	107,067	28	169
Maryland	1,859	$7,202,582	89,289	29	148
North Carolina	2,451	$6,890,033	99,129	25	115
Ohio	2,563	$6,305,832	93,684	24	105
Minnesota	2,254	$5,892,864	80,509	25	96
New Jersey	1,320	$5,046,946	59,305	25	130
Michigan	1,628	$4,950,655	70,285	23	123
Virginia	1,491	$4,707,059	64,917	26	133
Arizona	1,202	$4,420,493	61,577	29	168

Not listed: 7 billers with an armed-forces or unknown state code (AE, AP, XX, ZZ); they are in the national totals.

Not listed: 2 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
Boston-Cambridge-Newton, MA-NH	4,908	$23,590,633	303,193	39
New York-Newark-Jersey City, NY-NJ	2,908	$11,978,516	135,968	26
Chicago-Naperville-Elgin, IL-IN	2,777	$10,881,965	137,796	30
Los Angeles-Long Beach-Anaheim, CA	1,680	$8,010,473	95,732	30
Philadelphia-Camden-Wilmington, PA-NJ-DE-MD	1,853	$6,074,655	78,461	27
Minneapolis-St. Paul-Bloomington, MN-WI	1,614	$4,569,617	60,879	26
San Francisco-Oakland-Fremont, CA	997	$4,489,238	51,010	29
Providence-Warwick, RI-MA	867	$4,317,515	54,196	37
Baltimore-Columbia-Towson, MD	1,174	$4,161,729	52,212	27
Washington-Arlington-Alexandria, DC-VA-MD-WV	930	$3,740,874	43,982	28
Phoenix-Mesa-Chandler, AZ	746	$2,711,524	36,427	27
Miami-Fort Lauderdale-West Palm Beach, FL	615	$2,691,277	32,863	27
Dallas-Fort Worth-Arlington, TX	828	$2,583,609	37,421	25
Detroit-Warren-Dearborn, MI	733	$2,537,363	34,406	24
San Diego-Chula Vista-Carlsbad, CA	706	$2,406,171	29,986	29

Source: CMS Medicare Physician & Other Practitioners public use files (Original Medicare Part B fee-for-service). The 100 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 99443 nationally

Internal Medicine accounts for 23% of payment for 99443 nationally in 2020, across 62 specialties on claims.

	observed	calculated	calculated	calculated	calculated	calculated
Internal Medicine	11,704	20%	$47,177,019	23%	612,601	52
Family Practice	8,168	14%	$24,965,688	12%	334,246	41
Nurse Practitioner	8,918	15%	$24,069,743	12%	374,894	42
Cardiology	3,945	6.6%	$17,210,952	8.3%	217,720	55
Psychiatry	2,095	3.5%	$10,275,855	5.0%	136,193	65
Endocrinology	2,076	3.5%	$9,292,378	4.5%	117,685	57
Nephrology	2,018	3.4%	$8,151,613	3.9%	102,234	51
Neurology	2,525	4.2%	$7,549,495	3.6%	98,469	39
Physician Assistant	2,818	4.7%	$6,597,922	3.2%	103,193	37
Pulmonary Disease	1,774	3.0%	$6,317,102	3.0%	79,522	45
Gastroenterology	2,044	3.4%	$5,824,660	2.8%	73,151	36
Hematology-Oncology	1,549	2.6%	$5,574,977	2.7%	73,063	47
Rheumatology	1,248	2.1%	$4,631,927	2.2%	59,793	48
Interventional Cardiology	734	1.2%	$2,984,542	1.4%	37,723	51
Urology	821	1.4%	$2,908,567	1.4%	35,650	43

Not listed: 12 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 99443 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