	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	336	$3,352,153	35,371	45	206
New York	251	$2,931,969	29,032	45	226
Florida	258	$1,288,910	19,077	43	179
Texas	283	$1,206,207	18,439	38	239
Pennsylvania	240	$936,243	15,945	45	159
Illinois	217	$791,771	13,480	43	182
Massachusetts	162	$659,246	10,619	47	164
Ohio	202	$646,267	10,915	40	139
North Carolina	123	$643,391	10,673	69	249
Tennessee	114	$643,228	9,907	53	305
New Jersey	114	$555,535	7,831	45	174
Virginia	99	$503,296	7,613	45	266
Maryland	88	$495,415	7,133	54	250
Michigan	147	$439,930	7,790	39	123
Indiana	95	$437,854	7,203	46	199

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 2021.

Top metro areas

	observed	calculated	calculated	calculated
New York-Newark-Jersey City, NY-NJ	232	$3,004,117	29,218	45
San Francisco-Oakland-Fremont, CA	61	$1,680,314	14,884	41
Chicago-Naperville-Elgin, IL-IN	165	$685,035	11,574	53
Philadelphia-Camden-Wilmington, PA-NJ-DE-MD	127	$630,403	10,303	61
Los Angeles-Long Beach-Anaheim, CA	110	$597,847	8,017	45
Boston-Cambridge-Newton, MA-NH	124	$475,599	7,564	43
Washington-Arlington-Alexandria, DC-VA-MD-WV	48	$447,820	5,198	60
Houston-Pasadena-The Woodlands, TX	78	$394,346	6,617	40
Phoenix-Mesa-Chandler, AZ	58	$326,739	4,782	62
Dallas-Fort Worth-Arlington, TX	79	$295,302	4,444	37
Baltimore-Columbia-Towson, MD	49	$271,959	4,483	60
Nashville-Davidson--Murfreesboro--Franklin, TN	54	$260,549	4,176	54
Sacramento-Roseville-Folsom, CA	17	$256,959	2,501	66
Miami-Fort Lauderdale-West Palm Beach, FL	48	$250,615	3,668	44
Indianapolis-Carmel-Greenwood, IN	28	$244,462	3,766	97

Source: CMS Medicare Physician & Other Practitioners public use files (Original Medicare Part B fee-for-service). The 82 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 88173 nationally

Pathology accounts for 75% of payment for 88173 nationally in 2021, across 2 specialties on claims.

	observed	calculated	calculated	calculated	calculated	calculated
Pathology	4,078	95%	$16,328,725	75%	259,833	64
Clinical Laboratory	201	4.7%	$5,415,800	25%	50,297	250

Not listed: 9 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 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