	observed	calculated	calculated	calculated	calculated	calculated	reported
2024	10,926	$106,566,352	+40%	2,958,539	87	834	0.70
2023	8,395	$76,179,712	+72%	2,088,253	82	721	0.70
2022	6,204	$44,201,252	+96%	1,206,999	77	698	0.70
2021	4,346	$22,534,226	not in the 2020 file	780,294	71	659	0.54

Source: CMS Medicare Physician & Other Practitioners public use files (Original Medicare Part B fee-for-service). Data years 2021–2024.

By state

	observed	calculated	calculated	calculated	calculated
Texas	565	$3,933,894	109,739	87	636
New York	379	$3,847,390	95,614	77	1,006
California	354	$3,847,137	96,112	105	979
Florida	514	$3,477,330	96,729	77	792
Connecticut	37	$2,693,444	60,535	80	474
New Jersey	218	$1,944,446	47,179	111	625
Pennsylvania	229	$1,894,699	53,573	132	646
Mississippi	163	$1,881,014	55,510	99	1,536
North Carolina	385	$1,815,082	53,386	60	459
Illinois	282	$1,630,286	42,484	66	622
Tennessee	152	$1,532,387	44,523	86	1,216
Georgia	248	$1,507,034	43,838	87	653
Arizona	201	$1,289,191	37,190	91	612
Massachusetts	153	$1,276,581	33,401	129	657
Louisiana	246	$1,141,369	34,356	74	549

Not listed: 2 billers with an armed-forces or unknown state code (XX, ZZ); they are in the national totals.

Not listed: 13 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 2022.

Top metro areas

	observed	calculated	calculated	calculated
New York-Newark-Jersey City, NY-NJ	421	$4,729,957	114,314	80
Los Angeles-Long Beach-Anaheim, CA	129	$1,786,845	43,836	132
Chicago-Naperville-Elgin, IL-IN	266	$1,503,166	39,041	69
Jackson, MS	36	$1,134,913	33,363	701
Phoenix-Mesa-Chandler, AZ	149	$1,108,989	31,882	115
Houston-Pasadena-The Woodlands, TX	115	$931,325	25,034	104
Philadelphia-Camden-Wilmington, PA-NJ-DE-MD	126	$930,883	24,262	136
Dallas-Fort Worth-Arlington, TX	125	$695,917	19,837	63
Detroit-Warren-Dearborn, MI	83	$638,150	17,459	70
Charlotte-Concord-Gastonia, NC-SC	92	$611,134	17,415	57
Kingsport-Bristol, TN-VA	46	$599,205	17,174	114
Providence-Warwick, RI-MA	71	$593,510	15,358	146
Tampa-St. Petersburg-Clearwater, FL	119	$579,948	16,022	88
Boston-Cambridge-Newton, MA-NH	59	$548,052	14,432	122
Atlanta-Sandy Springs-Roswell, GA	86	$534,842	15,161	81

Source: CMS Medicare Physician & Other Practitioners public use files (Original Medicare Part B fee-for-service). The 81 areas with the most payment among those with at least 11 billers; non-metro parts of each state are one area. Data year 2022.

Specialties billing 99439 nationally

Internal Medicine accounts for 28% of payment for 99439 nationally in 2022, across 24 specialties on claims.

	observed	calculated	calculated	calculated	calculated	calculated
Internal Medicine	1,582	25%	$12,201,360	28%	327,728	207
Family Practice	1,666	27%	$10,347,047	23%	287,199	172
Gastroenterology	404	6.5%	$6,676,644	15%	180,819	448
Nurse Practitioner	1,105	18%	$4,197,129	9.5%	133,202	121
Geriatric Medicine	35	0.56%	$2,739,834	6.2%	61,514	1,758
Cardiology	202	3.3%	$1,912,993	4.3%	48,496	240
Nephrology	207	3.3%	$1,122,571	2.5%	30,262	146
Physician Assistant	277	4.5%	$778,725	1.8%	24,568	89
Urology	162	2.6%	$592,000	1.3%	16,131	100
General Practice	53	0.85%	$424,227	0.96%	11,426	216
Pain Management	32	0.52%	$356,031	0.81%	9,933	310
Anesthesiology	24	0.39%	$337,509	0.76%	9,006	375
Interventional Cardiology	66	1.1%	$308,299	0.70%	8,173	124
Neurology	25	0.40%	$307,556	0.70%	7,360	294
Interventional Pain Management	17	0.27%	$273,331	0.62%	7,342	432

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 2022.

Top billers of 99439 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