	observed	calculated	calculated	calculated	calculated	calculated	reported
2024	5,559	$32,293,932	+4%	682,151	58	275	0.85
2023	5,330	$31,074,472	+6%	641,727	58	271	0.85
2022	5,186	$29,316,664	+3%	603,514	56	265	0.85
2021	5,029	$28,558,471	+11%	579,896	57	264	0.85
2020	4,647	$25,819,971	first year in data	508,338	54	245	0.85

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
Arizona	85	$5,286,764	72,300	78	645
California	485	$4,150,370	73,658	71	335
New York	375	$2,068,760	38,525	52	278
Texas	295	$1,947,517	38,618	51	219
Illinois	256	$1,268,328	25,913	57	221
North Carolina	96	$1,213,809	20,582	73	417
Florida	250	$1,203,260	25,339	61	324
Pennsylvania	265	$687,731	18,719	46	207
Washington	104	$630,862	13,311	75	348
Massachusetts	225	$532,255	13,624	46	157
Ohio	215	$493,231	13,747	45	151
Tennessee	129	$481,479	10,180	46	278
Maryland	96	$475,804	8,512	58	266
Virginia	118	$446,893	12,044	79	272
New Jersey	110	$389,963	8,631	49	182

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

Not listed: 5 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
Phoenix-Mesa-Chandler, AZ	62	$5,110,102	69,190	76
New York-Newark-Jersey City, NY-NJ	345	$2,074,765	37,939	51
Los Angeles-Long Beach-Anaheim, CA	186	$2,057,572	37,307	75
Dallas-Fort Worth-Arlington, TX	87	$1,363,343	24,533	61
Chicago-Naperville-Elgin, IL-IN	239	$1,245,652	25,258	56
Boston-Cambridge-Newton, MA-NH	169	$434,574	10,784	51
Philadelphia-Camden-Wilmington, PA-NJ-DE-MD	142	$363,738	9,575	51
Seattle-Tacoma-Bellevue, WA	65	$297,894	6,468	69
Nashville-Davidson--Murfreesboro--Franklin, TN	69	$279,505	6,214	50
San Francisco-Oakland-Fremont, CA	63	$270,107	6,631	83
Miami-Fort Lauderdale-West Palm Beach, FL	69	$268,392	6,590	56
Houston-Pasadena-The Woodlands, TX	109	$247,214	6,181	36
Washington-Arlington-Alexandria, DC-VA-MD-WV	64	$247,058	5,015	63
Cape Coral-Fort Myers, FL	15	$245,979	3,357	135
San Jose-Sunnyvale-Santa Clara, CA	51	$242,143	4,988	70

Source: CMS Medicare Physician & Other Practitioners public use files (Original Medicare Part B fee-for-service). The 78 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 88360 nationally

Pathology accounts for 52% of payment for 88360 nationally in 2020, across 2 specialties on claims.

	observed	calculated	calculated	calculated	calculated	calculated
Pathology	4,440	96%	$13,518,497	52%	337,117	76
Clinical Laboratory	177	3.8%	$11,703,562	45%	165,084	933

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 2020.

Top billers of 88360 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