	observed	calculated	calculated	calculated	calculated	calculated	reported
2024	8,537	$105,008,876	-0%	364,912	26	132	3.26
2023	8,773	$105,087,294	+7%	384,059	27	136	3.26
2022	8,623	$98,638,928	+2%	380,903	27	137	3.26
2021	8,482	$96,750,545	+35%	372,353	27	136	3.26
2020	7,238	$71,579,724	first year in data	279,730	24	117	3.26

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	699	$9,572,093	37,173	29	185
California	567	$7,462,843	23,663	26	131
Pennsylvania	493	$6,473,411	24,384	30	160
Texas	562	$5,989,756	23,891	26	135
North Carolina	338	$4,403,443	16,904	31	161
New York	325	$3,608,448	12,256	22	122
Massachusetts	261	$3,527,731	13,457	29	179
New Jersey	261	$3,371,345	11,250	24	147
Maryland	199	$3,162,430	11,333	34	186
Georgia	294	$3,148,297	12,214	28	118
Ohio	313	$3,062,842	12,140	25	120
Tennessee	217	$2,747,698	11,523	35	153
Arizona	183	$2,602,794	9,927	33	199
Michigan	261	$2,590,152	10,271	24	115
Illinois	274	$2,578,674	10,408	27	95

Not listed: 4 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 2021.

Top metro areas

	observed	calculated	calculated	calculated
New York-Newark-Jersey City, NY-NJ	359	$4,771,443	14,921	23
Philadelphia-Camden-Wilmington, PA-NJ-DE-MD	228	$3,316,174	11,761	30
Boston-Cambridge-Newton, MA-NH	201	$2,375,852	9,198	28
Miami-Fort Lauderdale-West Palm Beach, FL	166	$2,077,635	7,972	25
Washington-Arlington-Alexandria, DC-VA-MD-WV	167	$2,008,216	7,483	28
Phoenix-Mesa-Chandler, AZ	130	$1,902,027	6,994	29
Atlanta-Sandy Springs-Roswell, GA	170	$1,892,717	7,098	27
Dallas-Fort Worth-Arlington, TX	176	$1,806,388	6,991	25
Chicago-Naperville-Elgin, IL-IN	198	$1,681,540	6,867	24
Los Angeles-Long Beach-Anaheim, CA	154	$1,624,673	5,520	24
Baltimore-Columbia-Towson, MD	94	$1,528,314	5,502	34
San Francisco-Oakland-Fremont, CA	95	$1,466,254	4,138	28
Detroit-Warren-Dearborn, MI	103	$1,259,258	4,829	29
Seattle-Tacoma-Bellevue, WA	117	$1,212,778	4,350	23
Jacksonville, FL	72	$1,079,720	4,272	28

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 2021.

Specialties billing G0105 nationally

Ambulatory Surgical Center accounts for 56% of payment for G0105 nationally in 2021, across 6 specialties on claims.

	observed	calculated	calculated	calculated	calculated	calculated
Ambulatory Surgical Center	1,382	16%	$54,175,295	56%	147,536	107
Gastroenterology	5,658	67%	$35,589,502	37%	187,461	33
General Surgery	722	8.5%	$2,902,295	3.0%	16,014	22
Colorectal Surgery (Proctology)	373	4.4%	$2,209,965	2.3%	11,546	31
Internal Medicine	273	3.2%	$1,520,982	1.6%	8,015	29
Family Practice	46	0.54%	$156,150	0.16%	944	21

Not listed: 14 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 2021.

Top billers of G0105 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