	observed	calculated	calculated	calculated	calculated	calculated	reported
2024	7,593	$67,933,461	+8%	507,291	39	211	2.20
2023	7,242	$62,836,962	+9%	443,661	36	196	2.20
2022	6,911	$57,456,029	+4%	394,672	34	179	2.20
2021	6,627	$55,204,826	+17%	357,865	32	170	2.20
2020	6,194	$47,252,237	first year in data	305,038	29	155	2.20

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
New York	500	$8,608,605	46,905	52	305
California	693	$6,581,926	39,998	33	186
Florida	503	$5,971,497	31,735	36	211
Texas	497	$4,130,373	29,559	38	189
Massachusetts	278	$3,413,470	24,425	52	269
Pennsylvania	339	$2,983,030	23,980	40	233
New Jersey	209	$2,689,974	13,010	40	186
Maryland	174	$2,431,910	12,187	45	197
Illinois	387	$2,351,304	21,512	39	147
Virginia	199	$1,990,026	15,234	41	277
Arizona	120	$1,938,742	11,520	45	346
North Carolina	233	$1,634,232	14,173	44	166
Minnesota	255	$1,539,921	10,635	29	115
Georgia	186	$1,505,239	14,502	44	222
Michigan	229	$1,149,897	12,689	36	150

Not listed: 7 billers with an armed-forces or unknown state code (AA, 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 2023.

Top metro areas

	observed	calculated	calculated	calculated
New York-Newark-Jersey City, NY-NJ	465	$9,208,305	47,974	60
Boston-Cambridge-Newton, MA-NH	230	$2,745,427	20,028	52
Los Angeles-Long Beach-Anaheim, CA	222	$2,733,989	15,899	35
Philadelphia-Camden-Wilmington, PA-NJ-DE-MD	199	$2,615,045	16,780	55
Chicago-Naperville-Elgin, IL-IN	313	$1,952,849	17,995	41
Baltimore-Columbia-Towson, MD	115	$1,776,838	9,211	63
Dallas-Fort Worth-Arlington, TX	170	$1,545,833	9,950	43
Jacksonville, FL	64	$1,508,893	6,767	57
Washington-Arlington-Alexandria, DC-VA-MD-WV	104	$1,490,164	7,860	47
Phoenix-Mesa-Chandler, AZ	80	$1,343,217	7,919	59
Atlanta-Sandy Springs-Roswell, GA	104	$1,051,567	10,475	80
Miami-Fort Lauderdale-West Palm Beach, FL	103	$944,101	6,217	31
Houston-Pasadena-The Woodlands, TX	150	$834,620	8,290	36
San Francisco-Oakland-Fremont, CA	87	$820,601	5,297	41
San Diego-Chula Vista-Carlsbad, CA	95	$772,183	5,116	37

Source: CMS Medicare Physician & Other Practitioners public use files (Original Medicare Part B fee-for-service). The 95 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 74183 nationally

Diagnostic Radiology accounts for 89% of payment for 74183 nationally in 2023, across 7 specialties on claims.

	observed	calculated	calculated	calculated	calculated	calculated
Diagnostic Radiology	6,647	92%	$55,929,251	89%	410,526	62
Independent Diagnostic Testing Facility (IDTF)	365	5.0%	$5,287,197	8.4%	21,985	60
Interventional Radiology	107	1.5%	$632,632	1.0%	4,688	44
Nuclear Medicine	17	0.23%	$353,886	0.56%	2,197	129
Hematology-Oncology	22	0.30%	$123,117	0.20%	701	32
Internal Medicine	11	0.15%	$102,755	0.16%	698	63
Family Practice	13	0.18%	$60,408	0.10%	409	31

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 74183 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