	observed	calculated	calculated	calculated	calculated	calculated	reported
2024	3,910	$122,471,322	+4%	185,078	38	110	7.99
2023	3,815	$118,059,038	+4%	172,743	36	106	7.99
2022	3,727	$113,312,887	+3%	162,089	35	103	7.99
2021	3,632	$110,024,451	+5%	149,896	33	95	7.99
2020	3,519	$105,074,826	first year in data	138,661	32	89	7.99

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
Florida	277	$15,358,543	14,254	37	137
California	323	$11,489,129	12,813	35	90
Texas	248	$10,808,089	11,319	34	108
New York	224	$6,153,666	8,151	29	83
Arizona	93	$4,941,343	4,511	40	109
Illinois	149	$3,650,736	5,938	34	79
Pennsylvania	180	$3,094,342	5,905	28	69
Maryland	71	$3,081,404	3,574	39	114
Ohio	147	$2,859,504	4,834	30	73
New Jersey	94	$2,814,838	3,687	29	86
Michigan	131	$2,609,510	4,421	29	69
Tennessee	73	$2,558,149	3,773	40	108
Washington	85	$2,484,820	3,085	31	81
Georgia	99	$2,460,187	3,625	32	89
Virginia	85	$2,432,485	4,102	43	94

Not listed: 6 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	225	$7,018,463	8,711	30
Phoenix-Mesa-Chandler, AZ	71	$3,798,487	3,493	40
Dallas-Fort Worth-Arlington, TX	54	$3,138,609	2,578	36
Los Angeles-Long Beach-Anaheim, CA	100	$2,840,162	3,996	35
Chicago-Naperville-Elgin, IL-IN	110	$2,839,003	4,450	33
Miami-Fort Lauderdale-West Palm Beach, FL	62	$2,455,645	2,810	32
Houston-Pasadena-The Woodlands, TX	99	$2,172,284	3,704	31
Washington-Arlington-Alexandria, DC-VA-MD-WV	53	$1,977,771	2,551	43
Philadelphia-Camden-Wilmington, PA-NJ-DE-MD	99	$1,874,431	3,551	28
Austin-Round Rock-San Marcos, TX	18	$1,833,214	1,365	65
Baltimore-Columbia-Towson, MD	48	$1,769,033	2,149	37
Orlando-Kissimmee-Sanford, FL	34	$1,625,373	1,692	34
Tampa-St. Petersburg-Clearwater, FL	42	$1,577,177	1,880	35
Boston-Cambridge-Newton, MA-NH	97	$1,520,501	3,700	28
North Port-Bradenton-Sarasota, FL	13	$1,485,945	1,059	64

Source: CMS Medicare Physician & Other Practitioners public use files (Original Medicare Part B fee-for-service). The 59 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 77301 nationally

Radiation Oncology accounts for 97% of payment for 77301 nationally in 2021, across 3 specialties on claims.

	observed	calculated	calculated	calculated	calculated	calculated
Radiation Oncology	3,569	98%	$106,670,687	97%	146,595	41
Radiation Therapy Center	23	0.63%	$2,407,537	2.2%	2,007	87
Diagnostic Radiology	28	0.77%	$703,575	0.64%	860	31

Not listed: 8 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 77301 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