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 61 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. Kristopher Littel, PT, DPT, LAT, ATCPhysical Therapist1235628207
  2. Megan Litwiller, OTROccupational Therapist1790209740
  3. Yong Liu, ACUPUNCTURIST OMDAcupuncturist1588867493
  4. Lauri Liverman, APN. (RN, MSN, PMHNPPsychiatric/Mental Health Nurse Practitioner1508911512
  5. Erin Livers, ICNTNutritionist1881359602
  6. Austin LivingstonUrology Physician1053930123
  7. Jennifer Lloyd, LPCMental Health Counselor1053189530
  8. Sara Loca, MA, LPCCCounselor1043942907
  9. Melissa Locher, ACNPAcute Care Nurse Practitioner1063501658
  10. Melissa LockmanMental Health Counselor1972838332
  11. Jamie LococoMarriage & Family Therapist1790388916
  12. Brenna Lofgren, LMTMassage Therapist1932854676
  13. Alberta LoganProfessional Counselor1366907719
  14. Jordan Logan, N.P.Psychiatric/Mental Health Nurse Practitioner1184053324
  15. Madison Lohmann, WHCNPWomen's Health Nurse Practitioner1174485650
  16. Maura LohrentzMarriage & Family Therapist1538443106
  17. Gail Loker, NNPNeonatal Nurse Practitioner1245218031
  18. Jenai LombardiSpeech-Language Pathologist1588436158
  19. Nicole LombilloSpeech-Language Pathologist1962275628
  20. Beth Lonergan, PSY.D.Psychologist1528120284
  21. Bette Long, PH.D.Clinical Psychologist1417154121
  22. Helen Longanecker Balis, LCSWClinical Social Worker1760503403
  23. Felicia Longenecker, M.D.Internal Medicine Physician1710243217
  24. Marco Longo MerinoMental Health Counselor1932480647
  25. Dorothy LongobardiCase Manager/Care Coordinator1316490717
  26. David Lookner, M.D.Internal Medicine Physician1326175308
  27. Karen Looney, MS. AC, L. AC, DIPL.Acupuncturist1740460831
  28. Emily Lopez, RBTBehavior Technician1649070301
  29. Matthew Loran, M.D.Emergency Medicine Physician1376521641
  30. Nichole LoranBehavior Technician1427733781
  31. Christopher LordAddiction (Substance Use Disorder) Counselor1508271289
  32. Kristine Lorefice, LMSWSocial Worker1205353307
  33. Adriana Lorenzo, N.P.Family Nurse Practitioner1114330040
  34. Grace Lorette, CCC-SLPSpeech-Language Pathologist1235650557
  35. Valerie Lorig, LPCProfessional Counselor1235651571
  36. Alexander Love, L.AC.Acupuncturist1891070033
  37. Ashley Love, PMHNP, RXNPsychiatric/Mental Health Nurse Practitioner1942607825
  38. Erin Love, L.AC., CMTAcupuncturist1407195894
  39. Guy LovePhysical Therapy Assistant1730543596
  40. Gwendilyn LoveLicensed Practical Nurse1255929782
  41. Noel Love, LACAcupuncturist1912201278
  42. Charlotte Lovejoy, LPCC, ATR-PProfessional Counselor1366278806
  43. Briana Lovell, ODOptometrist1023873122
  44. Fiona Lovely, DCChiropractor1023035037
  45. Lila Low-Beinart, MA, LPCCMental Health Counselor1477275089
  46. Sally Lowell, NPFamily Nurse Practitioner1043473499
  47. Chloe Lowery, LMTMassage Therapist1669206959
  48. Timothy Lowney, D.C.Rehabilitation Chiropractor1194886432
  49. Jamie Lowy, LPCCCounselor1275101081
  50. Nicholas LoychikBehavior Technician1073331047

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.