	observed	calculated	calculated	calculated	calculated	calculated	reported
2024	7,815	$46,193,376	-2%	484,373	35	202	1.35
2023	7,875	$46,987,326	+2%	472,672	34	191	1.35
2022	7,918	$46,036,641	-5%	453,279	33	177	1.35
2021	8,119	$48,283,659	+9%	451,606	32	168	1.35
2020	8,064	$44,235,236	first year in data	412,818	30	152	1.35

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	757	$6,365,611	50,776	40	213
Florida	545	$4,593,552	36,280	34	227
New York	409	$3,886,780	29,795	41	218
Texas	501	$3,003,144	29,649	37	177
New Jersey	188	$1,839,782	12,082	36	212
Illinois	394	$1,536,655	17,199	30	109
Virginia	190	$1,496,804	15,255	56	250
Maryland	113	$1,487,415	10,943	64	268
Ohio	287	$1,485,421	20,362	29	178
Massachusetts	190	$1,382,048	12,722	42	235
Pennsylvania	295	$1,348,900	15,126	32	160
Arizona	128	$1,219,669	10,485	47	332
North Carolina	266	$1,202,050	14,472	38	161
Colorado	181	$1,097,428	11,310	39	224
Tennessee	262	$1,049,344	13,028	32	141

Not listed: 2 billers with an armed-forces or unknown state code (AA, AP); 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 2022.

Top metro areas

	observed	calculated	calculated	calculated
New York-Newark-Jersey City, NY-NJ	368	$4,213,030	29,961	48
Los Angeles-Long Beach-Anaheim, CA	265	$2,280,760	17,525	34
Chicago-Naperville-Elgin, IL-IN	305	$1,263,866	13,963	30
Philadelphia-Camden-Wilmington, PA-NJ-DE-MD	149	$1,239,447	9,729	48
Dallas-Fort Worth-Arlington, TX	146	$1,047,696	8,932	41
Boston-Cambridge-Newton, MA-NH	152	$1,027,418	9,621	41
Baltimore-Columbia-Towson, MD	67	$970,207	6,812	72
Miami-Fort Lauderdale-West Palm Beach, FL	104	$953,601	7,672	29
Phoenix-Mesa-Chandler, AZ	85	$937,947	7,843	56
Washington-Arlington-Alexandria, DC-VA-MD-WV	66	$847,788	6,482	67
San Diego-Chula Vista-Carlsbad, CA	93	$841,510	6,357	40
San Francisco-Oakland-Fremont, CA	98	$838,783	7,506	38
Cincinnati, OH-KY-IN	74	$800,289	10,284	36
Tampa-St. Petersburg-Clearwater, FL	85	$620,896	4,768	31
Denver-Aurora-Centennial, CO	83	$570,955	6,168	40

Source: CMS Medicare Physician & Other Practitioners public use files (Original Medicare Part B fee-for-service). The 96 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 73221 nationally

Diagnostic Radiology accounts for 71% of payment for 73221 nationally in 2022, across 11 specialties on claims.

	observed	calculated	calculated	calculated	calculated	calculated
Diagnostic Radiology	5,331	67%	$32,547,844	71%	349,125	65
Independent Diagnostic Testing Facility (IDTF)	709	9.0%	$6,659,068	14%	45,693	64
Orthopedic Surgery	1,309	17%	$4,970,744	11%	41,699	32
Sports Medicine	159	2.0%	$604,074	1.3%	5,255	33
Hand Surgery	138	1.7%	$414,632	0.90%	3,513	25
Family Practice	51	0.64%	$146,998	0.32%	1,276	25
Interventional Radiology	46	0.58%	$144,854	0.31%	1,506	33
Physician Assistant	55	0.69%	$132,768	0.29%	1,300	24
Rheumatology	20	0.25%	$94,741	0.21%	855	43
Physical Medicine and Rehabilitation	17	0.21%	$45,908	0.10%	367	22
Internal Medicine	11	0.14%	$29,575	0.06%	246	22

Not listed: 19 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 73221 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