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 258 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. Kathryn Lewis, PA-CPhysician Assistant1316376247
  2. Kirk LewisDentist1346974342
  3. Kristina Lewis, P.A.-CMedical Physician Assistant1124332978
  4. Lauren Lewis, AU.D.Audiologist1992160030
  5. Linda Lewis, PHDSpeech-Language Pathologist1649304130
  6. Linda Lewis, MSW,LCSWClinical Social Worker1508039181
  7. Lisa Lewis, M.S., CCC-SLPSpeech-Language Pathologist1245110543
  8. M. Christine Lewis, EDS, LPCProfessional Counselor1447473756
  9. Marjorie Lewis, PHDMarriage & Family Therapist1629323969
  10. Matthew Lewis, MDStudent in an Organized Health Care Education/Training Program1003953373
  11. Michael Lewis, DOInternal Medicine Physician1992381693
  12. Nekeata LewisSocial Worker1144918053
  13. Rachel Lewis, LCSWClinical Social Worker1891351441
  14. Rachel Lewis, ODOptometrist1780201582
  15. Samantha Lewis, CRNPFamily Nurse Practitioner1013429513
  16. Stacie Lewis, OTR/LOccupational Therapist1538359005
  17. Stuart Lewis, MDOphthalmology Physician1700874765
  18. Vanessa LewisChiropractor1043069792
  19. Vincent LewisAddiction (Substance Use Disorder) Counselor1710359013
  20. William Lewis, PHDClinical Psychologist1063485605
  21. Paulensia Lewis Shepard, LPNLicensed Practical Nurse1023314085
  22. Laurent Lewkowiez, MDCardiovascular Disease Physician1811002496
  23. Colleen Ley, RNPreventive Medicine/Occupational Environmental Medicine Physician1679617385
  24. Peter Leypold, OTR/LOccupational Therapist1811551831
  25. Anjelica Leyva, MSWClinical Social Worker1811227309
  26. Benjamin LiEmergency Medicine Physician1578958344
  27. Fengxin Li, DOStudent in an Organized Health Care Education/Training Program1255950184
  28. Jessie LiPhysician Assistant1508501925
  29. Katie Li, LPCCProfessional Counselor1053249441
  30. Qingxia LiElectroneurodiagnostic Specialist/Technologist1528636784
  31. Thomas Li, MDInternal Medicine Physician1023005576
  32. Yinghua LiAcupuncturist1063838621
  33. Zhi LiMassage Therapist1154742641
  34. Si Si LiaInterpreter1639031883
  35. Janice Liao, M.D.Ophthalmology Physician1538303789
  36. Michael LiaoEmergency Medicine Physician1336174101
  37. Peggy Liao, MDDermatology Physician1699799379
  38. Timothy Liao, M.D.Vascular Surgery Physician1649432170
  39. Anna Libby, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1205168622
  40. Kathy Liberatore, RN, MN, CNSClinical Nurse Specialist1881660280
  41. Shannon Librizzi, RD, MSRegistered Dietitian1215826052
  42. Jordan Licari, RBTBehavior Technician1699341107
  43. Tori LichMental Health Counselor1053140236
  44. Rebecca Lichlyter, LPCMental Health Counselor1235978305
  45. Alan Lichtenberg, MDNeuromusculoskeletal Medicine & OMM Physician1023178324
  46. Deborah Lichtenberg, RPH.Pharmacist1992794358
  47. Gary Lichtenberger, M.D.Internal Medicine Physician1548370075
  48. Kristen LideenRegistered Nurse1730508227
  49. Debbie LidorHomemaker1053967117
  50. Alan Lidsky, MDInternal Medicine Physician1619007556

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.