	observed	calculated	calculated	calculated	calculated	calculated	reported
2024	4,283	$22,318,231	+2%	342,543	50	216	1.39
2023	4,276	$21,796,575	+3%	325,855	47	207	1.39
2022	4,250	$21,243,088	-3%	309,937	44	197	1.39
2021	4,294	$21,789,570	+6%	310,706	43	199	1.39
2020	4,188	$20,579,775	first year in data	288,601	41	187	1.39

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	309	$3,106,921	31,909	39	195
New York	244	$2,639,244	26,140	43	219
Florida	250	$1,261,359	18,446	44	189
Texas	279	$1,155,179	17,383	36	174
Pennsylvania	249	$954,297	15,735	41	179
Illinois	208	$742,644	12,400	44	161
North Carolina	129	$659,928	10,529	63	217
Tennessee	123	$623,643	9,376	44	285
Ohio	192	$605,290	9,864	39	128
Massachusetts	147	$604,640	9,505	53	167
New Jersey	117	$504,380	6,965	38	151
Virginia	101	$485,491	7,062	39	228
Michigan	144	$435,984	7,467	39	140
Indiana	91	$431,067	6,991	56	217
Arizona	80	$429,582	5,929	54	203

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 2020.

Top metro areas

	observed	calculated	calculated	calculated
New York-Newark-Jersey City, NY-NJ	231	$2,685,549	26,014	43
San Francisco-Oakland-Fremont, CA	56	$1,592,236	13,990	39
Chicago-Naperville-Elgin, IL-IN	160	$632,716	10,496	52
Philadelphia-Camden-Wilmington, PA-NJ-DE-MD	127	$586,832	9,341	48
Los Angeles-Long Beach-Anaheim, CA	106	$519,437	6,716	36
Boston-Cambridge-Newton, MA-NH	109	$419,708	6,510	48
Houston-Pasadena-The Woodlands, TX	73	$367,463	6,018	45
Washington-Arlington-Alexandria, DC-VA-MD-WV	46	$367,272	4,328	70
Phoenix-Mesa-Chandler, AZ	58	$316,535	4,573	68
Dallas-Fort Worth-Arlington, TX	83	$300,566	4,524	31
Nashville-Davidson--Murfreesboro--Franklin, TN	58	$247,650	3,920	45
Sacramento-Roseville-Folsom, CA	15	$245,763	2,293	80
St. Louis, MO-IL	54	$242,189	4,091	50
Indianapolis-Carmel-Greenwood, IN	29	$238,361	3,652	90
Baltimore-Columbia-Towson, MD	53	$229,731	3,734	44

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 2020.

Specialties billing 88173 nationally

Pathology accounts for 74% of payment for 88173 nationally in 2020, across 2 specialties on claims.

	observed	calculated	calculated	calculated	calculated	calculated
Pathology	3,969	95%	$15,331,810	74%	238,717	60
Clinical Laboratory	208	5.0%	$5,211,990	25%	49,456	238

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 2020.

Top billers of 88173 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