NPPES file of Aug 9, 2026

Internal Medicine Physician in Colorado

2,046 NPPES records list internal medicine physician with a practice address in Colorado, 35 per 100,000 residents, the 35th highest rate of 51. Denver and Aurora have the most; each record links to the provider's NPI and the Colorado license search. Page 15 of 41.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 207R00000X · 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, 493

  1. Denver493
  2. Aurora244
  3. Colorado Springs169
  4. Pueblo91
  5. Boulder74

Internal Medicine Physician records in Colorado

  1. Mark Haimes, MDBoulder, CO 803031114908613
  2. Stephen Haley, MDLongmont, CO 805031306973326
  3. Jason Hall, DODenver, CO 802201093417487
  4. Lisabeth Hall, MDLafayette, CO 800261376578187
  5. Rewaida Hall, MDColorado Springs, CO 809221902426166
  6. Quinn Halverson, M.D.Colorado Springs, CO 809071790190643
  7. Karima Hamamsy, MDLafayette, CO 800261861079469
  8. James Hamilton, M.D.Fort Carson, CO 809131346220092
  9. Kathy HamiltonLittleton, CO 801231831226877
  10. Marsha Hamner, MDGreeley, CO 806311144357724
  11. Daniel Hankins, DODenver, CO 802471821594508
  12. Alexander Hanna, MDLittleton, CO 801231447625694
  13. Robert Hannaman, MDColorado Springs, CO 809061336470608
  14. Rebecca Hanratty, MDDenver, CO 802041649294307
  15. Ananda HansaDenver, CO 802471831226851
  16. Adam Hansen, DOLone Tree, CO 801241538690201
  17. Evgenia Hanson, M.D.Parker, CO 801381972876860
  18. Stephanie Harabaglia, D.O., M.S.Colorado Springs, CO 809091104277532
  19. Richard Harbison, M.D.Colorado Springs, CO 809091295784841
  20. Lawrence Harbrecht, MDGrand Junction, CO 815051073001335
  21. Harlan Harclerode, DOColorado Springs, CO 809071316966781
  22. James Hardee, MDWestminster, CO 802341134256720
  23. Eric Harker, MDLyons, CO 805401366572109
  24. Laura Harper, MDWestminster, CO 800031598392425
  25. Daniel Harris, MDGrand Junction, CO 815011831294354
  26. John Harris, MDCentennial, CO 801121730206434
  27. Kenneth Harris, MDMontrose, CO 814011184698516
  28. Michael Harris, D.O.Pueblo, CO 810031033650809
  29. Carol Harrold, MDMontrose, CO 814011912959420
  30. Linda Hartman, RNAurora, CO 800141811024490
  31. Laura Haseganu, M.D.Lone Tree, CO 801241730347907
  32. Paul HassettGreenwood Village, CO 801111154564912
  33. Catherine Hatchell, M.D.Colorado Springs, CO 809101225033251
  34. David Haukeness, MDLafayette, CO 800261669516449
  35. Pamela Havlen, MDDenver, CO 802181255490801
  36. Christine Haynes, M.D., M.P.H.Denver, CO 802041770825085
  37. Regina Healy, M.D.Centennial, CO 801221194852145
  38. Joseph HeatonLafayette, CO 800261427192137
  39. Nasim Heckenberg, MDColorado Springs, CO 809091285020743
  40. Caleb Hedberg, D.O.Lakewood, CO 802281306233713
  41. John Hedberg, M.D.Lakewood, CO 802281578560942
  42. Anne Heenan, MDParker, CO 801381750801809
  43. Robert Heineman, DOLone Tree, CO 801241053872101
  44. Melissa Helms, MDGolden, CO 804011760681282
  45. Micah Helton, M.D.Durango, CO 813011194172379
  46. Thomas Henderson, MDColorado Springs, CO 809031740371020
  47. Jennifer Hendrick, MDFort Collins, CO 805281144256728
  48. Robert Hendry, DOPueblo, CO 810031437723913
  49. Jason Henry, M.DDenver, CO 802181396163010
  50. Daniel Heppe, MDDenver, CO 802621710159942

Source: CMS NPPES, primary taxonomy 207R00000X: records by practice city and the list of records, file of Aug 9, 2026.

Colorado ranks 35 of 51 per resident

  1. Georgia35
  2. Wisconsin35
  3. South Carolina35
  4. Colorado35
  5. Kansas34
  6. Kentucky34
  7. 50 states and D.C.44

Source: CMS NPPES, primary taxonomy 207R00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

70.8% of these records appear in a Medicare file, against 78.7% 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. Colorado70.8%
  2. United States78.7%

Internal Medicine Physician records in Colorado, measured

  • In a Medicare file1,448 of 2,046 · 70.8% here, 78.7% nationally
  • In the CMS Doctors and Clinicians file1,091 · 53.3% here, 61.4% nationally
  • Not updated in five years or more1,240 · 60.6% here, 55.4% nationally
  • Median graduation year2006 · the 1,090 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 207R00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

2,046 NPPES records list internal medicine physician (207R00000X) as their primary taxonomy with a practice address in Colorado: 35 per 100,000 residents against 44 nationally (50 states and D.C.). Denver has 493 of them (24%).

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. Wisconsin2,078
  2. Indiana2,109
  3. Oregon2,116
  4. South Carolina1,881

States with a similar rate per 100,000

  1. Kansas34.3
  2. Georgia35.5
  3. Puerto Rico35.7
  4. Kentucky33.7

The largest states

  1. California17,696
  2. New York12,067
  3. Florida10,151
  4. Texas9,175
  5. Pennsylvania7,300

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.