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 27 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
- Lydi Maine-Pope, L.C.S.W.Clinical Social Worker1265688444
- Rachel MajorsDoula1356155238
- Troy Malcom, D.O.Urology Physician1861610925
- Colton Malesovas, MDPhysical Medicine & Rehabilitation Physician1568090124
- Susan Malin, LMTMassage Therapist1760695928
- Molly MalinskiBehavior Analyst1457933533
- Josie Mallinckrodt, DVMVeterinarian1538577838
- Amanda Malone, CAC IIIAddiction (Substance Use Disorder) Counselor1881098226
- Mark Malone, PAPhysician Assistant1164456984
- Dawn Malsom, PACPhysician Assistant1275664047
- Erin Manak, PA-CPhysician Assistant1982056719
- Eric Manchester, PHARMDPharmacist1851734800
- Troy Manchester, M.D.General Practice Physician1689692139
- Konoy Mandal, MDPsychiatry Physician1518954866
- Tanya Mander, MOT, OTR/LOccupational Therapist1003280256
- Jacquelyn MannhardSpeech-Language Pathologist1366823668
- Matthew Manry, MDRetina Specialist (Ophthalmology) Physician1366735243
- Jesseca Manson, PHD, LPC, NCC, RPTProfessional Counselor1417684481
- Jonathan Manto, P.A.Medical Physician Assistant1871730101
- Lori Maran, M.D.Rheumatology Physician1740373687
- Latonya MarchBehavior Technician1013686237
- Caroline MarcotteAdult Health Nurse Practitioner1942814462
- Christie Marcotte, CSFASurgical Physician Assistant1356440382
- Sarah MarcusSpeech-Language Pathologist1235692914
- Erika Marie, DACMAcupuncturist1316281785
- Qiyra Marie, MPTPhysical Therapist1801198288
- Heather Markus, PT, DPTOrthopedic Physical Therapist1083072243
- Lynn Marlow, M.A.Mental Health Counselor1093922494
- Gabriela Marquez, LCSWClinical Social Worker1093662637
- Jennifer Marr, MSW, SWCSocial Worker1316665078
- Amanda Marrero, LPCProfessional Counselor1619724523
- John Mars, MDPreventive Medicine/Occupational Environmental Medicine Physician1316077506
- Emilie Martel-RousseauAdult Health Nurse Practitioner1912783895
- Ann Martin, M.D.Obstetrics & Gynecology Physician1891792594
- Jason Martin, PAPhysician Assistant1730265315
- Katie Martin, FNP-CFamily Nurse Practitioner1083291827
- Selena Martin, B.S.Mental Health Counselor1780738906
- Shelby MartinAudiologist1386587178
- Claudia Martin-Williams, PA-CPhysician Assistant1235191503
- Kaceee Martinez, RBT, CPRBehavior Analyst1386354926
- Michael Martinez, MDPediatrics Physician1023152824
- Samantha Martinez, BCBABehavior Analyst1023609849
- Joey Martsolf, CRNACertified Registered Nurse Anesthetist1649461716
- Eric Mast, D.O.Family Medicine Physician1427346287
- Terry Mast, MNTNutritionist1518455930
- Robert Masteller, D.C.Orthopedic Chiropractor1275630535
- Dewey MastonCounselor1679785372
- Jennifer Matheson, PHDMarriage & Family Therapist1598145096
- Regina Matranga, MA CF-SLPSpeech-Language Pathologist1396350369
- Linda Matthews, M.D.Maternal & Fetal Medicine Physician1609801646
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.