	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	713	$17,645,933	77,632	59	381
California	878	$14,402,722	53,760	39	195
Texas	650	$11,928,820	51,023	49	238
Pennsylvania	407	$6,796,822	29,003	44	231
New York	452	$5,752,816	21,365	30	127
Indiana	224	$5,475,035	27,807	57	508
Georgia	268	$5,348,234	24,537	56	237
Ohio	355	$5,231,304	33,918	41	249
Illinois	348	$5,089,959	59,217	40	1,161
Washington	258	$4,819,371	21,296	40	272
Virginia	235	$4,764,744	21,298	48	297
Arizona	199	$4,605,943	20,931	67	330
Tennessee	231	$4,595,758	35,105	50	558
North Carolina	298	$4,535,716	43,606	48	423
Missouri	216	$4,490,865	21,244	53	306

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 2020.

Top metro areas

	observed	calculated	calculated	calculated
New York-Newark-Jersey City, NY-NJ	454	$6,060,662	21,106	29
Los Angeles-Long Beach-Anaheim, CA	321	$4,213,291	15,287	30
Dallas-Fort Worth-Arlington, TX	170	$3,764,839	16,136	57
Chicago-Naperville-Elgin, IL-IN	258	$3,318,937	20,899	36
Philadelphia-Camden-Wilmington, PA-NJ-DE-MD	181	$3,166,476	12,335	41
Phoenix-Mesa-Chandler, AZ	127	$3,026,013	13,529	59
Tampa-St. Petersburg-Clearwater, FL	109	$2,672,682	11,855	64
Atlanta-Sandy Springs-Roswell, GA	133	$2,458,820	10,368	51
Washington-Arlington-Alexandria, DC-VA-MD-WV	146	$2,233,147	8,170	34
Seattle-Tacoma-Bellevue, WA	114	$2,131,334	9,059	33
Miami-Fort Lauderdale-West Palm Beach, FL	160	$2,107,379	8,383	33
Houston-Pasadena-The Woodlands, TX	130	$1,999,628	8,170	45
Boston-Cambridge-Newton, MA-NH	139	$1,999,478	7,975	35
St. Louis, MO-IL	99	$1,908,600	8,524	47
Detroit-Warren-Dearborn, MI	129	$1,889,213	7,632	43

Source: CMS Medicare Physician & Other Practitioners public use files (Original Medicare Part B fee-for-service). The 97 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 66821 nationally

Ophthalmology accounts for 74% of payment for 66821 nationally in 2020, across 2 specialties on claims.

	observed	calculated	calculated	calculated	calculated	calculated
Ophthalmology	7,831	83%	$125,485,784	74%	499,219	64
Ambulatory Surgical Center	1,101	12%	$40,908,634	24%	220,313	200

Not listed: 7 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 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