	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	468	$7,995,616	38,251	44	285
Florida	423	$5,420,276	24,868	30	218
California	574	$5,278,649	28,911	29	154
Texas	442	$3,538,329	22,569	32	158
Massachusetts	291	$3,047,644	20,734	43	210
New Jersey	205	$2,514,776	11,011	34	154
Pennsylvania	307	$2,482,022	19,365	40	199
Maryland	172	$2,212,435	10,346	43	147
Virginia	204	$2,079,546	14,467	43	217
Illinois	325	$1,837,893	15,985	35	140
Arizona	112	$1,761,881	9,866	37	290
Minnesota	216	$1,482,724	9,048	30	112
North Carolina	204	$1,397,712	11,035	36	154
Georgia	175	$1,274,743	12,093	40	205
Michigan	234	$1,056,333	11,325	33	140

Not listed: 3 billers with an armed-forces or unknown state code (AA, 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 2021.

Top metro areas

	observed	calculated	calculated	calculated
New York-Newark-Jersey City, NY-NJ	442	$8,661,599	39,928	52
Philadelphia-Camden-Wilmington, PA-NJ-DE-MD	189	$2,400,080	15,126	51
Boston-Cambridge-Newton, MA-NH	237	$2,368,461	16,970	43
Los Angeles-Long Beach-Anaheim, CA	186	$2,212,229	11,994	33
Baltimore-Columbia-Towson, MD	111	$1,618,172	7,527	52
Chicago-Naperville-Elgin, IL-IN	263	$1,552,244	13,810	36
Washington-Arlington-Alexandria, DC-VA-MD-WV	106	$1,415,304	7,274	52
Dallas-Fort Worth-Arlington, TX	147	$1,402,975	7,801	36
Phoenix-Mesa-Chandler, AZ	76	$1,273,323	7,183	49
Jacksonville, FL	49	$1,246,927	4,899	45
Atlanta-Sandy Springs-Roswell, GA	95	$834,817	8,572	67
Tampa-St. Petersburg-Clearwater, FL	77	$779,326	4,005	29
Rochester, MN	48	$732,076	3,169	53
Orlando-Kissimmee-Sanford, FL	54	$729,447	3,669	53
San Diego-Chula Vista-Carlsbad, CA	87	$725,790	3,833	27

Source: CMS Medicare Physician & Other Practitioners public use files (Original Medicare Part B fee-for-service). The 92 areas with the most payment among those with at least 11 billers; non-metro parts of each state are one area. Data year 2021.

Specialties billing 74183 nationally

Diagnostic Radiology accounts for 89% of payment for 74183 nationally in 2021, across 8 specialties on claims.

	observed	calculated	calculated	calculated	calculated	calculated
Diagnostic Radiology	6,102	92%	$49,193,479	89%	332,332	54
Independent Diagnostic Testing Facility (IDTF)	322	4.9%	$4,750,836	8.6%	17,615	55
Interventional Radiology	95	1.4%	$532,963	0.97%	3,498	37
Nuclear Medicine	18	0.27%	$214,325	0.39%	1,518	84
Hematology-Oncology	13	0.20%	$73,925	0.13%	324	25
Internal Medicine	11	0.17%	$73,832	0.13%	433	39
Gastroenterology	12	0.18%	$65,634	0.12%	306	26
Family Practice	14	0.21%	$58,167	0.11%	319	23

Not listed: 15 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 2021.

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