	observed	calculated	calculated	calculated	calculated	calculated	reported
2024	5,559	$32,293,932	+4%	682,151	58	275	0.85
2023	5,330	$31,074,472	+6%	641,727	58	271	0.85
2022	5,186	$29,316,664	+3%	603,514	56	265	0.85
2021	5,029	$28,558,471	+11%	579,896	57	264	0.85
2020	4,647	$25,819,971	first year in data	508,338	54	245	0.85

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
Arizona	101	$6,177,637	88,883	86	478
California	504	$4,204,095	78,901	75	336
New York	404	$2,238,785	43,231	54	302
Texas	361	$2,106,531	44,274	55	324
Illinois	264	$1,512,561	28,678	59	258
Florida	261	$1,395,266	29,221	65	338
Massachusetts	255	$1,133,512	23,606	50	196
North Carolina	107	$748,236	14,834	72	344
Pennsylvania	287	$727,067	20,614	46	213
Washington	110	$636,848	13,528	65	332
Maryland	102	$527,318	10,156	62	278
Ohio	215	$519,777	15,166	56	170
Virginia	117	$488,402	13,581	91	301
New Jersey	108	$486,958	10,547	58	275
Tennessee	120	$476,459	10,548	52	291

Not listed: 1 billers with an armed-forces or unknown state code (ZZ); they are in the national totals.

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
Phoenix-Mesa-Chandler, AZ	71	$5,976,472	85,126	86
Los Angeles-Long Beach-Anaheim, CA	190	$2,457,746	44,124	74
New York-Newark-Jersey City, NY-NJ	370	$2,321,201	43,638	54
Chicago-Naperville-Elgin, IL-IN	245	$1,513,111	28,704	60
Dallas-Fort Worth-Arlington, TX	98	$1,309,295	23,127	47
Boston-Cambridge-Newton, MA-NH	195	$1,016,855	20,070	52
Philadelphia-Camden-Wilmington, PA-NJ-DE-MD	148	$397,749	10,814	50
Houston-Pasadena-The Woodlands, TX	143	$388,334	10,654	56
Cape Coral-Fort Myers, FL	19	$315,776	4,514	117
Nashville-Davidson--Murfreesboro--Franklin, TN	73	$299,456	6,923	55
Seattle-Tacoma-Bellevue, WA	67	$297,441	6,832	72
Miami-Fort Lauderdale-West Palm Beach, FL	65	$291,410	7,292	66
San Jose-Sunnyvale-Santa Clara, CA	54	$277,604	5,958	85
San Francisco-Oakland-Fremont, CA	68	$268,987	6,642	79
Baltimore-Columbia-Towson, MD	59	$261,616	5,952	60

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 88360 nationally

Pathology accounts for 53% of payment for 88360 nationally in 2021, across 2 specialties on claims.

	observed	calculated	calculated	calculated	calculated	calculated
Pathology	4,817	96%	$15,230,996	53%	393,486	82
Clinical Laboratory	183	3.6%	$13,187,198	46%	184,412	1,008

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 2021.

Top billers of 88360 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