	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	701	$10,221,334	36,736	30	176
California	651	$9,615,408	28,050	27	131
Texas	605	$7,238,883	26,661	27	128
Pennsylvania	497	$6,153,614	22,714	27	152
North Carolina	336	$4,151,593	15,166	28	149
New York	336	$3,959,686	13,009	22	131
New Jersey	277	$3,846,322	12,002	26	145
Maryland	222	$3,840,741	12,726	33	183
Georgia	296	$3,487,234	12,778	27	122
Massachusetts	284	$3,434,801	13,303	27	154
Ohio	344	$3,335,190	12,950	24	119
Arizona	198	$3,074,299	11,139	33	180
Illinois	306	$3,054,710	11,897	26	95
South Carolina	172	$2,758,520	10,546	40	199
Tennessee	203	$2,668,766	10,741	35	142

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 2023.

Top metro areas

	observed	calculated	calculated	calculated
New York-Newark-Jersey City, NY-NJ	377	$5,428,354	16,207	25
Philadelphia-Camden-Wilmington, PA-NJ-DE-MD	245	$3,295,176	11,247	26
Los Angeles-Long Beach-Anaheim, CA	205	$2,494,867	7,651	24
Boston-Cambridge-Newton, MA-NH	220	$2,411,537	9,434	26
Washington-Arlington-Alexandria, DC-VA-MD-WV	185	$2,387,028	8,032	27
Dallas-Fort Worth-Arlington, TX	201	$2,352,707	8,399	27
Phoenix-Mesa-Chandler, AZ	143	$2,213,191	7,628	29
Miami-Fort Lauderdale-West Palm Beach, FL	167	$2,159,794	7,426	23
Chicago-Naperville-Elgin, IL-IN	220	$2,070,353	8,079	24
Atlanta-Sandy Springs-Roswell, GA	162	$2,056,879	7,060	26
Baltimore-Columbia-Towson, MD	101	$1,884,574	6,334	35
San Francisco-Oakland-Fremont, CA	96	$1,637,107	4,070	27
Detroit-Warren-Dearborn, MI	105	$1,419,052	5,177	29
Seattle-Tacoma-Bellevue, WA	116	$1,232,533	4,185	23
Charlotte-Concord-Gastonia, NC-SC	98	$1,209,990	4,378	25

Source: CMS Medicare Physician & Other Practitioners public use files (Original Medicare Part B fee-for-service). The 96 areas with the most payment among those with at least 11 billers; non-metro parts of each state are one area. Data year 2023.

Specialties billing G0105 nationally

Ambulatory Surgical Center accounts for 60% of payment for G0105 nationally in 2023, across 6 specialties on claims.

	observed	calculated	calculated	calculated	calculated	calculated
Ambulatory Surgical Center	1,441	16%	$62,703,227	60%	149,841	104
Gastroenterology	5,834	66%	$35,259,708	34%	194,627	33
General Surgery	734	8.4%	$2,936,365	2.8%	16,912	23
Colorectal Surgery (Proctology)	376	4.3%	$2,199,922	2.1%	11,855	32
Internal Medicine	313	3.6%	$1,695,292	1.6%	9,279	30
Family Practice	44	0.50%	$138,768	0.13%	751	17

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 2023.

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