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 325 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. Noreedn Nicol, NPRegistered Nurse1114004108
  2. Joan Nicoletti, NPSonography Radiologic Technologist1205058534
  3. Debra NicollObstetrics & Gynecology Physician1205970084
  4. Mary Nicoll, LPC CANDIDATEMental Health Counselor1104232982
  5. Twinkle NiculaePhysical Therapist1457664112
  6. Hilary Nieberg Baskin, DDSOrthodontics and Dentofacial Orthopedics Dentistry1538376124
  7. Alicia NiedSpeech-Language Pathologist1184077430
  8. Sara Nieder, LCSWClinical Social Worker1427433549
  9. William Niederhut, M.D.Psychiatry Physician1982639084
  10. Veronica Niedzinski, MS,RDNRegistered Dietitian1750849113
  11. Cole Nielsen, PAPhysician Assistant1851867287
  12. Erin Nielsen, LCSWClinical Social Worker1629473111
  13. John Nielsen, MFT LPCProfessional Counselor1083031009
  14. Kate Nielsen, LCSWClinical Social Worker1043594989
  15. Lindsey NielsenMarriage & Family Therapist1891354890
  16. Melissa NielsenSocial Worker1093338493
  17. Debra Nielson, PSY.D.Clinical Psychologist1265640627
  18. Clinton Nieman, LPCProfessional Counselor1619572401
  19. Gary Niemann, MDAllergy Physician1962555458
  20. Brent Nienaber, CNIMElectroneurodiagnostic Specialist/Technologist1053585174
  21. Luc Nierat, MS, LAC.Acupuncturist1598988487
  22. Megan Niermann, DPTPhysical Therapist1851051684
  23. Elizabeth Nies, RDHDental Hygienist1972980084
  24. Elisabeth Nietch, CMT, LMTSpecialist1306970942
  25. Brittany Nieto, MA, LPCMental Health Counselor1972132710
  26. Alison Nieves, LCSWClinical Social Worker1336541085
  27. Enid NievesMental Health Counselor1154071843
  28. Elizabeth Niffenegger, SLPSpeech-Language Pathologist1669893061
  29. Carol Niforatos, D.D.SDentist1700925682
  30. Christopher Nightengale, MDAnesthesiology Physician1760469746
  31. John NigroPeritoneal Dialysis Registered Nurse1316751183
  32. Emily Nikoley, LPCCMental Health Counselor1497467112
  33. Andrew Nill, MDFamily Medicine Physician1134234115
  34. Kristin NilssonSocial Worker1437682192
  35. Lina NilssonAthletic Trainer1851856108
  36. Kate Nimocks, AU.D.Audiologist1205223864
  37. Marilyn Nishimoto, R.N.Registered Nurse1003065426
  38. Terri Nishimoto, P.T.Physical Therapist1891745998
  39. Roger Nishimura, D.D.S.,P.C.General Practice Dentistry1417054313
  40. Janet Nissen, MA SLP CCCSpeech-Language Pathologist1063503811
  41. Allison Nitsch, MDInternal Medicine Physician1831488790
  42. Gary Nitta, LPCAddiction (Substance Use Disorder) Counselor1689634412
  43. Jacqueline Nitta, COTAOccupational Therapy Assistant1124140512
  44. Laura Niver, PSY.D.Psychologist1962766659
  45. Garrett Nix, MDOphthalmology Physician1023696275
  46. Natalie Nix, PHARM DPharmacist1427358514
  47. William NixMental Health Counselor1033951264
  48. Ngozi Nnunukwe, MDGeneral Practice Physician1326482464
  49. Angie Noack, LPCProfessional Counselor1407494560
  50. Amanda Noah, PHARMDPharmacist1972937688

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.