	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	325	$3,603,610	99,148	126	710
California	427	$2,203,717	70,272	77	361
Florida	325	$2,173,105	71,646	86	377
New Jersey	130	$1,698,869	45,619	91	1,450
Tennessee	155	$1,213,324	35,808	80	1,056
Massachusetts	194	$1,210,392	43,059	114	486
Pennsylvania	263	$1,198,816	42,615	78	315
Illinois	226	$932,716	31,608	79	356
Texas	260	$827,639	27,802	56	327
Maryland	81	$718,595	18,094	88	1,188
North Carolina	150	$632,337	27,600	97	427
Arizona	108	$614,713	20,190	92	370
Ohio	247	$601,699	26,863	84	259
Virginia	111	$593,168	18,518	95	369
Michigan	164	$574,583	22,639	90	375

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 2023.

Top metro areas

	observed	calculated	calculated	calculated
New York-Newark-Jersey City, NY-NJ	284	$4,716,894	122,566	139
Los Angeles-Long Beach-Anaheim, CA	138	$937,828	29,010	63
Boston-Cambridge-Newton, MA-NH	134	$914,722	32,351	105
Chicago-Naperville-Elgin, IL-IN	187	$818,177	27,516	86
Memphis, TN-MS-AR	34	$678,334	17,361	85
Washington-Arlington-Alexandria, DC-VA-MD-WV	78	$656,068	17,026	98
Tampa-St. Petersburg-Clearwater, FL	81	$634,353	27,045	71
Phoenix-Mesa-Chandler, AZ	84	$522,678	16,736	100
Philadelphia-Camden-Wilmington, PA-NJ-DE-MD	122	$514,745	20,140	86
Oklahoma City, OK	17	$438,937	14,049	115
Miami-Fort Lauderdale-West Palm Beach, FL	78	$377,561	11,844	77
Dallas-Fort Worth-Arlington, TX	72	$376,703	11,322	64
Atlanta-Sandy Springs-Roswell, GA	76	$371,113	12,012	73
San Diego-Chula Vista-Carlsbad, CA	47	$366,747	11,055	83
Detroit-Warren-Dearborn, MI	70	$339,918	11,499	92

Source: CMS Medicare Physician & Other Practitioners public use files (Original Medicare Part B fee-for-service). The 87 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 88112 nationally

Pathology accounts for 68% of payment for 88112 nationally in 2023, across 3 specialties on claims.

	observed	calculated	calculated	calculated	calculated	calculated
Pathology	4,434	91%	$16,687,223	68%	596,923	135
Clinical Laboratory	245	5.0%	$7,394,076	30%	211,303	862
Urology	163	3.3%	$527,307	2.1%	16,892	104

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 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