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 333 of 502.

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

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

The 8 largest groups in Denver

  1. Clinical Social Worker1,836
  2. Mental Health Counselor1,587
  3. Professional Counselor1,126
  4. Registered Nurse1,070
  5. Behavior Technician778
  6. Physical Therapist767
  7. Students in training730
  8. Speech-Language Pathologist716

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. Angela Oliver Piquette, NNPCritical Care Neonatal Nurse Practitioner1912428103
  2. Gabrielle Olivier, MS, CCC-SLPSpeech-Language Pathologist1861138828
  3. Maegan Olivos, D.P.T.Physical Therapist1952728560
  4. Bailee Olliff, M.D.Trauma Surgery Physician1497117428
  5. Adam Olsen, DMDOral and Maxillofacial Surgery (Dentist)1205156478
  6. Blaine Olsen, MDFamily Medicine Physician1588715320
  7. Elizabeth Olsen, DOStudent in an Organized Health Care Education/Training Program1598604456
  8. George Olsen, M.D.Family Medicine Physician1053844415
  9. Jenifer Olsen, PTAPhysical Therapy Assistant1457684532
  10. Jessica Olshesky, CHESHealth Educator1306167648
  11. Adrielle OlsonBehavior Technician1194356675
  12. Aeryal OlsonStudent in an Organized Health Care Education/Training Program1346077732
  13. Amy Olson, MDPulmonary Disease Physician1265409056
  14. Andrew OlsonSocial Worker1871459347
  15. Grant Olson, MDSpecialist1467423087
  16. Julia Olson, LPCMental Health Counselor1457997173
  17. Julie Olson, CNNutrition Education Nutritionist1528478146
  18. Laura Olson, LCSWClinical Social Worker1013155571
  19. Marilyn Olson, COTA/LOccupational Therapy Assistant1619550266
  20. Pamela Olson, RNPsychiatric/Mental Health Registered Nurse1598185316
  21. Ruth Olson, PHARMDPharmacist1861227373
  22. Sharon Olson, PH.D.Clinical Social Worker1003935677
  23. Tyson Olson, MDOphthalmology Physician1346667557
  24. Jennifer Olson-Madden, PHDPsychologist1942418959
  25. Cristiana Oltean, DDSDentist1477859924
  26. Flaviu Oltean, DDSDentist1215268487
  27. Breanna Oltmanns, LSWClinical Social Worker1801402110
  28. Erin Olyer Rohlf, LCSWClinical Social Worker1801224431
  29. Mallory Omahoney, MS, CCC-SLPSpeech-Language Pathologist1225526387
  30. Asad Omar, PHARMDPharmacist1487954228
  31. Hassan OmarDriving and Community Mobility Occupational Therapist1811709652
  32. Fiona Omdal, PTAPhysical Therapy Assistant1942073846
  33. Carol Omeara, NPObstetrics & Gynecology Nurse Practitioner1770626863
  34. Fahtieema OmotoshoSpeech-Language Pathologist1952806010
  35. Phanuel OmuloCounselor1649947136
  36. Maurine Onat, MDInternal Medicine Physician1225129232
  37. Christain OndriezekGastroenterology Registered Nurse1184754921
  38. Danica OneyCase Manager/Care Coordinator1346575008
  39. Gavin Ongsingco, PT, DPT, OCSOrthopedic Physical Therapist1407277619
  40. Idowu Oni, RN, BSN, APN-NP.Registered Nurse1831763903
  41. Keenan Onodera, MDOrthopaedic Trauma Physician1023671146
  42. Claudia Onofrei, MD, MSCPulmonary Disease Physician1972861672
  43. Angelica Onofrio, MSW, LCSWClinical Social Worker1588284772
  44. Eugene Onofrio, CACIIIAddiction (Substance Use Disorder) Counselor1770973216
  45. Jennifer Onstad, M.D.Obstetrics & Gynecology Physician1407931538
  46. Anne Onstott, PMHNPNurse Practitioner1295023430
  47. Joseph Onyiah, M.D.Gastroenterology Physician1508032749
  48. Lindsay OnysioPhysical Therapist1205534690
  49. Joanna Oomkes, PASurgical Physician Assistant1952404345
  50. Candace OpiolaDance Therapist1689536146

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.