	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	319	$3,434,710	88,769	117	915
Florida	331	$2,401,059	69,519	85	436
California	428	$2,321,794	69,233	76	410
New Jersey	128	$1,924,395	49,490	94	1,752
Massachusetts	199	$1,349,102	47,071	109	550
Tennessee	140	$1,210,023	34,521	90	931
Pennsylvania	273	$1,203,551	43,165	81	450
Texas	267	$1,068,343	33,391	55	308
Maryland	86	$919,979	21,524	89	597
Illinois	235	$912,834	30,224	64	367
Michigan	173	$696,933	25,143	86	332
North Carolina	149	$669,650	27,704	94	406
Oklahoma	35	$659,903	21,911	147	976
Ohio	257	$635,398	27,301	81	258
Virginia	114	$619,195	18,863	83	508

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 2021.

Top metro areas

	observed	calculated	calculated	calculated
New York-Newark-Jersey City, NY-NJ	277	$4,705,184	114,989	136
Los Angeles-Long Beach-Anaheim, CA	139	$1,190,552	32,368	70
Boston-Cambridge-Newton, MA-NH	141	$1,020,923	34,551	100
Washington-Arlington-Alexandria, DC-VA-MD-WV	91	$912,747	21,879	79
Chicago-Naperville-Elgin, IL-IN	188	$830,299	26,923	77
Philadelphia-Camden-Wilmington, PA-NJ-DE-MD	126	$811,371	27,163	103
Memphis, TN-MS-AR	22	$633,417	15,611	166
Dallas-Fort Worth-Arlington, TX	83	$599,809	16,572	57
Tampa-St. Petersburg-Clearwater, FL	75	$582,348	17,830	65
Oklahoma City, OK	17	$572,512	17,984	167
Phoenix-Mesa-Chandler, AZ	84	$481,359	15,737	102
Miami-Fort Lauderdale-West Palm Beach, FL	75	$416,907	13,502	85
Nashville-Davidson--Murfreesboro--Franklin, TN	63	$340,389	10,307	86
Detroit-Warren-Dearborn, MI	72	$314,520	10,688	86
San Diego-Chula Vista-Carlsbad, CA	49	$298,783	10,645	76

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 2021.

Specialties billing 88112 nationally

Pathology accounts for 68% of payment for 88112 nationally in 2021, across 3 specialties on claims.

	observed	calculated	calculated	calculated	calculated	calculated
Pathology	4,477	90%	$18,064,245	68%	619,754	138
Clinical Laboratory	262	5.3%	$7,891,577	30%	207,979	794
Urology	195	3.9%	$615,229	2.3%	20,003	103

Not listed: 9 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 2021.

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