	observed	calculated	calculated	calculated	calculated	calculated	reported
2024	4,818	$23,802,074	-3%	812,667	82	418	0.56
2023	4,868	$24,661,162	-3%	827,246	80	426	0.56
2022	4,937	$25,408,766	-4%	829,651	79	428	0.56
2021	4,949	$26,603,617	+2%	849,065	82	443	0.56
2020	4,912	$26,081,065	first year in data	822,103	82	441	0.56

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
New York	341	$4,011,812	99,028	109	809
Florida	319	$2,180,569	69,408	86	351
California	436	$2,134,822	67,744	68	389
New Jersey	126	$1,755,016	47,263	89	1,536
Massachusetts	199	$1,233,149	43,185	103	520
Tennessee	142	$1,207,779	35,753	95	1,036
Pennsylvania	258	$954,773	37,443	84	297
Illinois	243	$933,163	31,614	76	341
Texas	263	$911,527	29,578	52	255
Maryland	84	$809,336	18,744	84	1,141
Virginia	120	$693,738	21,415	94	486
Michigan	170	$692,845	25,321	85	351
North Carolina	147	$662,552	28,472	102	451
Ohio	251	$611,950	26,434	82	272
Oklahoma	34	$548,358	19,653	115	889

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

Not listed: 4 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	291	$5,008,849	120,833	115
Los Angeles-Long Beach-Anaheim, CA	139	$984,808	29,095	61
Boston-Cambridge-Newton, MA-NH	141	$939,631	32,604	100
Chicago-Naperville-Elgin, IL-IN	193	$808,465	26,654	71
Washington-Arlington-Alexandria, DC-VA-MD-WV	93	$793,025	19,139	80
Memphis, TN-MS-AR	23	$628,701	15,876	117
Philadelphia-Camden-Wilmington, PA-NJ-DE-MD	122	$605,019	22,711	98
Tampa-St. Petersburg-Clearwater, FL	79	$598,057	24,101	83
Dallas-Fort Worth-Arlington, TX	84	$482,586	14,278	62
Oklahoma City, OK	17	$480,364	16,644	135
Phoenix-Mesa-Chandler, AZ	81	$474,834	15,414	95
Detroit-Warren-Dearborn, MI	74	$416,869	13,359	91
Miami-Fort Lauderdale-West Palm Beach, FL	73	$377,724	11,964	78
Nashville-Davidson--Murfreesboro--Franklin, TN	62	$356,522	11,352	95
San Diego-Chula Vista-Carlsbad, CA	51	$348,921	11,997	78

Source: CMS Medicare Physician & Other Practitioners public use files (Original Medicare Part B fee-for-service). The 85 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 88112 nationally

Pathology accounts for 67% of payment for 88112 nationally in 2022, across 3 specialties on claims.

	observed	calculated	calculated	calculated	calculated	calculated
Pathology	4,488	91%	$17,117,489	67%	599,311	134
Clinical Laboratory	259	5.2%	$7,656,520	30%	209,746	810
Urology	171	3.5%	$596,694	2.3%	19,127	112

Not listed: 12 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 88112 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