	observed	calculated	calculated	calculated	calculated	calculated	reported
2024	10,448	$119,025,755	+4%	3,714,400	219	949	0.56
2023	10,274	$114,255,266	+4%	3,581,269	213	920	0.56
2022	10,211	$110,165,585	-3%	3,408,551	205	858	0.56
2021	10,142	$113,075,997	+9%	3,350,348	203	844	0.56
2020	9,961	$103,783,517	first year in data	3,065,394	190	809	0.56

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	923	$14,500,054	411,088	256	1,137
Florida	648	$12,987,863	340,450	259	1,725
New York	738	$8,264,730	246,570	213	904
Texas	814	$7,220,130	233,510	182	737
Arizona	212	$6,100,503	145,608	267	1,261
Illinois	454	$5,388,135	160,563	213	824
Pennsylvania	530	$4,291,909	161,537	197	847
Massachusetts	431	$3,859,918	128,588	212	732
New Jersey	223	$3,552,984	100,580	299	1,099
Ohio	438	$3,496,636	131,323	195	796
Virginia	195	$3,330,431	101,164	291	1,476
Maryland	216	$3,253,269	88,748	219	1,009
Tennessee	284	$3,194,002	98,586	213	912
Georgia	229	$2,602,441	79,088	223	941
North Carolina	278	$2,522,754	88,627	217	955

Not listed: 5 billers with an armed-forces or unknown state code (ZZ); they are in the national totals.

Not listed: 2 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	667	$9,945,319	272,082	242
Los Angeles-Long Beach-Anaheim, CA	367	$7,077,701	181,909	248
Phoenix-Mesa-Chandler, AZ	158	$5,417,360	124,215	264
Chicago-Naperville-Elgin, IL-IN	383	$4,947,444	140,601	218
Miami-Fort Lauderdale-West Palm Beach, FL	187	$4,132,493	103,220	248
Boston-Cambridge-Newton, MA-NH	351	$3,269,054	103,865	204
Cape Coral-Fort Myers, FL	32	$3,209,558	62,604	512
Washington-Arlington-Alexandria, DC-VA-MD-WV	152	$2,923,858	74,509	288
Dallas-Fort Worth-Arlington, TX	201	$2,597,598	71,989	200
Philadelphia-Camden-Wilmington, PA-NJ-DE-MD	257	$2,222,469	83,149	212
Houston-Pasadena-The Woodlands, TX	292	$1,951,137	70,225	169
Atlanta-Sandy Springs-Roswell, GA	138	$1,835,665	52,662	235
Tampa-St. Petersburg-Clearwater, FL	141	$1,757,494	56,078	271
Little Rock-North Little Rock-Conway, AR	88	$1,752,598	43,747	175
St. Louis, MO-IL	132	$1,650,098	48,022	232

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 2023.

Specialties billing 88341 nationally

Pathology accounts for 67% of payment for 88341 nationally in 2023, across 5 specialties on claims.

	observed	calculated	calculated	calculated	calculated	calculated
Pathology	9,400	91%	$76,333,887	67%	2,835,528	302
Clinical Laboratory	372	3.6%	$30,572,933	27%	601,043	1,616
Dermatology	418	4.1%	$6,991,456	6.1%	133,256	319
Gastroenterology	22	0.21%	$64,933	0.06%	1,723	78
Urology	14	0.14%	$27,193	0.02%	798	57

Not listed: 17 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 88341 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