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 167 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. Lisa Greisen DufficyPharmacist1124987060
  2. Elliot Greive, MA, LPC, LACProfessional Counselor1538702725
  3. Kayla Gren, RNRegistered Nurse1073069902
  4. Marielle Grenade-Willis, LPCC, NCCMental Health Counselor1245912997
  5. Anique GrenierBehavior Technician1134097231
  6. Kaitlin Grenning, M.S., OTRPediatric Occupational Therapist1588070957
  7. Patricia Grenz, PT, CHTSpecialist1144304403
  8. Phoebe GrenzBehavior Technician1609465228
  9. Maria Gresov, MS, CCC-SLPSpeech-Language Pathologist1841959871
  10. Melissa Gressner, PSY.D.Clinical Psychologist1700046448
  11. Courtney Greth, ATC, LMTMassage Therapist1073028031
  12. Arjun Grewal, DOStudent in an Organized Health Care Education/Training Program1619728458
  13. Lubna Grewal, M.D.Psychiatry Physician1235440413
  14. Anne-Marie Grewer, N.P.Ambulatory Women's Health Care Registered Nurse1801838289
  15. Cameron Gridley, PSY.D.Clinical Psychologist1104186105
  16. Jason Gridley, D.C.Chiropractor1891909537
  17. Anna-Maria Griego, RNRegistered Nurse1821235250
  18. Eliana Griego, MDEmergency Medicine Physician1528717295
  19. Ethan GriegoProfessional Counselor1760020903
  20. Kristen Griego, MA, LPCProfessional Counselor1417591454
  21. Stephanie Griego, FNPFamily Nurse Practitioner1285150797
  22. Thomas Griesemer, PTPhysical Therapist1902933963
  23. Geralynn Grieve, P.T.Physical Therapist1609956143
  24. Courtney Griffin, MA,MSWClinical Social Worker1104022748
  25. Helen GriffinNurse's Aide1720205149
  26. Jason Griffin, C-PED, BOCO, CPAProsthetist1841859212
  27. Joan GriffinRegistered Nurse1093859886
  28. Kit Griffin, MA, LPC, NCCMental Health Counselor1851982870
  29. Lizabeth GriffinLicensed Practical Nurse1699001446
  30. Meagan Griffin, RDNRegistered Dietitian1831055094
  31. Megan GriffinStudent in an Organized Health Care Education/Training Program1215609227
  32. Michael GriffinPhysical Therapist1821542580
  33. Michael Griffin, RNRegistered Nurse1881574721
  34. Rachael GriffinMassage Therapist1366165169
  35. Sandra Griffin, LCSWProfessional Counselor1801003116
  36. Theda Griffin, M.ED.Mental Health Counselor1073647376
  37. Brooklynn GriffisBehavior Technician1326834318
  38. Abbey Griffith, PAPhysician Assistant1811653439
  39. Amanda GriffithGerontology Nurse Practitioner1699329029
  40. Christopher Griffith, MDInternal Medicine Physician1144563321
  41. David Griffith, MDInfectious Disease Physician1245229301
  42. Jenna Griffith, MA, LPCProfessional Counselor1306363874
  43. Kayla Griffith, M.D.Surgical Oncology Physician1811139447
  44. Kristin GriffithMental Health Counselor1255880837
  45. Mary Griffith, MSN, CPNPRegistered Nurse1366512097
  46. Michael Griffith, PTAPhysical Therapy Assistant1417370891
  47. Ryan Griffith, M.D.Surgery Physician1790027712
  48. Evan GriffithsOther Technician1154738789
  49. Leonard Griffiths, MDAnesthesiology Physician1982680393
  50. Thomas Griffiths, MDAnesthesiology Physician1811217250

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.