NPPES file of Aug 9, 2026

Doctors and health care providers in Denver, CO

25,068 individual NPPES records list a practice address in Denver, 1st of 193 Colorado cities. The largest group is clinical social worker: 1,836, 7% of the city's records, against 5% across Colorado. Page 385 of 502.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

The 8 largest groups in Denver

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

Denver in Colorado

  • Rank in Colorado1st of 193 cities by records
  • Share of the state16.8% of Colorado's records
  • Specialties present25 or more taxonomy codes
  • Top three groups18.1% of all records
  • Clinical Social Worker rank1st of the 10 Colorado cities with the most

Compared with Colorado as a whole, Denver has 1.8× the state's share of psychiatry physician records and 0.39× its share of behavior technician records.

Providers in Denver, alphabetically

  1. Michelle Roy, PHDClinical Psychologist1770816910
  2. Brandon Roy-Garland, MDVascular Surgery Physician1235454497
  3. Don Royal, D.C.Orthopedic Chiropractor1073690657
  4. Timothy Royal, MDHospitalist Physician1598909145
  5. Lilly RoybalAttendant Care Provider1700425717
  6. Phillip RoybalAthletic Trainer1720643182
  7. Nathaniel Royer, D.P.T.Physical Therapist1497187322
  8. Nathaniel Roysden, M.D.Psychiatry Physician1598129215
  9. Moshe Rozdzial, LPCProfessional Counselor1356495840
  10. Michelle Rozenman, PH.D.Clinical Psychologist1215256284
  11. Jeanne Rozwadowski, MDInternal Medicine Physician1760591382
  12. Jill RozynskiRegistered Nurse1740144658
  13. Cora RubalMental Health Counselor1518889054
  14. Nathan Rubalcava, M.D.Pediatric Surgery Physician1801282272
  15. John RubanoSpecialist1316883663
  16. Sabrina Rubaud, LICSW,LCSWMental Health Counselor1376396952
  17. Lindsey Rubens, MAProfessional Counselor1528681806
  18. Nicole Rubenstein, R.D, C.D.NRegistered Dietitian1033307467
  19. Richard Rubenstein, MDInternal Medicine Physician1417999392
  20. Robert Rubey, MDGeriatric Psychiatry Physician1841264819
  21. Alexander Rubin, M.DAnesthesiology Physician1164407334
  22. Benjamin Rubin, MDNeurological Surgery Physician1124294731
  23. Jerry Rubin, MDPediatrics Physician1235243411
  24. Madeline RubinStudent in an Organized Health Care Education/Training Program1205650157
  25. Mark Rubin, MDAnesthesiology Physician1487620761
  26. Spencer Rubin, LMTMassage Therapist1578430344
  27. Roni Rubins, PSYDClinical Psychologist1730621384
  28. Samuel Rubinson, MDSpecialist1821065111
  29. Thomas Rubinson, CNIMElectroneurodiagnostic Specialist/Technologist1861709271
  30. Trudy Rubinson, NPNurse Practitioner1275671166
  31. George RubinsteinClinical Social Worker1073244547
  32. Elizabeth RubioStudent in an Organized Health Care Education/Training Program1023625753
  33. Cynthia Rubio-Festa, PHARMDPharmacist1932678372
  34. Diane Ruby, MS, LPC, CAC IIIProfessional Counselor1710045356
  35. Casey RuchMental Health Counselor1265812416
  36. Sadie RuckelBehavior Technician1710690094
  37. Collin Rucker, LPCCMental Health Counselor1356267439
  38. Kim Rucker, N.P.Family Nurse Practitioner1598916371
  39. Lauren Rucker, RN, IBCLCLactation Consultant (Registered Nurse)1700619590
  40. Lisa Ruda, CSFASurgical Assistant1619221215
  41. Shauna Ruda, LCSWClinical Social Worker1396416319
  42. Alyssa Rudawsky, DDSGeneral Practice Dentistry1841720265
  43. Joshua Rudder, LPCCMental Health Counselor1235782830
  44. Noah Rudder, ATCAthletic Trainer1346630860
  45. Clare Rudman, DOInternal Medicine Physician1982282265
  46. Rira Rudnick, FNPFamily Nurse Practitioner1831766583
  47. Katie Rudofsky, FNP-CFamily Nurse Practitioner1154710200
  48. Merritt Rudolph, MD PCSpecialist1033171483
  49. Nicole RudolphBehavior Analyst1629612064
  50. Judith Rudolph Nesbitt, MFTCMarriage & Family Therapist1922815927

The largest Colorado cities

  1. Colorado Springs19,771
  2. Aurora17,400
  3. Fort Collins6,928
  4. Boulder5,635
  5. Lakewood4,944

All of Colorado →

How to read this directory

Denver, Colorado appears in the CMS National Plan and Provider Enumeration System with 25,068 registered healthcare providers spanning 25 or more distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in Denver - physicians, dentists, nurse practitioners, physician assistants, chiropractors, physical therapists, optometrists, psychologists, podiatrists, and every other credentialed provider type CMS tracks. It does not measure hospital beds, urgent-care capacity, or whether a given clinic is accepting new patients; it measures the pool of professionals with current NPI enrollment and a Denver practice location on file. Every figure is drawn from the federal National Provider Identifier Registry (CMS NPPES) - more than 7 million providers, maintained since May 2007, with 2024 Medicare Part D data, and, according to CMS, can be searched, compared, and traced in our methodology.

The provider mix in Denver is weighted toward Clinical Social Worker (1,836 clinicians, followed by Mental Health Counselor with 1,587 and Professional Counselor with 1,126). That distribution reflects how NPPES records specialty: providers self-select a primary taxonomy code, so a family physician who also practices geriatrics will show up under whichever NUCC code they registered first. Relative to Colorado's population, Denver reports roughly 426.5 providers per 100,000 residents using the state-level denominator, which is a rough proxy rather than a precise access-to-care measurement; the true catchment area of any {cityName} clinician extends beyond the municipal boundary.

For Denver patients, this directory is most useful as a starting shortlist. Important: PlainDoctor is a directory of publicly available CMS government data, not a review site, a ranking, or medical advice. NPPES data is self-reported and refreshed monthly; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients.

For informational purposes only; this directory is not medical advice and not a substitute for checking a license. See also: how to find a doctor and how to verify one.

Common questions

How many doctors are in Denver, CO?

There are 25,068 registered healthcare providers in Denver, CO, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Denver?

The most common specialties in Denver are Clinical Social Worker, Mental Health Counselor, Professional Counselor, Registered Nurse, Behavior Technician. Clinical Social Worker has the most providers with 1,836.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov). Records are self-reported registrations, not licenses.

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.