	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	365	$3,726,884	42,188	57	296
New York	244	$2,916,841	30,669	59	229
Florida	277	$1,276,721	20,273	48	194
Texas	297	$1,177,790	19,815	38	248
Pennsylvania	221	$876,241	16,457	45	199
Illinois	214	$846,653	15,596	52	196
Tennessee	116	$670,458	10,372	51	304
Massachusetts	157	$654,404	11,507	51	192
Ohio	196	$632,136	11,768	43	142
New Jersey	120	$581,504	8,905	48	213
North Carolina	121	$574,161	10,061	64	179
Arizona	91	$499,664	7,506	55	208
Indiana	101	$470,793	8,109	60	148
Maryland	79	$463,638	7,778	63	271
Virginia	96	$447,570	7,542	48	208

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 2024.

Top metro areas

	observed	calculated	calculated	calculated
New York-Newark-Jersey City, NY-NJ	231	$3,057,971	31,676	55
San Francisco-Oakland-Fremont, CA	60	$1,737,269	16,091	67
Chicago-Naperville-Elgin, IL-IN	173	$764,866	13,967	62
Los Angeles-Long Beach-Anaheim, CA	118	$620,055	8,344	44
Philadelphia-Camden-Wilmington, PA-NJ-DE-MD	113	$563,776	10,395	66
Boston-Cambridge-Newton, MA-NH	116	$450,819	7,686	50
Houston-Pasadena-The Woodlands, TX	86	$434,478	8,031	41
Washington-Arlington-Alexandria, DC-VA-MD-WV	49	$392,578	5,243	64
Phoenix-Mesa-Chandler, AZ	63	$362,846	5,566	66
Nashville-Davidson--Murfreesboro--Franklin, TN	54	$334,430	5,551	60
Tampa-St. Petersburg-Clearwater, FL	68	$299,754	4,974	38
Atlanta-Sandy Springs-Roswell, GA	65	$298,543	4,767	52
San Jose-Sunnyvale-Santa Clara, CA	32	$278,605	3,533	52
Baltimore-Columbia-Towson, MD	48	$273,015	5,043	62
Indianapolis-Carmel-Greenwood, IN	30	$239,635	3,738	70

Source: CMS Medicare Physician & Other Practitioners public use files (Original Medicare Part B fee-for-service). The 85 areas with the most payment among those with at least 11 billers; non-metro parts of each state are one area. Data year 2024.

Specialties billing 88173 nationally

Pathology accounts for 77% of payment for 88173 nationally in 2024, across 2 specialties on claims.

	observed	calculated	calculated	calculated	calculated	calculated
Pathology	4,089	95%	$17,104,215	77%	293,819	72
Clinical Laboratory	179	4.2%	$5,164,705	23%	47,909	268

Not listed: 11 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 2024.

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