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 437 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. Andrew Suiter, LPCCProfessional Counselor1497610877
  2. Nicholas Suivski, PT, DPTPhysical Therapist1215453188
  3. Lenny Sujdak, DOFamily Medicine Physician1619171436
  4. Saher Suleman, M.D.Neurology Physician1851747935
  5. Leonard Sulik, MDChild & Adolescent Psychiatry Physician1083664130
  6. Lauren Sullenberger, DOInternal Medicine Physician1023377587
  7. Nancy Sullenger, RNSurgery Physician1134263833
  8. Bambi Sullivan, RNAdministrator Registered Nurse1386836807
  9. Breandan Sullivan, MDAnesthesiology Physician1396940615
  10. Cheryle SullivanFamily Medicine Physician1275659880
  11. Derrick Sullivan, OTR/LOccupational Therapist1639889645
  12. Erica Sullivan, LCSWClinical Social Worker1407324718
  13. Gianna Sullivan, RBTBehavior Technician1043800394
  14. Holly Sullivan, REGISTERED DIETITIANRegistered Dietitian1568973816
  15. Jeanne Sullivan, RN, BSNInternal Medicine Physician1740306364
  16. Jonathan SullivanCase Manager/Care Coordinator1881928463
  17. Josephine SullivanPsychiatric/Mental Health Nurse Practitioner1174033922
  18. Kathryne SullivanBehavior Technician1568205102
  19. Marcy Sullivan, RNRegistered Nurse1528308244
  20. Neil Sullivan, M.D.Family Medicine Physician1518002187
  21. Rachel SullivanClinical Social Worker1437984226
  22. Ronin SullivanStudent in an Organized Health Care Education/Training Program1104408285
  23. Sherill Sullivan, B.A.Mental Health Counselor1831221365
  24. Sydney Sullivan, PAMedical Physician Assistant1184341422
  25. Talin Sullivan, FNPNurse Practitioner1770248072
  26. Tawney SullivanStudent in an Organized Health Care Education/Training Program1891212601
  27. Theresa Sullivan, WHNP-BCWomen's Health Nurse Practitioner1053024844
  28. Rebeka SultanaStudent in an Organized Health Care Education/Training Program1619812567
  29. Ersin Sulukioglu, LPCProfessional Counselor1457882995
  30. Nora SumanBehavior Technician1093345126
  31. Jessica Sumber, LCSWClinical Social Worker1275847758
  32. Craig SummerEmergency Medicine Physician1518943372
  33. Lindsay Summerill, PA-CPhysician Assistant1447730130
  34. Christa Summers, MA, NCC, LPCMental Health Counselor1134472616
  35. Clare Summers, OTROccupational Therapist1902308943
  36. Collin SummersBehavior Analyst1891250528
  37. David Summers, LPC, LACCounselor1942683974
  38. Erin Summers, DNP, MSN, BSNWomen's Health Nurse Practitioner1336116516
  39. Madison Summers, DOStudent in an Organized Health Care Education/Training Program1316707433
  40. Tommie Summers, MSWClinical Social Worker1255021333
  41. Bailee Sumner, PTAPhysical Therapy Assistant1033763719
  42. Larry Sumner, O.D.Corneal and Contact Management Optometrist1245255223
  43. Maria Sumner, LMTMassage Therapist1396130910
  44. Kevin SunGeneral Practice Dentistry1215486139
  45. Melis Sunay, NPAcute Care Nurse Practitioner1760139372
  46. Swathy SundaramSocial Worker1033934815
  47. Karen Sundby, M.D.MOHS-Micrographic Surgery Physician1912977083
  48. Steve Sunderman, M.D.Internal Medicine Physician1861529844
  49. Shannon Sundita, PHARMDPharmacist1427207224
  50. Erica SungSocial Worker1578352613

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.