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 415 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. Helene Simons, PSY.D.Clinical Psychologist1457805160
  2. Mona Simons, PACMedical Physician Assistant1346489440
  3. Nancy Simons, DDSPediatric Dentistry1689700148
  4. Ty Simons, DPTPhysical Therapist1679295869
  5. Zachary Simons, MDInternal Medicine Physician1730569476
  6. Kristin Simonson, CNM, WHNPWomen's Health Nurse Practitioner1780267237
  7. Anoush SimonyanMental Health Counselor1104373786
  8. Anthony SimpkinsOccupational Therapy Assistant1265677330
  9. Amy Simpkinson, RNRegistered Nurse1972144954
  10. Amber Simpson, PHARMDPharmacist1073434825
  11. Andrea Simpson, BCBABehavior Analyst1184041022
  12. Claire Simpson, OTR/LOccupational Therapist1750982344
  13. Hallie Simpson, R.N.Registered Nurse1114351368
  14. Holly Simpson, CACIIAddiction (Substance Use Disorder) Counselor1164828547
  15. Joy Simpson, MA LPCProfessional Counselor1992865398
  16. Kailey Simpson, NP-CFamily Nurse Practitioner1134804859
  17. Kimberly SimpsonAcupuncturist1619781689
  18. Pedro Simpson, MDPsychiatry Physician1780857821
  19. Rhonda SimpsonAllergy & Immunology Physician1538203252
  20. Sylvia Simpson, M.D.Psychiatry Physician1023116274
  21. Kristen Simpson-Chandler, LPCProfessional Counselor1386815082
  22. Stacey Simpson-FlemingSpecialist1932432382
  23. Anna Simpson-MillsMental Health Counselor1649723842
  24. Robert Simril, MDGastroenterology Physician1750886099
  25. Jodi Sims, BAContractor1881828721
  26. Martha Sims, RBT-20-8589-249663Behavior Technician1821697384
  27. Susan SimsBehavior Technician1790484004
  28. Valerie Sims, PSY.D.Clinical Psychologist1053781401
  29. Camille SinclairClinical Psychologist1326387663
  30. Paulette SinclairOccupational Therapist1891982997
  31. Singeru Singeo, LPCProfessional Counselor1396436168
  32. Adeline Singer, PAPhysician Assistant1275250870
  33. David Singer, DDSGeneral Practice Dentistry1669500021
  34. Dena SingerPhysician Assistant1528131265
  35. Fred SingerCertified Registered Nurse Anesthetist1326063421
  36. Gordon Singer, MD MSOrthopaedic Surgery Physician1881721819
  37. Haley Singer, RDN, LDNRegistered Dietitian1033820568
  38. Jazz Singer, RBTBehavior Technician1952996340
  39. Jeffrey SingerStudent in an Organized Health Care Education/Training Program1750053682
  40. Melvin Singer, MSWPsychologist1154469401
  41. Rhoda Singer, M.D.Psychiatry Physician1306000914
  42. Alok Singh, M.D., MBAPsychiatry Physician1316328842
  43. Nikita Singh, DDSDentist1356865190
  44. Rupinder Singh, M.D.Internal Medicine Physician1336128131
  45. Ashley SingiserBehavior Technician1225755655
  46. Alishia Singleton, RNGastroenterology Registered Nurse1396889176
  47. Elisa Singleton, RNRegistered Nurse1821448051
  48. Eula SingletonOccupational Therapist1255538013
  49. William Singleton, PAPhysician Assistant1447367008
  50. Krishna Sinha, MDCardiovascular Disease Physician1477567113

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.