	observed	calculated	calculated	calculated	calculated	calculated	reported
2024	10,031	$190,400,814	+2%	989,295	48	291	3.42
2023	10,087	$187,454,660	+2%	998,616	47	282	3.42
2022	10,077	$184,382,244	-4%	1,009,177	48	300	3.42
2021	10,180	$192,613,647	+14%	1,041,922	47	304	3.42
2020	9,476	$168,827,632	first year in data	863,997	44	277	3.42

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
Florida	744	$17,958,732	79,899	59	375
California	937	$17,046,006	63,838	43	216
Texas	665	$13,421,804	58,337	54	288
Pennsylvania	429	$7,659,858	33,051	52	233
New York	506	$7,054,407	26,181	32	138
Illinois	361	$5,679,017	84,501	48	1,479
Georgia	281	$5,657,400	25,691	58	248
Ohio	374	$5,616,413	41,334	43	286
Arizona	217	$5,578,383	25,625	79	368
Indiana	237	$5,517,912	28,383	57	529
Washington	269	$5,298,403	23,670	47	322
Virginia	243	$5,168,398	24,033	54	268
North Carolina	320	$4,872,949	45,196	51	636
Tennessee	231	$4,795,166	42,858	66	694
Missouri	230	$4,603,681	22,193	56	270

Not listed: 3 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	533	$7,535,850	26,443	31
Los Angeles-Long Beach-Anaheim, CA	326	$5,032,570	18,413	40
Dallas-Fort Worth-Arlington, TX	171	$4,359,986	18,793	71
Chicago-Naperville-Elgin, IL-IN	275	$4,003,898	25,310	39
Philadelphia-Camden-Wilmington, PA-NJ-DE-MD	202	$3,763,726	14,837	46
Phoenix-Mesa-Chandler, AZ	131	$3,718,684	16,865	84
Tampa-St. Petersburg-Clearwater, FL	117	$2,990,034	13,459	59
Washington-Arlington-Alexandria, DC-VA-MD-WV	170	$2,614,142	9,513	39
Atlanta-Sandy Springs-Roswell, GA	151	$2,600,280	11,140	50
Boston-Cambridge-Newton, MA-NH	172	$2,429,527	9,678	34
Miami-Fort Lauderdale-West Palm Beach, FL	177	$2,401,634	9,668	35
Seattle-Tacoma-Bellevue, WA	118	$2,290,374	9,723	43
Houston-Pasadena-The Woodlands, TX	140	$2,274,048	9,444	45
Detroit-Warren-Dearborn, MI	144	$2,017,838	8,358	38
St. Louis, MO-IL	102	$1,973,011	12,275	53

Source: CMS Medicare Physician & Other Practitioners public use files (Original Medicare Part B fee-for-service). The 98 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 66821 nationally

Ophthalmology accounts for 74% of payment for 66821 nationally in 2022, across 2 specialties on claims.

	observed	calculated	calculated	calculated	calculated	calculated
Ophthalmology	8,291	82%	$137,027,057	74%	555,558	67
Ambulatory Surgical Center	1,038	10%	$43,899,373	24%	235,758	227

Not listed: 8 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 66821 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