	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	128	$7,428,491	110,982	68	607
California	590	$5,490,347	98,047	85	361
New York	431	$2,206,565	47,088	55	327
Florida	308	$1,955,444	42,382	67	388
Illinois	265	$1,853,260	38,918	65	265
Texas	406	$1,761,672	43,328	50	251
Massachusetts	276	$1,238,731	28,945	59	224
New Jersey	141	$804,264	16,572	61	394
Pennsylvania	311	$801,800	24,646	53	212
Washington	133	$633,416	15,279	74	310
Maryland	105	$618,043	12,469	52	351
Tennessee	152	$575,915	13,675	59	275
Ohio	241	$524,652	16,712	54	156
North Carolina	115	$508,825	12,793	64	345
Virginia	114	$471,426	13,664	100	270

Not listed: 1 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 2024.

Top metro areas

	observed	calculated	calculated	calculated
Phoenix-Mesa-Chandler, AZ	96	$7,236,308	106,627	67
Los Angeles-Long Beach-Anaheim, CA	221	$2,900,856	48,593	83
New York-Newark-Jersey City, NY-NJ	422	$2,580,496	51,695	60
Chicago-Naperville-Elgin, IL-IN	243	$1,842,000	38,535	71
Boston-Cambridge-Newton, MA-NH	218	$1,118,690	24,998	60
Dallas-Fort Worth-Arlington, TX	114	$1,045,005	21,656	59
San Francisco-Oakland-Fremont, CA	87	$667,968	11,337	80
Cape Coral-Fort Myers, FL	14	$535,823	10,675	190
Philadelphia-Camden-Wilmington, PA-NJ-DE-MD	164	$457,361	13,888	59
Washington-Arlington-Alexandria, DC-VA-MD-WV	70	$381,008	7,640	60
Miami-Fort Lauderdale-West Palm Beach, FL	89	$374,258	9,651	68
Baltimore-Columbia-Towson, MD	71	$363,004	7,789	49
San Diego-Chula Vista-Carlsbad, CA	43	$341,072	6,547	92
Houston-Pasadena-The Woodlands, TX	168	$330,872	10,283	36
San Jose-Sunnyvale-Santa Clara, CA	71	$321,300	7,484	75

Source: CMS Medicare Physician & Other Practitioners public use files (Original Medicare Part B fee-for-service). The 82 areas with the most payment among those with at least 11 billers; non-metro parts of each state are one area. Data year 2024.

Specialties billing 88360 nationally

Pathology accounts for 53% of payment for 88360 nationally in 2024, across 3 specialties on claims.

	observed	calculated	calculated	calculated	calculated	calculated
Pathology	5,321	96%	$17,000,695	53%	458,538	86
Clinical Laboratory	185	3.3%	$14,291,157	44%	212,898	1,151
Dermatology	17	0.31%	$835,492	2.6%	7,621	448

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 2024.

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