Anesthesiologist Assistant
NUCC 367H00000X
4,711 CMS NPPES-registered providers across 42 states · 135th of 690 specialties by headcount.
Where this specialty sits in the corpus
Anesthesiologist Assistant ranks 135th of 690 NUCC specialties by CMS NPPES headcount (0.06% of all registered NPIs), densest in Georgia; per resident District of Columbia leads.
- 4,711
- NPPES providers in specialty
- 135th
- of 690 specialties
- 1627
- state-share HHI
- 0.1%
- Part D prescriber share
District of Columbia is densest per capita (11.6× the national rate; Georgia 9.4×).
Taxonomy fingerprint
Anesthesiologist Assistant (NUCC 367H00000X; 0.1% Part D prescribers (6 of 4,711); avg 360 Part D claims/prescriber (339th of 572); Open Payments avg $127/physician (503rd of 551; 1,302 paid, $165K total); state-share HHI 1,627; next-larger headcount neighbor Clinical Child & Adolescent Psychologist (+1); next-smaller Adult Psychiatric/Mental Health Registered Nurse (-70)).
Next larger: Clinical Child & Adolescent Psychologist (4,712) Next smaller: Adult Psychiatric/Mental Health Registered Nurse (4,641)
Population-adjusted state index
Each multiple is this specialty's providers-per-resident in a state divided by the national rate (Census Vintage population estimates). Raw headcount favors large states; this ranking surfaces denser markets.
Over-indexed vs national rate
- District of Columbia 11.6× · 16.2/100k
- Georgia 9.4× · 13.1/100k
- Missouri 3.5× · 4.8/100k
- Wisconsin 3.2× · 4.4/100k
- Florida 2.9× · 4.1/100k
Under-indexed vs national rate
- California 0.01× · 0/100k
- New York 0.03× · 0/100k
- Virginia 0.04× · 0.1/100k
- Washington 0.06× · 0.1/100k
- Pennsylvania 0.06× · 0.1/100k
Which states have the most providers?
| # | State | Providers |
|---|---|---|
| 1 | Georgia | 1,445 |
| 2 | Florida | 925 |
| 3 | Texas | 461 |
| 4 | Ohio | 446 |
| 5 | Missouri | 300 |
| 6 | Wisconsin | 260 |
| 7 | Colorado | 212 |
| 8 | Indiana | 159 |
| 9 | District of Columbia | 110 |
| 10 | South Carolina | 70 |
| 11 | New Mexico | 63 |
| 12 | North Carolina | 53 |
| 13 | Michigan | 36 |
| 14 | Vermont | 26 |
| 15 | Oklahoma | 24 |
Top Cities for Anesthesiologist Assistant
| # | City | Providers |
|---|---|---|
| 1 | AtlantaGeorgia | 718 |
| 2 | HoustonTexas | 195 |
| 3 | Saint LouisMissouri | 167 |
| 4 | ClevelandOhio | 167 |
| 5 | SavannahGeorgia | 119 |
| 6 | WashingtonDistrict of Columbia | 110 |
| 7 | AuroraColorado | 103 |
| 8 | TampaFlorida | 102 |
| 9 | JacksonvilleFlorida | 98 |
| 10 | MilwaukeeWisconsin | 98 |
| 11 | GainesvilleGeorgia | 94 |
| 12 | OrlandoFlorida | 93 |
Sample Anesthesiologist Assistant NPIs
A directory sample from this NUCC code (not a ranking). Names and locations are unique to this taxonomy.
| # | Provider |
|---|---|
| 1 | Mark Morrow, AATulsa, OK |
| 2 | Iyad Saleh, AALa Crosse, WI |
| 3 | Robert Stupi, AALa Crosse, WI |
| 4 | Ty Townsend, AA-CRound Rock, TX |
| 5 | Benjamin Yoder, AASaint Louis, MO |
| 6 | Andrea Croshal, RA -AAColorado Springs, CO |
| 7 | Chi-Seng Lam, AALa Crosse, WI |
| 8 | David Smith, PA-AAPueblo, CO |
| 9 | Scott McAndrews, AACincinnati, OH |
| 10 | Robert McCann, AACincinnati, OH |
| 11 | Jennifer Barker, AACincinnati, OH |
| 12 | Thomas Cole, AACincinnati, OH |
| 13 | Scott Dawson, AACincinnati, OH |
| 14 | Tracy Davis, AACincinnati, OH |
| 15 | Kristen Dawson, AACincinnati, OH |
| 16 | Carol Gillis, AACincinnati, OH |
| 17 | Christina Becker, CAAIndianapolis, IN |
| 18 | Heather Sims, AACincinnati, OH |
Frequently Asked Questions
Where does the large Anesthesiologist Assistant headcount concentrate?
How large is Anesthesiologist Assistant's Open Payments footprint?
How heavy is Anesthesiologist Assistant Part D prescribing at scale?
Data sources and methodology
Provider data from CMS NPPES (download.cms.gov/nppes). Specialty classification from NUCC Health Care Provider Taxonomy (nucc.org). Part D averages from the CMS Medicare Part D Prescriber PUF; industry payments from CMS Open Payments 2024. Counts reflect self-designated primary taxonomy at NPI enrollment. PlainDoctor does not rate or rank providers. Methodology · About
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026-08-27.