	observed	calculated	calculated	calculated	calculated	calculated	reported
2024	4,522	$63,275,800	+47%	2,066,989	158	1,579	0.61
2023	3,715	$43,117,543	+58%	1,398,461	140	1,311	0.61
2022	2,718	$27,227,829	+116%	855,180	119	1,140	0.61
2021	1,745	$12,624,027	+259%	382,937	89	856	0.61
2020	703	$3,516,990	first year in data	103,565	59	559	0.61

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	512	$8,752,566	261,912	221	1,525
Texas	478	$5,162,272	174,551	177	1,305
Florida	322	$5,049,733	165,810	152	1,693
New York	259	$2,609,209	77,378	95	897
Georgia	187	$2,570,825	89,304	206	1,697
Maryland	147	$1,509,410	45,374	131	915
New Jersey	210	$1,326,518	39,796	82	657
Illinois	102	$1,250,977	40,428	240	1,100
Arizona	153	$1,213,635	41,462	123	778
Tennessee	90	$1,022,605	35,828	110	1,644
Pennsylvania	71	$936,932	28,121	103	720
North Carolina	92	$924,389	31,629	107	1,007
Michigan	90	$903,764	29,752	157	1,018
Virginia	151	$693,377	22,708	93	460
Connecticut	19	$679,646	21,635	436	4,338

Not listed: 12 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
Los Angeles-Long Beach-Anaheim, CA	276	$3,629,465	108,163	192
New York-Newark-Jersey City, NY-NJ	354	$3,064,558	89,972	88
Houston-Pasadena-The Woodlands, TX	132	$1,492,574	48,708	163
Washington-Arlington-Alexandria, DC-VA-MD-WV	145	$1,417,345	42,192	145
Dallas-Fort Worth-Arlington, TX	151	$1,349,278	45,901	149
North Port-Bradenton-Sarasota, FL	16	$1,311,332	43,552	234
Chicago-Naperville-Elgin, IL-IN	106	$1,304,026	42,734	201
San Francisco-Oakland-Fremont, CA	26	$1,174,961	32,379	376
Phoenix-Mesa-Chandler, AZ	108	$996,801	33,364	136
Philadelphia-Camden-Wilmington, PA-NJ-DE-MD	60	$985,855	29,492	109
Atlanta-Sandy Springs-Roswell, GA	68	$942,592	31,637	163
Miami-Fort Lauderdale-West Palm Beach, FL	80	$934,387	29,878	232
Macon-Bibb County, GA	33	$892,095	32,079	601
Riverside-San Bernardino-Ontario, CA	56	$717,197	23,220	198
Detroit-Warren-Dearborn, MI	58	$636,971	20,457	162

Source: CMS Medicare Physician & Other Practitioners public use files (Original Medicare Part B fee-for-service). The 56 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 99458 nationally

Internal Medicine accounts for 29% of payment for 99458 nationally in 2023, across 23 specialties on claims.

	observed	calculated	calculated	calculated	calculated	calculated
Internal Medicine	1,036	28%	$12,572,086	29%	399,003	385
Cardiology	529	14%	$10,659,361	25%	341,025	645
Family Practice	735	20%	$7,108,792	16%	230,517	314
Nephrology	277	7.5%	$3,263,745	7.6%	105,896	382
Nurse Practitioner	395	11%	$2,576,481	6.0%	100,496	254
Interventional Cardiology	116	3.1%	$968,725	2.2%	31,318	270
General Practice	36	0.97%	$835,531	1.9%	24,857	690
Pulmonary Disease	118	3.2%	$728,545	1.7%	23,055	195
Endocrinology	49	1.3%	$549,629	1.3%	17,088	349
Anesthesiology	24	0.65%	$545,789	1.3%	17,298	721
Clinical Cardiac Electrophysiology	45	1.2%	$480,810	1.1%	14,569	324
Emergency Medicine	31	0.83%	$452,068	1.0%	14,622	472
Physician Assistant	78	2.1%	$369,953	0.86%	14,097	181
Orthopedic Surgery	36	0.97%	$300,192	0.70%	9,949	276
Pain Management	16	0.43%	$210,951	0.49%	6,847	428

Not listed: 28 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 99458 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