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 31 of 48.
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
- Andrew Namkoong, RPHPharmacist1477426294
- Matthew Nape, PTAPhysical Therapy Assistant1013673250
- Lorene Nardell, OTROccupational Therapist1972932887
- Brittany NeddermanBehavior Analyst1790136166
- Leah Neff, LMTMassage Therapist1912341900
- Kathryn NeibergerBehavior Analyst1992663488
- Brian Nelson, MDUrogynecology and Reconstructive Pelvic Surgery (Obstetrics & Gynecology) Physician1619974318
- Jennifer Nelson, M.ED, M.S.Marriage & Family Therapist1154082063
- Melissa Nelson, LPCProfessional Counselor1588320865
- Richard NelsonMental Health Counselor1942494968
- Susan Nelson, NPFamily Nurse Practitioner1922005651
- Myles NeroBehavior Technician1659233112
- Lori Nessler, COTAOccupational Therapy Assistant1568815058
- Elyssa Neurohr, OTR/LOccupational Therapist1982263059
- Ann Nevin, LPC, CAC IIAddiction (Substance Use Disorder) Counselor1760460224
- Logan Newens, ADC, LPCCMental Health Counselor1922885276
- Ngoc-Hieu Nguyen, PA-CPhysician Assistant1194477687
- Susan Nicholson, FNPFamily Nurse Practitioner1558480756
- Daryl Nielsen, LPNLicensed Practical Nurse1073776217
- Nicole Niles, RDHDental Hygienist1699545046
- Mark Nimmo, DCChiropractor1134314842
- Joseph Nissim, MDInternal Medicine Physician1780765024
- Carl Noble, DORetina Specialist (Ophthalmology) Physician1013255991
- Benjamin Nolan, DVMVeterinarian1063820363
- Blake Nordstrom-WehnerMental Health Counselor1275328239
- Saleena NormanleierBehavior Technician1477217503
- Kirsten Norr, LPCCMental Health Counselor1013796945
- Angela NorrisBehavior Analyst1407788417
- Margaret Norris, PH.D.Clinical Psychologist1669428207
- Daniel Norton, PAPhysician Assistant1245216381
- Robert Nouhan, MDFamily Medicine Physician1144205303
- Allison Novak, MS, LPCMental Health Counselor1033749965
- Natalie NovelliBehavior Technician1942989132
- Geordan Nunes, PT, DPTPhysical Therapist1407571219
- Pamela NunezInterpreter1205706876
- Aglaury Nunez Morales, MSClinical Psychologist1205328986
- Cameron Nyman, D.CChiropractor1427478544
- Trinity Nyx, LPCProfessional Counselor1811539430
- Janelle O'Boyle, ED.D., LPCMental Health Counselor1639343213
- Caitlin O'Connell, MS, CCC-SLPSpeech-Language Pathologist1649041567
- Jocelyn O'Connor, LACAcupuncturist1871002642
- Patricia O'Connor, PH.D.Psychologist1487899340
- Kathleen O'Connor-Vasquez, M.A.Mental Health Counselor1366570897
- Steven O'Dell, D.C.Chiropractor1699812875
- Stephanie O'Grady, OTR, DPTOccupational Therapist1972994895
- Mary O'Halloran, LPPsychologist1477123511
- Megan O'HigginsBehavior Analyst1265354500
- Micah O'LearyBehavior Analyst1770301491
- Gregory O'Malley, PHARMDPharmacist1053611889
- Kate O'NeillPharmacist1740139179
The largest Colorado cities
- Denver25,068
- Colorado Springs19,771
- Aurora17,400
- Fort Collins6,928
- Boulder5,635
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.