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.

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. Ari Aal, DOPsychiatry Physician1689162596
  2. Ellen Aal, PMHNPPsychiatry Physician1942120043
  3. Marta Aarli, MA, LPCMental Health Counselor1366834350
  4. Angela Aaron, LPCProfessional Counselor1336605294
  5. Hannah AbbeyBehavior Technician1639902984
  6. Jennifer Abbott, PHDPsychologist1417281254
  7. Danny Abboud, DDSGeneral Practice Dentistry1285811679
  8. Alisa AbdulagatovaMental Health Counselor1912286857
  9. Catherine Abel, M.A.Mental Health Counselor1881002574
  10. Margell Abel, P.T.Physical Therapist1831413863
  11. Shannon Aberton, ATCAthletic Trainer1457755035
  12. David Abookire, LMTMassage Therapist1851526115
  13. Lynn AbrahamMassage Therapist1346751203
  14. Belle AbramsonMental Health Counselor1811302508
  15. Bart Abriol, PTPhysical Therapist1093847964
  16. Aleah AbrischMassage Therapist1831421791
  17. Katherine Abu-JaberSpeech-Language Pathologist1306071063
  18. Amy Jo Accardi, LACAcupuncturist1528384898
  19. Geraldine Accomazzo, NPFamily Nurse Practitioner1336263219
  20. Justice Achonu, MDSports Medicine (Orthopaedic Surgery) Physician1821627597
  21. Mary Lou Acimovic, M.A.Speech-Language Pathologist1902853898
  22. Gila Ackerman, M.D.Psychiatry Physician1093884405
  23. Todd Ackerman, CMT, RMT, NMTMassage Therapist1043502537
  24. Dakotah Acosta, MAMental Health Counselor1386396620
  25. Courtney AdairMental Health Counselor1811712284
  26. Brett AdamekMental Health Counselor1366909806
  27. Christine Adams, RMTMassage Therapist1659700300
  28. Jaclyn Adams, ATCAthletic Trainer1386602928
  29. Julisa Adams, MACounselor1497153423
  30. Melanie Adams, PHD, MS, MFTCMarriage & Family Therapist1477436525
  31. Susan Adams, MA, CCC-SLPSpeech-Language Pathologist1871700336
  32. Tara Adams, MSPAS, PA-CSurgical Physician Assistant1013674621
  33. Luke Addington, M.A., L.P.C.Mental Health Counselor1326123332
  34. Stephanie AddissMental Health Counselor1982249678
  35. Reuben AddoSocial Worker1366809022
  36. Arielle Ades, FNP-BCFamily Nurse Practitioner1417625930
  37. Aaron Adler, MDAnesthesiology Physician1932738358
  38. Marilyn Adler, MDPsychiatry Physician1497764823
  39. Michael Adler, DDSGeneral Practice Dentistry1447351895
  40. Sarah Adlerstein, N.D., LAC.Acupuncturist1194908541
  41. James Agati, LPCCMental Health Counselor1053239392
  42. Nora Ahmed-KamalMental Health Counselor1033562038
  43. Sarah Ahn, LSWClinical Social Worker1033577069
  44. Christopher Ahumada, PAPhysician Assistant1093429029
  45. Carolyn Aibel, PH.D.Psychologist1881892495
  46. Monica Ainsworth, MAMental Health Counselor1679985261
  47. Kenneth AipperspachOptician1124217518
  48. Jessica AkosClinical Social Worker1528766615
  49. Gabriela Al-Shamma, RNRegistered Nurse1912725680
  50. Marc Alber, D.D.S.General Practice Dentistry1063598746

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.