NPPES file of Aug 9, 2026

Emergency Medicine Physician in Colorado

1,434 NPPES records list emergency medicine physician with a practice address in Colorado, 24 per 100,000 residents, the 18th highest rate of 51. Denver and Aurora have the most; each record links to the provider's NPI and the Colorado license search. Page 13 of 29.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207P00000X · 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, 287

  1. Denver287
  2. Aurora246
  3. Colorado Springs145
  4. Fort Collins67
  5. Lakewood56

Emergency Medicine Physician records in Colorado

  1. Daniel Johnson, M.D.Keystone, CO 804351467686196
  2. Drew Johnson, DOColorado Springs, CO 809091588879696
  3. Lee Johnson, MDDenver, CO 802041356978860
  4. Robin JohnsonColorado Springs, CO 809091699730622
  5. Scott Johnson, M.D.Brush, CO 807231093775942
  6. Stephen JohnsonDurango, CO 813011326134875
  7. Christopher Johnston, MDLakewood, CO 802261578880910
  8. Henry Johnston, M.D.Golden, CO 804031770630121
  9. Mary JohnstonFort Collins, CO 805241073957288
  10. Philip JohnstonFort Collins, CO 805241467484733
  11. Kippie Jonas, D.O.Fort Collins, CO 805241235542929
  12. Austin Jones, MD, PHDThornton, CO 802411568048304
  13. David Jones, M.D.Aurora, CO 800141619953767
  14. Jamira Jones, MDAurora, CO 800161104938422
  15. Michael Jones, MDBoulder, CO 803051215956768
  16. Colin Jorgensen, MDColorado Springs, CO 809091275021008
  17. Jalyn Joseph, MDGolden, CO 804011619617883
  18. Kathleen Joseph, MDDenver, CO 802041841759024
  19. Nicholos Joseph, MDDenver, CO 802041063107043
  20. Carol Joslin, MDPueblo, CO 810031598748170
  21. David Joyce, M.D.Pueblo, CO 810031225399579
  22. Patrick Joynt, MDDenver, CO 802041326400383
  23. Christopher Juels, MDDenver, CO 802181740306372
  24. David Kaleugher, DODenver, CO 802181952438905
  25. Matthew Kamper, M.D.Cortez, CO 813211528070323
  26. Amanda Kao, M.D.Denver, CO 802041487813481
  27. Bonnie Kaplan, M.D.Denver, CO 802041649438706
  28. Lauren Kaplan, MDAurora, CO 800451780262147
  29. Sabrina Kaplan, MDAurora, CO 800451619369345
  30. Nathan Karber, M.D.Wheat Ridge, CO 800331831317718
  31. Lauren Karsh, MDGreenwood Village, CO 801111811456783
  32. David Kasarda, MDDelta, CO 814161568437911
  33. Brian Kass, MDAurora, CO 800451467406256
  34. Mason Kates, MDColorado Springs, CO 809071033168364
  35. Noah Kaufman, MDDenver, CO 802111841365160
  36. Ilan Kaye, M.D.Aurora, CO 800451437512639
  37. Ryan Keenan, MDAurora, CO 800451669969937
  38. Sean Keenan, MDPueblo, CO 810031912009069
  39. Anneliese Keller, D.O.Alamosa, CO 811011710181219
  40. Tyler Keller, M.D.Pueblo, CO 810031912325226
  41. Cynthia KelmensonDenver, CO 802181962488460
  42. Arielle Kempinsky, MDAurora, CO 800451912589193
  43. Patrick KeoghEdwards, CO 816321154412898
  44. Andrew Kestler, MDAurora, CO 800451346270451
  45. Linda KeyesLongmont, CO 805011962411298
  46. Hari Khalsa, M.D.Lakewood, CO 802261790005122
  47. Deena Khamees, MDAurora, CO 800151770962102
  48. Sadaf Khan, M.D.Colorado Springs, CO 809091417988619
  49. Michael Kidon, DODenver, CO 802041841797610
  50. Julie Kiley, MDColorado Springs, CO 809091730162314

Source: CMS NPPES, primary taxonomy 207P00000X: records by practice city and the list of records, file of Aug 9, 2026.

Colorado ranks 18 of 51 per resident

  1. Alaska25
  2. Wisconsin25
  3. New Mexico24
  4. Colorado24
  5. Delaware24
  6. Minnesota23
  7. 50 states and D.C.21

Source: CMS NPPES, primary taxonomy 207P00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

77.0% of these records appear in a Medicare file, against 81.5% 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. Colorado77.0%
  2. United States81.5%

Emergency Medicine Physician records in Colorado, measured

  • In a Medicare file1,104 of 1,434 · 77.0% here, 81.5% nationally
  • In the CMS Doctors and Clinicians file811 · 56.6% here, 58.7% nationally
  • Not updated in five years or more842 · 58.7% here, 54.8% nationally
  • Median graduation year2011 · the 810 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207P00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

1,434 NPPES records list emergency medicine physician (207P00000X) as their primary taxonomy with a practice address in Colorado: 24 per 100,000 residents against 21 nationally (50 states and D.C.). Denver has 287 of them (20%).

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. Washington1,459
  2. Missouri1,405
  3. Wisconsin1,464
  4. Arizona1,494

States with a similar rate per 100,000

  1. New Mexico24.5
  2. Alaska25.0
  3. New Hampshire25.0
  4. Delaware23.5

The largest states

  1. California7,751
  2. New York5,025
  3. Texas4,885
  4. Florida4,034
  5. Pennsylvania3,911

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.