	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	293	$15,231,282	15,835	39	144
California	353	$13,610,548	16,440	37	112
Texas	256	$11,137,943	12,398	37	118
New York	244	$7,208,994	10,795	32	120
Arizona	96	$5,335,988	5,169	51	112
Pennsylvania	206	$3,800,765	8,095	32	86
Illinois	153	$3,533,593	6,332	36	83
Ohio	156	$3,200,943	5,856	36	75
Maryland	74	$3,153,169	3,861	41	106
New Jersey	84	$2,926,255	4,056	36	122
Virginia	79	$2,786,216	4,512	52	109
Michigan	127	$2,696,313	4,662	33	71
North Carolina	131	$2,687,633	5,243	33	82
Georgia	111	$2,670,852	4,340	34	91
Washington	91	$2,591,771	3,361	32	72

Not listed: 5 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	223	$7,970,436	11,089	37
Phoenix-Mesa-Chandler, AZ	69	$3,984,505	3,885	53
Los Angeles-Long Beach-Anaheim, CA	118	$3,564,586	5,415	36
Dallas-Fort Worth-Arlington, TX	58	$3,434,142	2,988	43
Chicago-Naperville-Elgin, IL-IN	119	$2,858,403	4,845	34
Miami-Fort Lauderdale-West Palm Beach, FL	68	$2,432,420	3,549	33
Philadelphia-Camden-Wilmington, PA-NJ-DE-MD	110	$2,190,609	4,952	38
Houston-Pasadena-The Woodlands, TX	102	$2,159,457	4,078	31
Washington-Arlington-Alexandria, DC-VA-MD-WV	54	$2,117,820	2,784	45
Tampa-St. Petersburg-Clearwater, FL	45	$1,840,611	2,075	39
Austin-Round Rock-San Marcos, TX	19	$1,747,062	1,381	63
Baltimore-Columbia-Towson, MD	47	$1,740,557	2,313	42
Boston-Cambridge-Newton, MA-NH	101	$1,737,543	3,995	33
San Diego-Chula Vista-Carlsbad, CA	46	$1,481,301	1,917	32
Jacksonville, FL	39	$1,432,989	1,671	34

Source: CMS Medicare Physician & Other Practitioners public use files (Original Medicare Part B fee-for-service). The 60 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 77301 nationally

Radiation Oncology accounts for 97% of payment for 77301 nationally in 2023, across 3 specialties on claims.

	observed	calculated	calculated	calculated	calculated	calculated
Radiation Oncology	3,759	99%	$114,742,870	97%	169,306	45
Radiation Therapy Center	21	0.55%	$2,388,442	2.0%	2,176	104
Diagnostic Radiology	24	0.63%	$654,911	0.55%	886	37

Not listed: 6 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 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