	observed	calculated	calculated	calculated	calculated	calculated	reported
2024	6,097	$138,421,618	+9%	352,333	38	165	3.32
2023	5,957	$126,662,585	+7%	332,373	37	157	3.32
2022	5,889	$118,035,248	-3%	322,215	37	151	3.32
2021	5,735	$121,939,550	+8%	337,163	40	161	3.78
2020	5,434	$112,513,363	first year in data	316,532	39	168	3.78

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	526	$12,790,091	34,159	44	188
California	430	$10,745,791	24,505	37	169
Texas	536	$10,454,081	28,963	37	149
Georgia	271	$8,104,968	21,543	56	241
Arizona	193	$5,996,378	16,184	61	191
Maryland	175	$4,777,399	11,862	46	205
New York	224	$4,384,202	10,904	33	126
Tennessee	141	$3,643,858	10,181	50	175
Ohio	210	$3,526,252	11,683	41	144
Pennsylvania	210	$3,277,050	9,414	34	109
Illinois	190	$3,179,156	9,782	32	140
New Jersey	163	$2,880,392	6,550	29	120
Louisiana	113	$2,705,279	8,131	40	208
Arkansas	99	$2,592,940	7,996	57	197
Virginia	114	$2,576,232	7,121	42	163

Not listed: 7 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
Atlanta-Sandy Springs-Roswell, GA	161	$4,798,616	12,259	58
New York-Newark-Jersey City, NY-NJ	252	$4,656,489	10,578	30
Phoenix-Mesa-Chandler, AZ	149	$4,439,745	11,808	58
Washington-Arlington-Alexandria, DC-VA-MD-WV	96	$2,606,590	6,219	36
Philadelphia-Camden-Wilmington, PA-NJ-DE-MD	136	$2,540,758	6,461	35
Chicago-Naperville-Elgin, IL-IN	155	$2,387,266	7,240	29
Dallas-Fort Worth-Arlington, TX	164	$2,383,161	6,735	33
Los Angeles-Long Beach-Anaheim, CA	118	$2,226,405	5,377	34
Baltimore-Columbia-Towson, MD	89	$2,201,851	5,623	53
Boston-Cambridge-Newton, MA-NH	90	$1,715,825	5,098	36
Tampa-St. Petersburg-Clearwater, FL	85	$1,627,183	4,438	35
Las Vegas-Henderson-North Las Vegas, NV	58	$1,601,110	3,673	49
San Antonio-New Braunfels, TX	63	$1,501,935	3,688	41
Miami-Fort Lauderdale-West Palm Beach, FL	84	$1,479,019	3,816	32
Nashville-Davidson--Murfreesboro--Franklin, TN	55	$1,464,395	3,903	46

Source: CMS Medicare Physician & Other Practitioners public use files (Original Medicare Part B fee-for-service). The 80 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 64635 nationally

Ambulatory Surgical Center accounts for 47% of payment for 64635 nationally in 2021, across 12 specialties on claims.

	observed	calculated	calculated	calculated	calculated	calculated
Ambulatory Surgical Center	1,072	19%	$56,752,859	47%	103,649	97
Pain Management	1,305	23%	$18,743,582	15%	67,995	52
Interventional Pain Management	920	16%	$16,031,856	13%	54,140	59
Anesthesiology	1,161	20%	$15,433,886	13%	57,122	49
Physical Medicine and Rehabilitation	1,047	18%	$12,197,116	10%	44,781	43
Neurology	43	0.75%	$547,221	0.45%	1,860	43
Orthopedic Surgery	38	0.66%	$428,667	0.35%	1,416	37
Diagnostic Radiology	29	0.51%	$346,822	0.28%	1,153	40
Internal Medicine	13	0.23%	$201,431	0.17%	653	50
Neurosurgery	21	0.37%	$198,448	0.16%	781	37
Family Practice	18	0.31%	$180,474	0.15%	585	33
Certified Registered Nurse Anesthetist (CRNA)	19	0.33%	$127,522	0.10%	566	30

Not listed: 12 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 64635 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