NPPES file of Aug 9, 2026

Anesthesiology Physician in Colorado

1,202 NPPES records list anesthesiology physician with a practice address in Colorado, 20 per 100,000 residents, the 12th highest rate of 51. Denver and Aurora have the most; each record links to the provider's NPI and the Colorado license search. Page 9 of 25.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207L00000X · method

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Denver has the most, 225

  1. Denver225
  2. Aurora163
  3. Greenwood Village155
  4. Colorado Springs120
  5. Fort Collins66

Anesthesiology Physician records in Colorado

  1. Tanner Gregory, MDGreenwood Village, CO 801111427589985
  2. Todd Gregory, MDColorado Springs, CO 809091598845588
  3. Leonard Griffiths, MDDenver, CO 802031982680393
  4. Thomas Griffiths, MDDenver, CO 802051811217250
  5. Peter Grigg, MDColorado Springs, CO 809091316997521
  6. Andrea Grilli, MDDenver, CO 802031003893298
  7. David Grosser, MDLafayette, CO 800261164429536
  8. Cierra GrubbsWheat Ridge, CO 800331780213041
  9. Dejan GrujicAspen, CO 816111972791705
  10. Sarah Gueli, M.D.Durango, CO 813011922260231
  11. Ramakrishna Gumidyala, MDAurora, CO 800451043475908
  12. Joy Guth, MDDenver, CO 802051992851679
  13. Paul Gutowski, D.O.Lakewood, CO 802281699713669
  14. Wojciech Gwarnicki, M.D.Greenwood Village, CO 801111437545928
  15. Laurel Haberstroh, M.D.Denver, CO 802181962582650
  16. Jay Hacking, MDDenver, CO 802621356542393
  17. Katherine Haeck, MDGreenwood Village, CO 801111235249525
  18. Gina Haeussner, MDLittleton, CO 801201962727503
  19. Douglas Hagan, MDGreenwood Village, CO 801111164497426
  20. Robert Hagebak, MDGreeley, CO 806311861421430
  21. Veronica Hailes, M.D.Denver, CO 802051376577031
  22. Wayne Halfar, MDDenver, CO 802031720065915
  23. James Hall, M.D.Colorado Springs, CO 809061942293725
  24. Matthew Hall, MDDenver, CO 802031831245455
  25. Brian Hamberg, DOGreeley, CO 806311750888343
  26. Bryan Hamilton, MDGreenwood Village, CO 801111366079006
  27. Natalie Hamilton, MDGolden, CO 804011417108242
  28. Alyssa Hamman, MDEnglewood, CO 801101154518843
  29. Elizabeth Handysides, MDDenver, CO 802051679600605
  30. Brenden Hanks, M.D.Parker, CO 801381235349101
  31. Aaron Hansen, MDGreenwood Village, CO 801111447289822
  32. Michael Hanson, MDPueblo, CO 810041437166923
  33. Patrycja Hanyen, M.D.Denver, CO 802051740628486
  34. Ming Ming HaoColorado Springs, CO 809091700836707
  35. Lacy-Ann Harari, M.D.Greenwood Village, CO 801111528385721
  36. Kimberly Harden, M.D.Colorado Springs, CO 809211699972026
  37. Logan Harding, M.D.Pueblo, CO 810031407171952
  38. Nehah Harinarayan, MDGreenwood Village, CO 801111245790641
  39. Ryan Harkins, M.DAurora, CO 800451699158402
  40. Peter Harkness, MDDenver, CO 802031760456404
  41. Steven Harline, M.D.Colorado Springs, CO 809231881661809
  42. Christopher Harper, M.D.Colorado Springs, CO 809061023221041
  43. Edward Harrington, MDGreenwood Village, CO 801111861472391
  44. Thomas Harris, MDColorado Springs, CO 809071699961029
  45. John Harrison, M.D.Boulder, CO 803041093706723
  46. Martin Harrison, M DGolden, CO 804011114902897
  47. William Harrison, M.D.Fort Collins, CO 805241144281924
  48. Robert Hart, M.D.Greeley, CO 806341598860629
  49. Clare Hasken, MDGreenwood Village, CO 801111992266845
  50. Rick Haterius, M.D.Colorado Springs, CO 809071780651703

Source: CMS NPPES, primary taxonomy 207L00000X: records by practice city and the list of records, file of Aug 9, 2026.

Colorado ranks 12 of 51 per resident

  1. Indiana21
  2. Vermont21
  3. Illinois21
  4. Colorado20
  5. Maryland20
  6. Maine20
  7. 50 states and D.C.18

Source: CMS NPPES, primary taxonomy 207L00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

74.7% of these records appear in a Medicare file, against 73.7% nationally

A Medicare file here is Part D prescribing (2024), a MIPS score (2023), an Open Payments record (2024) or Medicare group billing (CMS Doctors and Clinicians). A record outside them may still see patients: these files cover Medicare only.

  1. Colorado74.7%
  2. United States73.7%

Anesthesiology Physician records in Colorado, measured

  • In a Medicare file898 of 1,202 · 74.7% here, 73.7% nationally
  • In the CMS Doctors and Clinicians file824 · 68.6% here, 67.2% nationally
  • Not updated in five years or more731 · 60.8% here, 57.8% nationally
  • Median graduation year2006 · the 824 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207L00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

1,202 NPPES records list anesthesiology physician (207L00000X) as their primary taxonomy with a practice address in Colorado: 20 per 100,000 residents against 18 nationally (50 states and D.C.). Denver has 225 of them (19%).

A record is a registration a provider made and keeps up to date: it shows neither that the provider is licensed nor that they still practice there. The state's own license search is the check.

States with a similar number

  1. Missouri1,153
  2. Maryland1,253
  3. Wisconsin1,313
  4. Minnesota1,042

States with a similar rate per 100,000

  1. Illinois20.5
  2. Maine20.1
  3. Vermont20.9
  4. Montana20.0

The largest states

  1. California7,571
  2. New York5,062
  3. Texas4,635
  4. Florida3,375
  5. Illinois2,575

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy; 2023 Census population estimates. A registry record is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.