	observed	calculated	calculated	calculated	calculated	calculated	reported
2023	13	$14,076	-99%	350	14	50	0.00
2022	1,096	$2,105,066	-99%	54,453	26	141	0.00
2021	41,780	$255,726,896	+22468%	10,601,909	75	808	0.00
2020	1,132	$1,133,158	first year in data	69,416	37	166

Source: CMS Medicare Physician & Other Practitioners public use files (Original Medicare Part B fee-for-service). Data years 2020–2023.

By state

	observed	calculated	calculated	calculated	calculated
California	155	$306,780	7,603	31	135
New Jersey	37	$147,708	3,721	24	334
Florida	45	$136,294	3,553	25	227
New York	73	$132,942	3,211	26	101
Texas	47	$107,978	2,826	44	131
Pennsylvania	52	$99,926	2,590	26	140
Maryland	46	$92,253	2,205	25	144
North Carolina	45	$88,845	2,374	26	166
Washington	27	$59,412	1,484	37	134
Oregon	39	$55,266	1,417	22	102
Missouri	21	$51,957	1,365	25	138
Michigan	32	$47,020	1,222	23	110
Georgia	30	$46,608	1,262	19	152
Idaho	14	$45,952	1,152	41	274
Arizona	12	$44,869	1,183	36	415

Not listed: 17 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	90	$243,068	6,001	26
Los Angeles-Long Beach-Anaheim, CA	62	$113,818	2,819	32
Washington-Arlington-Alexandria, DC-VA-MD-WV	23	$45,910	1,062	25
Baltimore-Columbia-Towson, MD	20	$42,678	1,031	27
Philadelphia-Camden-Wilmington, PA-NJ-DE-MD	22	$34,633	849	19
Chicago-Naperville-Elgin, IL-IN	18	$32,965	818	27
Seattle-Tacoma-Bellevue, WA	13	$31,766	785	57
Detroit-Warren-Dearborn, MI	13	$23,002	580	21
Portland-Vancouver-Hillsboro, OR-WA	16	$22,810	557	26
Boston-Cambridge-Newton, MA-NH	16	$22,580	553	25
San Francisco-Oakland-Fremont, CA	11	$17,681	435	19
Pittsburgh, PA	12	$16,672	441	22
Riverside-San Bernardino-Ontario, CA	12	$13,976	348	21
Virginia Beach-Chesapeake-Norfolk, VA-NC	11	$13,854	359	28
Bend, OR	11	$11,574	307	15

Source: CMS Medicare Physician & Other Practitioners public use files (Original Medicare Part B fee-for-service). The 15 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 0011A nationally

Mass Immunizer Roster Biller accounts for 57% of payment for 0011A nationally in 2022, across 6 specialties on claims.

	observed	calculated	calculated	calculated	calculated	calculated
Mass Immunizer Roster Biller	633	58%	$1,194,022	57%	30,972	49
Pharmacy	294	27%	$570,933	27%	14,793	50
Centralized Flu	19	1.7%	$130,082	6.2%	3,322	175
Clinical Laboratory	31	2.8%	$78,887	3.7%	2,066	67
Internal Medicine	44	4.0%	$49,908	2.4%	1,232	28
Family Practice	49	4.5%	$48,392	2.3%	1,225	25

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 0011A 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