	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	747	$6,807,433	83,164	85	273
Florida	494	$4,410,436	61,555	94	293
New York	626	$4,395,793	59,058	68	261
Texas	660	$4,226,472	60,449	70	228
Pennsylvania	465	$2,888,300	43,713	76	225
Illinois	396	$2,573,486	38,268	81	232
Massachusetts	337	$2,395,024	34,169	76	253
Ohio	376	$2,109,395	32,748	79	183
North Carolina	229	$1,832,275	26,870	93	277
Maryland	173	$1,772,804	21,695	114	290
Virginia	167	$1,719,585	24,218	130	308
Tennessee	218	$1,669,052	24,170	89	264
Michigan	311	$1,551,366	24,175	63	174
Georgia	200	$1,502,276	21,523	85	235
New Jersey	185	$1,464,152	18,712	85	268

Not listed: 4 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 2022.

Top metro areas

	observed	calculated	calculated	calculated
New York-Newark-Jersey City, NY-NJ	554	$4,460,671	57,917	76
Los Angeles-Long Beach-Anaheim, CA	287	$2,903,359	32,317	83
Chicago-Naperville-Elgin, IL-IN	315	$2,137,814	31,358	80
Boston-Cambridge-Newton, MA-NH	268	$1,959,994	27,731	77
Philadelphia-Camden-Wilmington, PA-NJ-DE-MD	229	$1,792,383	25,974	85
Dallas-Fort Worth-Arlington, TX	186	$1,400,116	18,157	71
Washington-Arlington-Alexandria, DC-VA-MD-WV	126	$1,246,744	15,501	104
Houston-Pasadena-The Woodlands, TX	210	$1,165,297	17,325	64
Miami-Fort Lauderdale-West Palm Beach, FL	142	$1,109,815	15,429	70
Baltimore-Columbia-Towson, MD	115	$1,024,455	14,117	112
Phoenix-Mesa-Chandler, AZ	101	$1,011,349	14,871	123
Atlanta-Sandy Springs-Roswell, GA	115	$958,173	12,939	79
Nashville-Davidson--Murfreesboro--Franklin, TN	110	$844,338	12,785	93
Seattle-Tacoma-Bellevue, WA	109	$824,398	11,338	97
St. Louis, MO-IL	126	$817,834	12,125	88

Source: CMS Medicare Physician & Other Practitioners public use files (Original Medicare Part B fee-for-service). The 100 areas with the most payment among those with at least 11 billers; non-metro parts of each state are one area. Data year 2022.

Specialties billing 88307 nationally

Pathology accounts for 91% of payment for 88307 nationally in 2022, across 4 specialties on claims.

	observed	calculated	calculated	calculated	calculated	calculated
Pathology	8,263	97%	$56,737,479	91%	841,248	102
Clinical Laboratory	203	2.4%	$5,174,863	8.3%	40,806	201
Dermatology	26	0.30%	$374,188	0.60%	2,576	99
Oral Surgery (Dentist only)	12	0.14%	$95,118	0.15%	704	59

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 2022.

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