	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% (2023 changed hospital and observation visit codes)	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	– (Not compared: 2021 changed office visit values)	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	$7,521,952	82,695	84	269
Florida	489	$4,604,120	62,265	99	308
Texas	641	$4,324,806	58,476	71	213
New York	611	$4,246,070	53,825	66	228
Pennsylvania	484	$3,220,455	45,961	75	218
Illinois	396	$2,607,623	37,044	79	213
Massachusetts	329	$2,292,874	31,025	72	239
North Carolina	245	$2,124,492	29,676	92	312
Ohio	370	$2,123,900	31,263	71	184
Maryland	177	$1,874,118	22,175	111	267
Tennessee	226	$1,770,495	24,923	91	272
Virginia	172	$1,764,306	24,127	127	309
Michigan	313	$1,705,661	24,964	71	168
Missouri	208	$1,566,472	22,039	80	277
Georgia	198	$1,556,849	21,409	91	244

Not listed: 2 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 2020.

Top metro areas

	observed	calculated	calculated	calculated
New York-Newark-Jersey City, NY-NJ	536	$4,148,729	50,921	69
Los Angeles-Long Beach-Anaheim, CA	275	$3,631,449	34,354	75
Chicago-Naperville-Elgin, IL-IN	316	$2,165,455	30,504	79
Philadelphia-Camden-Wilmington, PA-NJ-DE-MD	239	$1,941,674	26,573	87
Boston-Cambridge-Newton, MA-NH	251	$1,814,179	24,363	73
Dallas-Fort Worth-Arlington, TX	175	$1,389,278	16,943	76
Washington-Arlington-Alexandria, DC-VA-MD-WV	117	$1,219,924	14,413	99
Houston-Pasadena-The Woodlands, TX	206	$1,131,824	15,761	58
Baltimore-Columbia-Towson, MD	120	$1,111,131	14,486	110
Phoenix-Mesa-Chandler, AZ	90	$1,021,539	14,394	152
Miami-Fort Lauderdale-West Palm Beach, FL	140	$1,004,385	13,629	79
Atlanta-Sandy Springs-Roswell, GA	115	$976,937	12,753	83
St. Louis, MO-IL	135	$957,552	13,050	76
Nashville-Davidson--Murfreesboro--Franklin, TN	114	$929,321	13,662	96
Seattle-Tacoma-Bellevue, WA	101	$838,021	10,891	105

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 2020.

Specialties billing 88307 nationally

Pathology accounts for 90% of payment for 88307 nationally in 2020, across 4 specialties on claims.

	observed	calculated	calculated	calculated	calculated	calculated
Pathology	8,232	97%	$59,158,144	90%	832,582	101
Clinical Laboratory	212	2.5%	$5,989,039	9.1%	47,370	223
Dermatology	21	0.25%	$355,127	0.54%	2,080	99
Oral Surgery (Dentist only)	17	0.20%	$113,128	0.17%	785	46

Not listed: 16 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 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