NPPES file of Aug 9, 2026

Doctors and health care providers in Boulder, CO

5,635 individual NPPES records list a practice address in Boulder, 5th of 193 Colorado cities. The largest group is mental health counselor: 1,009, 18% of the city's records, against 6% across Colorado. Page 30 of 113.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

The 8 largest groups in Boulder

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

Boulder in Colorado

  • Rank in Colorado5th of 193 cities by records
  • Share of the state3.8% of Colorado's records
  • Specialties present25 or more taxonomy codes
  • Top three groups29.4% of all records
  • Mental Health Counselor rank2nd of the 10 Colorado cities with the most

Compared with Colorado as a whole, Boulder has 3.9× the state's share of acupuncturist records and 0.47× its share of behavior technician records.

Providers in Boulder, alphabetically

  1. Christine Erbele, RNRegistered Nurse1063897486
  2. Laura Erben, MDInternal Medicine Physician1265637607
  3. Barry Erdman, LCSW, DCSWClinical Social Worker1194874008
  4. Antoinette Erickson, MSW, LCSWClinical Social Worker1962511691
  5. Chrystal Erickson, PAPhysician Assistant1760079420
  6. Karen Erickson, FNP-CFamily Nurse Practitioner1851819981
  7. Paulette Erickson, L.C.S.W.Clinical Social Worker1245401256
  8. Lisa Erikson, DCChiropractor1699930941
  9. Beth Erlander, MA, LPC, ATRProfessional Counselor1053579839
  10. Elizabeth Erley, ODOptometrist1629353172
  11. Steven EsenweinMental Health Counselor1992128664
  12. Jennifer Eshelman, D.C., M.T.Chiropractor1568782118
  13. Joseph Esler, BS, BA, CSCS, CISSNNutritionist1346714656
  14. Bahar Esmaili, DDSGeneral Practice Dentistry1134357627
  15. Ricardo Esparza, PH.D.Clinical Psychologist1427153055
  16. Esmeralda Espinoza ChavezBehavior Technician1861074882
  17. Grace Estakhri, M.S. CCC-SLPSpeech-Language Pathologist1568234151
  18. Randee Estes, M.A.Mental Health Counselor1649503673
  19. Christina Estopinal, LPCCProfessional Counselor1770441370
  20. Robin Etu, MSPTPhysical Therapist1427176809
  21. Kristin EtzelProfessional Counselor1598603888
  22. Brianna EutonPhysical Therapist1598084931
  23. Carolyn Evans, LCSWClinical Social Worker1194957274
  24. David Evans, D.D.S.Dentist1033147764
  25. Kenneth EvansMental Health Counselor1184972721
  26. Leon Evans, MDPsychiatry Physician1982628749
  27. Melissa Evans, PHARMDPharmacist1750799052
  28. Linda Eve, NONEBehavior Technician1023749728
  29. Victoria Evelyn, PAMedical Physician Assistant1114332020
  30. Rachal Everhart, M.S., CCC-SLPSpeech-Language Pathologist1588954606
  31. Dorian Evers, M.ED.Counselor1487205415
  32. Jessica Evers Killebrew, PSY.D.Mental Health Counselor1346368396
  33. Mary Ewers-Dennison, OTR, CHTHand Occupational Therapist1639176407
  34. Peter Ewing, M.D.Family Medicine Physician1043275951
  35. Ashley EyreArt Therapist1164051280
  36. Landrey Fagan, MDFamily Medicine Physician1548423817
  37. Kacey Fagler, PHARMDPharmacist1861911901
  38. Brenda FahnMarriage & Family Therapist1841682820
  39. Marissa FahrbachCertified Registered Nurse Anesthetist1427430032
  40. Robyn Faike, CMTMassage Therapist1164651659
  41. Lorraine Fairmont, CNM, MSN, CLCAdvanced Practice Midwife1053760017
  42. Linda Falb, OTPhysical Rehabilitation Occupational Therapist1063772457
  43. Mary Faltynski, RNRegistered Nurse1659890077
  44. Bradley Fanestil, M.D.Internal Medicine Physician1023156254
  45. Ashley Fanning, FNPNurse Practitioner1093347247
  46. Alec FarbmanMental Health Counselor1417558107
  47. Stephanie Faren, RNSchool Registered Nurse1306419817
  48. Dorothy Faris, MDPsychiatry Physician1174543870
  49. Sarah FarleyMassage Therapist1003321571
  50. Kathleen Farrell, RDRegistered Dietitian1245401835

The largest Colorado cities

  1. Denver25,068
  2. Colorado Springs19,771
  3. Aurora17,400
  4. Fort Collins6,928
  5. Lakewood4,944

All of Colorado →

How to read this directory

Boulder, Colorado appears in the CMS National Plan and Provider Enumeration System with 5,635 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 Boulder - 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 Boulder 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 Boulder is weighted toward Mental Health Counselor (1,009 clinicians, followed by Professional Counselor with 334 and Clinical Social Worker with 316). 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, Boulder reports roughly 95.9 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.

Of Colorado's most common specialties, Student in an Organized Health Care Education/Training Program is the most prominent one with no provider currently listing a Boulder practice address, a coverage gap Boulder patients typically fill by traveling to a larger nearby hub.

For Boulder 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 Boulder, CO?

There are 5,635 registered healthcare providers in Boulder, CO, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Boulder?

The most common specialties in Boulder are Mental Health Counselor, Professional Counselor, Clinical Social Worker, Physical Therapist, Behavior Technician. Mental Health Counselor has the most providers with 1,009.

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.