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 170 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. Fernando Guarderas, M.D.Family Medicine Physician1467830331
  2. Annie-Pierre Guay, LPCMental Health Counselor1902470990
  3. Myles Guber, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1205805769
  4. Michael Gubnitsky, DCChiropractor1184738064
  5. Sasha Gubser, M.D.Pediatrics Physician1508841271
  6. Ginger GueckNurse's Aide1841429362
  7. Jamie Guedez, MS, LPCProfessional Counselor1063986768
  8. Elizabeth Guedry, ED.S.School Psychologist1699464271
  9. Cassandra Guenther, M.A.Case Manager/Care Coordinator1245375062
  10. Renita GuentherCardiovascular Invasive Specialist/Technologist1831233618
  11. Aaron Guercio, M.D.Surgery Physician1649581638
  12. Karen GuerinRegistered Nurse1477741338
  13. Diane Guerra, PSY.D.Clinical Psychologist1902132285
  14. Katherine GuerraMental Health Counselor1336730068
  15. Alexia Guerrero, MFTCMental Health Counselor1235938127
  16. Donella Guerrero, MSW, LCSWClinical Social Worker1497147698
  17. Jasleen GuerreroCase Manager/Care Coordinator1558024034
  18. Justine GuerreroBehavior Technician1093560781
  19. Diane Guerrero-Ortega, MSWSocial Worker1417086984
  20. John Guerrieri, MDPediatrics Physician1063972867
  21. Regina Guertin, B.S.Mental Health Counselor1801919923
  22. Michael GueseInternal Medicine Physician1669513628
  23. Lauren Guetling, LCSWClinical Social Worker1003450610
  24. Monique Guette, NPPsychiatric/Mental Health Nurse Practitioner1578248241
  25. Andrea Guevara, DPTPhysical Therapist1588298491
  26. Nicholas GuffeyMassage Therapist1558207282
  27. Hillary Guggenheim, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1982539672
  28. Jennifer Guggenheim, MDObstetrics & Gynecology Physician1952443475
  29. Anthony Guglielmo, FNP-BCNurse Practitioner1538549811
  30. Savannah Guglielmo, LCSW, LACClinical Social Worker1306268180
  31. Trevi Guido, DPTPhysical Therapist1497487961
  32. Anna GuidoneSocial Worker1891423646
  33. Megan Guidry, LMFTMarriage & Family Therapist1134609001
  34. James Guilday, LSWMental Health Counselor1467370205
  35. Kaci Guilford, MA, LPCProfessional Counselor1417321399
  36. Zane GuilfoyleProfessional Counselor1831624642
  37. Zoe GuillCounselor1205500030
  38. Ara Guille GreenbergBehavior Technician1548186794
  39. Carlos GuillenCase Manager/Care Coordinator1528722733
  40. Dominique Guillen, LCSWClinical Social Worker1043831084
  41. Kayla Guilliams, MS OTR/LOccupational Therapist1790247278
  42. Lindsey GuinnCase Manager/Care Coordinator1891483798
  43. Sherri Guinn, LPC, NCCMental Health Counselor1275937658
  44. Zachary GuinnBehavior Technician1740080977
  45. Ramon Guitart IgeaProfessional Counselor1982426029
  46. Marta Gulezian, PTGeriatric Physical Therapist1124362660
  47. Amie Gulick, OTROccupational Therapist1639409998
  48. Lauren Gulka, D.M.D.Pediatric Dentistry1871812644
  49. Karen GulleyOrthopaedic Surgery Physician1194852103
  50. Marisa Gullicksrud, LCSWClinical Social Worker1093101669

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.