	observed	calculated	calculated	calculated	calculated	calculated	reported
2024	8,514	$59,335,934	-3%	881,889	81	261	1.59
2023	8,511	$61,185,252	-2%	887,379	82	264	1.59
2022	8,539	$62,529,430	-5%	887,291	82	258	1.59
2021	8,609	$66,047,784	+0%	912,696	83	260	1.59
2020	8,510	$65,751,112	first year in data	884,414	82	255	1.59

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	724	$6,847,885	85,723	90	296
Florida	488	$4,339,466	61,965	96	325
New York	617	$4,328,662	59,643	71	260
Texas	664	$3,915,873	58,154	71	216
Pennsylvania	462	$2,752,798	42,632	69	220
Massachusetts	351	$2,639,621	38,425	82	312
Illinois	391	$2,367,106	35,887	78	218
Ohio	373	$1,983,970	31,595	77	182
North Carolina	229	$1,755,364	26,130	93	266
Maryland	176	$1,701,285	21,364	105	286
Virginia	172	$1,643,132	23,787	116	293
Tennessee	215	$1,612,497	23,186	93	222
New Jersey	188	$1,589,082	20,634	95	275
Washington	180	$1,514,168	21,432	106	258
Georgia	186	$1,441,210	21,075	94	269

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	556	$4,574,152	60,581	79
Los Angeles-Long Beach-Anaheim, CA	279	$2,834,321	32,512	87
Boston-Cambridge-Newton, MA-NH	280	$2,203,370	31,769	85
Chicago-Naperville-Elgin, IL-IN	321	$2,040,796	30,725	79
Philadelphia-Camden-Wilmington, PA-NJ-DE-MD	221	$1,758,437	26,098	98
Washington-Arlington-Alexandria, DC-VA-MD-WV	129	$1,167,942	14,925	95
Miami-Fort Lauderdale-West Palm Beach, FL	141	$1,158,830	16,449	71
Houston-Pasadena-The Woodlands, TX	225	$1,155,494	17,678	61
Dallas-Fort Worth-Arlington, TX	172	$1,147,985	15,655	77
Baltimore-Columbia-Towson, MD	120	$1,121,662	14,727	111
Phoenix-Mesa-Chandler, AZ	104	$1,083,090	16,237	134
Atlanta-Sandy Springs-Roswell, GA	103	$936,969	12,892	98
Seattle-Tacoma-Bellevue, WA	114	$857,187	12,170	92
San Francisco-Oakland-Fremont, CA	91	$814,691	10,966	101
St. Louis, MO-IL	123	$809,373	12,195	87

Source: CMS Medicare Physician & Other Practitioners public use files (Original Medicare Part B fee-for-service). The 98 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 88307 nationally

Pathology accounts for 91% of payment for 88307 nationally in 2023, across 4 specialties on claims.

	observed	calculated	calculated	calculated	calculated	calculated
Pathology	8,235	97%	$55,688,625	91%	842,391	102
Clinical Laboratory	199	2.3%	$4,894,331	8.0%	40,072	201
Dermatology	30	0.35%	$370,464	0.61%	2,401	80
Oral Surgery (Dentist only)	13	0.15%	$91,925	0.15%	670	52

Not listed: 14 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 88307 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