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 36 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. Duane Spaulding, M.D., F.A.C.P.Colorado Springs, CO 809191013024678
  2. Douglas Speedie, M.D.Eckert, CO 814181912132556
  3. Robert Spees, MDColorado Springs, CO 809171154419281
  4. Meaghan Spencer, M.D.Denver, CO 802181457617417
  5. Betty SpiecherAurora, CO 800141568505014
  6. Carol Spies, MDGreenwood Village, CO 801111851430011
  7. Daniel Spinuzzi, MDWoodland Park, CO 808631679881866
  8. Jonathan Sprague, MDBoulder, CO 803031164748299
  9. Harlan Spritzer, M.D.Centennial, CO 801221932242021
  10. Vishwajith SridharanDenver, CO 802181871053926
  11. Nikhilesh Srinivasan, MDLone Tree, CO 801241265069546
  12. Aldona Staar-Kumosa, MDParker, CO 801381447342043
  13. Sheldon Stadnyk, M.D.Greeley, CO 806311003053638
  14. Jamie Stalker, M.D.Arvada, CO 800051912165861
  15. Debra StambackLafayette, CO 800261235269176
  16. Barbara StanoWheat Ridge, CO 800331801930607
  17. Monica Stanton, M.D.Monument, CO 801321811286834
  18. Christopher StarkPueblo, CO 810031013936764
  19. Thomas Starkey, MDDenver, CO 802051205883436
  20. Cheryl Stearns, M.D.Aurora, CO 800141417090960
  21. Gary Stec, MDBoulder, CO 803011912979709
  22. Andrew Steele, MD, MPH, MSCDenver, CO 802041831271147
  23. Mihaela Stefan, MDBoulder, CO 803041114911088
  24. Karen Steinberg, MDColorado Springs, CO 809181477961787
  25. Claudia Steiner, MDDenver, CO 802471548385313
  26. Alwin Steinmann, M.D.Denver, CO 802181598751612
  27. Marc Steinmetz, M.D., M.P.H.Denver, CO 802111477855948
  28. Karen Stenehjem, MDAurora, CO 800451609219534
  29. Mark Stephens, MDAvon, CO 816201407858137
  30. Ann SterlingLongmont, CO 805031336283118
  31. Kristin Sterrett, M.D.Westminster, CO 800031427347186
  32. Elizabeth Stewart, M.D.Trinidad, CO 810821114998226
  33. Rowland Stewart, MDColorado Springs, CO 809201982613469
  34. Jennifer Stichman, MDDenver, CO 802621093987323
  35. Chad Stickrath, MDColorado Springs, CO 809091841337102
  36. Melanie Stickrath, MDColorado Springs, CO 809201932246295
  37. Auston StieferAurora, CO 800451356972053
  38. Tracy Stiller, MDLakewood, CO 802281467424259
  39. Richard Stiphout, MDPueblo, CO 810081104953157
  40. James Stjernholm, M.D.Pueblo, CO 810041275545469
  41. Annie StofflerAurora, CO 800121437289295
  42. Christine Stone, M.D.Longmont, CO 805011548643281
  43. David Stone, MDColorado Springs, CO 809091952892853
  44. Kendall Stone, MDDenver, CO 802051790149920
  45. Kirsten Storey, DOFort Collins, CO 805261710298484
  46. Nicolas StoyanovichColorado Springs, CO 809091033485891
  47. Jay Straight, M.D.Denver, CO 802101326121237
  48. Celinde Strohl, MDLittleton, CO 801221912990409
  49. Jon Stuebner, MDCentennial, CO 801121720115454
  50. Quinton Sturdivant, DOColorado Springs, CO 809091720656333

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.