	observed	calculated	calculated	calculated	calculated	calculated	reported
2024	4,455	$36,802,608	+0%	283,548	55	141	3.14
2023	4,379	$36,750,203	+2%	277,778	56	139	3.14
2022	4,329	$36,116,031	-3%	272,370	54	139	3.14
2021	4,305	$37,108,320	-1%	275,978	56	140	3.14
2020	4,220	$37,416,358	first year in data	272,100	56	142	3.14

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	411	$3,766,653	26,556	59	141
Florida	345	$3,226,771	24,315	55	185
New York	285	$2,385,025	16,367	48	131
Texas	287	$2,335,553	18,343	53	150
Pennsylvania	242	$1,724,953	13,169	49	109
Illinois	173	$1,426,252	10,452	56	112
Ohio	184	$1,287,980	10,088	52	98
Massachusetts	155	$1,263,621	9,105	49	135
North Carolina	148	$1,179,124	9,309	57	116
Virginia	85	$1,104,373	8,336	93	183
New Jersey	99	$1,036,276	7,371	62	191
Arizona	105	$987,505	7,633	67	151
Michigan	141	$923,456	7,115	49	84
Georgia	124	$913,340	7,174	51	118
Maryland	85	$911,091	6,557	66	144

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	261	$2,556,020	17,205	57
Los Angeles-Long Beach-Anaheim, CA	137	$1,224,541	8,668	55
Chicago-Naperville-Elgin, IL-IN	132	$1,112,464	8,093	56
Philadelphia-Camden-Wilmington, PA-NJ-DE-MD	129	$1,032,089	7,565	53
Boston-Cambridge-Newton, MA-NH	129	$981,853	7,036	49
Houston-Pasadena-The Woodlands, TX	117	$761,557	6,050	46
Phoenix-Mesa-Chandler, AZ	77	$751,375	5,802	70
Miami-Fort Lauderdale-West Palm Beach, FL	83	$697,773	5,102	43
Washington-Arlington-Alexandria, DC-VA-MD-WV	59	$645,596	4,603	80
Baltimore-Columbia-Towson, MD	54	$605,082	4,323	66
Dallas-Fort Worth-Arlington, TX	60	$562,270	4,365	66
San Francisco-Oakland-Fremont, CA	56	$554,535	3,673	59
Seattle-Tacoma-Bellevue, WA	68	$493,270	3,571	53
Atlanta-Sandy Springs-Roswell, GA	75	$454,444	3,528	41
Detroit-Warren-Dearborn, MI	66	$423,420	3,211	47

Source: CMS Medicare Physician & Other Practitioners public use files (Original Medicare Part B fee-for-service). The 79 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 77263 nationally

Radiation Oncology accounts for 98% of payment for 77263 nationally in 2023, across 3 specialties on claims.

	observed	calculated	calculated	calculated	calculated	calculated
Radiation Oncology	4,287	98%	$36,147,624	98%	273,289	64
Diagnostic Radiology	39	0.89%	$280,630	0.76%	2,090	54
Dermatology	28	0.64%	$116,495	0.32%	877	31

Not listed: 10 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 77263 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