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 60 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. Leigh LevesqueNurse's Aide1053437681
  2. John Levhofer, DPTPhysical Therapist1063175776
  3. Adam Levine, D.O.Internal Medicine Physician1306233705
  4. Alison Levine, MDPediatrics Physician1285052928
  5. Karen Levine, L.AC.Acupuncturist1497948434
  6. Robert Levine, M.D.Gastroenterology Physician1124003330
  7. Eric Levinson, PTASpecialist1538387568
  8. Kevin LevittProfessional Counselor1568286540
  9. Alexander LevyBehavior Technician1639637481
  10. Bruce Levy, M.S.Counselor1720136187
  11. Jenna LevyRegistered Nurse1134533656
  12. Michael LevyProfessional Counselor1083002349
  13. Ray Lewey, MA, LPCProfessional Counselor1497385694
  14. Brooke Lewis, PA-CPhysician Assistant1952497646
  15. Courtney Lewis, LCSWClinical Social Worker1902308968
  16. Jeffrey Lewis, M.D.Family Medicine Physician1912326901
  17. John Lewis, OTRSpecialist1922217181
  18. Penelope Lewis, RNRegistered Nurse1801163803
  19. Jennifer LewonSpeech-Language Pathologist1104404151
  20. Liana Leyendecker, B.A.Counselor1851632244
  21. Marisa Leykam, P.T.Physical Therapist1104019173
  22. Linda Li, D.C.Nutrition Chiropractor1861746323
  23. Tiejun Li, L.AC, C.M.T.Acupuncturist1134181977
  24. Tao Li-Stein, MDFamily Medicine Physician1073263968
  25. Diana Licalzi, RD, CDCESRegistered Dietitian1194205054
  26. Marcia Licht, MA, LPCProfessional Counselor1477760536
  27. Beth Lichtenstein, M.A., L.P.C.Mental Health Counselor1992998447
  28. Simone LichtyMental Health Counselor1366778755
  29. David Lieberman, MFTCMarriage & Family Therapist1144946294
  30. Katelin LiebermanStudent in an Organized Health Care Education/Training Program1528911567
  31. Sheila Liewald, L.AC.Acupuncturist1659708675
  32. William Lillydahl, M.D.Otolaryngology Physician1770568982
  33. Li LinAcupuncturist1063794675
  34. Andrew Linares, MAMental Health Counselor1073100814
  35. Brooke LindahlBehavior Technician1194359620
  36. Johanna Lindau, MA, LPCProfessional Counselor1194090902
  37. Sara Lindblom, LMTMassage Therapist1144625906
  38. Julia LindsayBehavior Technician1477031854
  39. Sarah Lindsay, FNPFamily Nurse Practitioner1962393942
  40. Sheila Ling, MDInternal Medicine Physician1487613972
  41. David Link, M.D. MPHGeneral Practice Physician1558389221
  42. Robin Linkenheil, PHARMDPharmacist1699042101
  43. Joshua Linsell, D.P.T.Physical Therapist1154034833
  44. Peter Linsley, CRNACertified Registered Nurse Anesthetist1871524231
  45. Valerie Lipetz, MDInternal Medicine Physician1356323745
  46. Jeffrey Lipnick, LMTMassage Therapist1497195424
  47. Nicholas LiporaceMental Health Counselor1609268648
  48. Morgan LiptonSpeech-Language Pathologist1104114404
  49. Scott Lister, RNAddiction (Substance Use Disorder) Registered Nurse1396359162
  50. Rachel Litsey, M.S., OTR/LOccupational Therapist1568722759

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.