	observed	calculated	calculated	calculated	calculated	calculated	reported
2024	16,278	$247,476,024	-1%	1,249,030	44	236	3.56
2023	16,427	$249,156,906	+3%	1,301,033	46	244	3.56
2022	16,256	$242,022,657	-4%	1,318,857	48	247	3.56
2021	16,397	$250,918,771	+20%	1,349,086	49	247	3.56
2020	15,662	$208,596,658	first year in data	1,145,510	44	225	3.56

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	1,457	$34,617,742	150,698	60	334
Florida	1,161	$21,761,791	111,305	51	314
Texas	1,164	$19,080,735	98,898	48	247
New York	1,222	$18,276,911	80,709	40	180
New Jersey	594	$12,635,124	55,743	61	274
Pennsylvania	843	$10,509,027	57,483	42	203
Maryland	372	$9,807,779	44,089	72	441
Illinois	670	$8,540,674	52,757	51	229
Arizona	349	$7,460,310	35,378	55	363
North Carolina	519	$7,101,689	38,684	44	250
Georgia	474	$7,003,746	35,550	44	266
Washington	373	$6,130,515	32,714	55	259
Ohio	669	$5,993,746	38,224	36	175
Massachusetts	462	$5,511,355	33,928	50	207
Virginia	396	$5,126,710	31,650	55	202

Not listed: 3 billers with an armed-forces or unknown state code (AP, ZZ); they are in the national totals.

Not listed: 3 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	1,320	$23,427,776	99,278	47
Los Angeles-Long Beach-Anaheim, CA	524	$11,709,544	49,619	56
Washington-Arlington-Alexandria, DC-VA-MD-WV	326	$7,962,159	36,348	67
Dallas-Fort Worth-Arlington, TX	378	$7,193,384	34,033	53
Philadelphia-Camden-Wilmington, PA-NJ-DE-MD	442	$7,107,486	35,001	49
Phoenix-Mesa-Chandler, AZ	268	$6,276,367	28,331	53
Chicago-Naperville-Elgin, IL-IN	500	$6,091,382	39,674	55
San Francisco-Oakland-Fremont, CA	175	$5,123,958	18,836	62
Atlanta-Sandy Springs-Roswell, GA	271	$4,676,874	21,847	49
Houston-Pasadena-The Woodlands, TX	294	$4,627,803	24,052	48
Baltimore-Columbia-Towson, MD	177	$4,009,179	18,550	57
Miami-Fort Lauderdale-West Palm Beach, FL	299	$3,965,759	19,716	31
Boston-Cambridge-Newton, MA-NH	359	$3,911,979	24,964	48
Seattle-Tacoma-Bellevue, WA	215	$3,528,929	18,087	53
San Jose-Sunnyvale-Santa Clara, CA	100	$2,959,227	11,104	53

Source: CMS Medicare Physician & Other Practitioners public use files (Original Medicare Part B fee-for-service). The 98 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 45380 nationally

Ambulatory Surgical Center accounts for 63% of payment for 45380 nationally in 2023, across 8 specialties on claims.

	observed	calculated	calculated	calculated	calculated	calculated
Ambulatory Surgical Center	1,799	11%	$156,739,113	63%	426,669	237
Gastroenterology	11,444	70%	$78,730,608	32%	754,102	66
General Surgery	1,545	9.4%	$5,663,229	2.3%	49,138	32
Internal Medicine	772	4.7%	$4,409,418	1.8%	40,532	53
Colorectal Surgery (Proctology)	628	3.8%	$2,659,353	1.1%	23,048	37
Family Practice	160	0.97%	$549,066	0.22%	4,083	26
Hospitalist	21	0.13%	$89,652	0.04%	1,008	48
General Practice	12	0.07%	$74,143	0.03%	389	32

Not listed: 20 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 45380 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