	observed	calculated	calculated	calculated	calculated	calculated	reported
2024	8,154	$47,700,328	-4%	237,385	20	76	3.26
2023	8,675	$49,874,389	-4%	258,797	20	79	3.26
2022	9,419	$51,965,549	-10%	293,487	21	83	3.26
2021	10,135	$57,844,508	+8%	324,365	22	86	3.26
2020	9,788	$53,702,661	first year in data	307,810	22	83	3.26

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
New York	767	$6,340,115	28,156	23	104
California	837	$5,957,447	30,212	24	102
Florida	721	$4,596,915	25,836	23	111
Texas	616	$3,046,356	18,299	20	81
New Jersey	369	$2,489,534	12,578	23	99
Pennsylvania	445	$1,992,103	11,285	18	64
Illinois	393	$1,812,160	11,045	20	74
Maryland	235	$1,688,499	9,189	25	116
Ohio	358	$1,594,598	9,820	20	73
North Carolina	289	$1,539,763	8,772	22	71
Georgia	280	$1,464,937	8,613	20	75
Tennessee	229	$1,277,364	7,972	24	96
South Carolina	181	$1,241,209	7,395	28	112
Arizona	189	$1,167,030	6,169	22	95
Massachusetts	241	$1,121,988	7,197	22	78

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 2022.

Top metro areas

	observed	calculated	calculated	calculated
New York-Newark-Jersey City, NY-NJ	844	$7,141,128	31,453	24
Los Angeles-Long Beach-Anaheim, CA	281	$2,151,310	10,811	23
Philadelphia-Camden-Wilmington, PA-NJ-DE-MD	245	$1,173,436	6,347	20
Chicago-Naperville-Elgin, IL-IN	282	$1,137,554	7,086	19
Washington-Arlington-Alexandria, DC-VA-MD-WV	154	$1,021,081	5,132	21
Miami-Fort Lauderdale-West Palm Beach, FL	144	$878,181	4,776	21
Baltimore-Columbia-Towson, MD	118	$836,225	4,756	27
Phoenix-Mesa-Chandler, AZ	122	$734,704	3,779	22
Boston-Cambridge-Newton, MA-NH	170	$654,321	4,266	20
Dallas-Fort Worth-Arlington, TX	135	$624,170	3,442	16
Detroit-Warren-Dearborn, MI	134	$608,523	3,592	19
San Francisco-Oakland-Fremont, CA	97	$598,150	2,811	22
Atlanta-Sandy Springs-Roswell, GA	135	$595,102	3,352	18
Las Vegas-Henderson-North Las Vegas, NV	64	$556,640	2,805	29
Houston-Pasadena-The Woodlands, TX	117	$546,843	3,153	19

Source: CMS Medicare Physician & Other Practitioners public use files (Original Medicare Part B fee-for-service). The 93 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 45378 nationally

Gastroenterology accounts for 47% of payment for 45378 nationally in 2022, across 6 specialties on claims.

	observed	calculated	calculated	calculated	calculated	calculated
Gastroenterology	6,353	67%	$24,578,620	47%	171,504	27
Ambulatory Surgical Center	1,418	15%	$22,045,411	42%	83,297	59
General Surgery	931	9.9%	$2,755,333	5.3%	20,946	22
Internal Medicine	394	4.2%	$1,499,771	2.9%	10,271	26
Colorectal Surgery (Proctology)	255	2.7%	$862,171	1.7%	5,971	23
Family Practice	27	0.29%	$61,377	0.12%	440	16

Not listed: 16 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 45378 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