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 278 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. Tyler Marone, ATCAthletic Trainer1689066201
  2. Jaime Maroney, LCSWClinical Social Worker1891564233
  3. Maria Marquardt, L.P.N.Licensed Practical Nurse1588818678
  4. Matthew MarquardtCounselor1992441414
  5. Angelita MarquezCounselor1841519949
  6. Christian MarquezCounselor1457144172
  7. Jolie MarquezPhysical Therapy Assistant1255017703
  8. Jorge MarquezOther Technician1851765309
  9. Jose Marquez, PHARMDCounselor1366258006
  10. Maria MarquezMassage Therapist1841761608
  11. Stephanie MarquezPharmacist1447686878
  12. Misty Marquez Lozano, MA, LPCCounselor1497905962
  13. Nancy Marquez MontoyaBehavior Technician1629961198
  14. Louise Marquino, PA-CPhysician Assistant1508372491
  15. Amy Marr, PTPhysical Therapist1699065201
  16. Nikolaos MarrasPharmacist1316562572
  17. Cynthia Marren, DCChiropractor1104012194
  18. Gabriel MarreroMassage Therapist1720634124
  19. Carly MarronClinical Social Worker1235736893
  20. Consuelo MarroquinPsychiatric/Mental Health Registered Nurse1912023557
  21. Delores Marrs, NPPediatric Nurse Practitioner1720200033
  22. Theresa Marschik, LCSWClinical Social Worker1669864583
  23. Carmen Marsh, LPN IV-2Licensed Practical Nurse1073786588
  24. Fedrick Marsh, CAC IIIAddiction (Substance Use Disorder) Counselor1639470990
  25. Kristin Marsh, M.A., CCC-AAudiologist-Hearing Aid Fitter1073774600
  26. Lauren A Marsh, MSWSocial Worker1912424524
  27. Pamela Marsh, PSY.D., LCSWClinical Social Worker1245309608
  28. Tyler MarshMental Health Counselor1205292117
  29. William Marsh, M.D.Allergy & Immunology Physician1447394168
  30. Charles Marshall, MDInternal Medicine Physician1568573905
  31. Debra Marshall, M.A., LPCProfessional Counselor1720225139
  32. Eva Marshall, M.D.Obstetrics & Gynecology Physician1477088342
  33. Gingerlee Marshall, RPSGT, CCSHRespiratory/Developmental/Rehabilitative Specialist/Technologist1114642956
  34. Isabelle Marshall, PT, DPTPhysical Therapist1326821307
  35. Kathy Marshall, RNRegistered Nurse1982866745
  36. Ladean Marshall, WHNPWomen's Health Nurse Practitioner1235603242
  37. Lindsay Marshall, LCSWAddiction (Substance Use Disorder) Counselor1043510365
  38. Mark Marshall, M.D.Psychiatry Physician1295735595
  39. Meridith Marshall, MFTCMental Health Counselor1578244919
  40. Michelle MarshallRegistered Dietitian1669307807
  41. Random MarshallBehavior Technician1083560171
  42. Setsu Marshall, LOJOccupational Therapist1285846261
  43. Tahaijanae MarshallBehavior Analyst1588280317
  44. Wanda Marshall, ARNPPediatric Nurse Practitioner1366438202
  45. Zero MarshallBehavior Technician1649089228
  46. Michael Marsico, MSW, LCSWClinical Social Worker1548812886
  47. Alicia Martel, LSWSocial Worker1851144125
  48. Rita Martel, NPNurse Practitioner1386747228
  49. Chad Martell, PHARM.D.Pharmacotherapy Pharmacist1366780439
  50. Amanda MartensRegistered Nurse1063780039

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.