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 10 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. Patrick Demuth, MDColorado Springs, CO 809201730155508
  2. Thomas Denberg, MDAurora, CO 800451912097593
  3. Jaime Dennehy, M.D.Fort Collins, CO 805251750760005
  4. Jay Dennehy, M.D.Fort Collins, CO 805251669851911
  5. Kevin Depner, MDDenver, CO 802041437683794
  6. Natalie Dequillfeldt, MD, MADenver, CO 802041710568258
  7. Robert Dexter, M.D.Denver, CO 802051265562029
  8. Todd Dextradeur, MDThornton, CO 802601801845532
  9. Anjali Dhurandhar, M.D.Aurora, CO 800451023035045
  10. Cynthia Di Lauro, MDEstes Park, CO 805171023100476
  11. Gregory Dilorenzo, D.OBroomfield, CO 800201861404048
  12. Cristian Dinescu, MDLone Tree, CO 801241750302790
  13. Lauren Dise, MDAurora, CO 800141992144034
  14. Brandon Dmytruk, MDPueblo, CO 810031235651514
  15. Cuong Doan, MDDenver, CO 802181093867558
  16. Aubrey Dobbs, M.D.Lakewood, CO 802151316007826
  17. Cezary Dobija, M.D.Lafayette, CO 800261639151459
  18. Robert Domaleski, M.D.Golden, CO 804031427129378
  19. Andrew Dombro, MDDenver, CO 802621255421830
  20. Theresa Donati, MDEvergreen, CO 804391225066111
  21. Christopher Dondlinger, M.D.Delta, CO 814161952318925
  22. Robert Doolan, M.D.Aurora, CO 800451841202884
  23. Danielle Doro, M.D.Greeley, CO 806311437145190
  24. Matthew Douglas, M.D.Denver, CO 802181770700080
  25. Jessica Dowgiert, PA-CLouisville, CO 800271558072025
  26. David Downs, M.D.Denver, CO 802471275537698
  27. Robert Drake, MDPueblo, CO 810041700066735
  28. Chester Dreiman, MDBoulder, CO 803051013983196
  29. Brandy Drennan, RNAurora, CO 800121447380381
  30. Benjamin Drumright, MDDenver, CO 802041790314953
  31. Lihua Du, MDRifle, CO 816501215198320
  32. Richard Ducharme, M.D.Colorado Springs, CO 809071386642007
  33. Jordan Dudley, DOEnglewood, CO 801131750083150
  34. Marilyn DueyBoulder, CO 803031417084484
  35. Douglas Duffee, M.D.Pueblo, CO 810031851372320
  36. Bryce Dugas, MDLone Tree, CO 801241699351536
  37. Coco Dughi, M.D.Boulder, CO 803041356325013
  38. Melinda Dukarm, D.O.Grand Junction, CO 815051255839601
  39. Albert Duncan, MDColorado Springs, CO 809201922074517
  40. Gentry Dunlop, MDAurora, CO 800151790805224
  41. Lawrence Dunn, MDColorado Springs, CO 809031396711024
  42. Teri Dunn, RNLittleton, CO 801221780711713
  43. Shahed Durando, MDGolden, CO 804011649454018
  44. Peter Durante, MDCentennial, CO 801221518431691
  45. Brian Dwinnell, M.D.Denver, CO 802181992725964
  46. Debra Dyer, LPNLakewood, CO 802261013125178
  47. Liselotte Dyrbye, M.D.Aurora, CO 800451275511164
  48. Mark Earnest, MDAurora, CO 800451700976487
  49. Michelle Eason-Delhougne, MDCastle Rock, CO 801091407969595
  50. John Ebens, MDGreeley, CO 806311649257544

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.