NPPES file of Aug 9, 2026

Doctors and health care providers in Longmont, CO

2,381 individual NPPES records list a practice address in Longmont, 16th of 193 Colorado cities. The largest group is mental health counselor: 184, 8% of the city's records, against 6% across Colorado. Page 10 of 48.

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

The 8 largest groups in Longmont

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

Longmont in Colorado

  • Rank in Colorado16th of 193 cities by records
  • Share of the state1.6% of Colorado's records
  • Specialties present25 or more taxonomy codes
  • Top three groups18.7% of all records

Compared with Colorado as a whole, Longmont has 3× the state's share of behavior analyst records and 0.43× its share of behavior technician records.

Providers in Longmont, alphabetically

  1. Teresa Daley, MA, CCC-SLPSpeech-Language Pathologist1205242831
  2. Kathryn Damby, FNPNurse Practitioner1306735501
  3. Rachel DanaBehavior Technician1982278727
  4. Erica Danik, PA-CPhysician Assistant1073109476
  5. Jayne DarlingCounselor1972308633
  6. Antoinette Dasilva-Fausto, LPCProfessional Counselor1982139465
  7. Heidi Daudt, LCSWClinical Social Worker1558023705
  8. Elysa Davidson, LPNLicensed Vocational Nurse1356539654
  9. Sharon DaviesLicensed Practical Nurse1316142300
  10. Teresa Davies, D.C.Chiropractor1649228107
  11. Jody Davis, DDSGeneral Practice Dentistry1790927366
  12. Lauren DavisBehavior Technician1447826490
  13. Kai DavisonMental Health Counselor1962321752
  14. John Daw, O.D.Sports Vision Optometrist1700960291
  15. Jimmy De Herrera, C.A.S. IIAddiction (Substance Use Disorder) Counselor1598112112
  16. Diva De Leon Coffin, BCBABehavior Analyst1417616350
  17. Paula De Oliveira Santos, MAMental Health Counselor1912481631
  18. Sophia De St SimonBehavior Technician1326971946
  19. Justin Deal, O.D.Optometrist1134400054
  20. Amanda Dean, MA CCC SLPSpeech-Language Pathologist1124453550
  21. Amanda Dean, CLCProfessional Counselor1124540695
  22. Lauren DeanBehavior Analyst1588550297
  23. Todd Deboom, MDSpecialist1306873823
  24. Daniel Decino, B.A.Case Manager/Care Coordinator1043330608
  25. Amanda DeckelbaumMental Health Counselor1003639568
  26. Anthony Declusin, MDNeurology Physician1669977997
  27. Donna DeffkeAddiction (Substance Use Disorder) Counselor1982229621
  28. Eric Defonso, LMTMassage Therapist1851063358
  29. Alexis Deignan, LCSW, MSWClinical Social Worker1568070704
  30. Anastasia DejulioMassage Therapist1497521132
  31. Kaitlyn Delancey, DDSDentist1760906820
  32. Bryant Delgado, M.D.Pulmonary Disease Physician1376740308
  33. Anthony DelmonicoBehavior Technician1245179324
  34. Karen Delvecchio, NPNurse Practitioner1164421665
  35. Karen Dempsey, RN MSN CSClinical Nurse Specialist1255463139
  36. Christopher DemunninkBehavior Analyst1710871843
  37. Grant DemuthBehavior Analyst1619838919
  38. Jennifer DeplerMental Health Counselor1063232056
  39. Barbara Depriest, NPNurse Practitioner1497006175
  40. Kalen DeremoMental Health Counselor1134951627
  41. Stephanie Dettlebach, M.D.Family Medicine Physician1629145990
  42. Julie Devlin, DDSDentist1417006875
  43. Simone DevriesDoula1598042004
  44. Heather Dewitt, LMTMassage Therapist1376237511
  45. Lerin Dhein, RNOncology Registered Nurse1508745399
  46. Katherine Dibattisto, LCSWClinical Social Worker1225684145
  47. Anthony Dicicco, RDRegistered Dietitian1942169172
  48. Nichole Didelot, CPM, CLCMidwife1528480373
  49. Dana DietrichVeterinarian1215345467
  50. Lauren Dilorenzo, DDSStudent in an Organized Health Care Education/Training Program1174261531

The largest Colorado cities

  1. Denver25,068
  2. Colorado Springs19,771
  3. Aurora17,400
  4. Fort Collins6,928
  5. Boulder5,635

All of Colorado →

How to read this directory

Longmont, Colorado appears in the CMS National Plan and Provider Enumeration System with 2,381 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 Longmont - 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 Longmont 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 Longmont is weighted toward Mental Health Counselor (184 clinicians, followed by Physical Therapist with 145 and Massage Therapist with 116). 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, Longmont reports roughly 40.5 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.

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 Longmont practice address, a coverage gap Longmont patients typically fill by traveling to a larger nearby hub.

For Longmont 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 Longmont, CO?

There are 2,381 registered healthcare providers in Longmont, CO, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Longmont?

The most common specialties in Longmont are Mental Health Counselor, Physical Therapist, Massage Therapist, Professional Counselor, Clinical Social Worker. Mental Health Counselor has the most providers with 184.

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.