Doctors and health care providers in Thornton, CO
2,234 individual NPPES records list a practice address in Thornton, 17th of 193 Colorado cities. The largest group is mental health counselor: 244, 11% of the city's records, against 6% across Colorado. Page 23 of 45.
The 8 largest groups in Thornton
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
Thornton in Colorado
- Rank in Colorado17th of 193 cities by records
- Share of the state1.5% of Colorado's records
- Specialties present25 or more taxonomy codes
- Top three groups24.4% of all records
- Mental Health Counselor rank10th of the 10 Colorado cities with the most
Compared with Colorado as a whole, Thornton has 4.7× the state's share of interpreter records and 0.22× its share of behavior technician records.
Providers in Thornton, alphabetically
- Matthew LarimeMental Health Counselor1093835563
- Lilia Larkin, LCSWClinical Social Worker1104375070
- Clara LarsenMarriage & Family Therapist1174347363
- Dawn LarsonBehavior Technician1811431653
- Jamie Lasik, RDHDental Hygienist1720215882
- William LastCounselor1376902528
- Danielle LatherBehavior Technician1528852266
- John Laukkanen, LCSWClinical Social Worker1306268693
- Jeremy Law, MDSpecialist1164446076
- Lisa Laws, LCSWClinical Social Worker1164139259
- Genaro Laynes Odiaga, NPNurse Practitioner1447854708
- Katherine Leak, LCSWClinical Social Worker1619342763
- Wendy Leavell, D.C.Chiropractor1578521837
- Claire Leborgne, MA, SLP-CCCSpeech-Language Pathologist1588208433
- Jill LebsackPhysical Therapist1598920662
- Bryan Lee, PT, DPTPhysical Therapist1447829718
- Edward Lee, DDSGeneral Practice Dentistry1609216720
- Gilliane LeeCounselor1477902658
- Lori LeeMental Health Counselor1780074005
- Mira Lee, MDFamily Medicine Physician1497736722
- Tou Lee, LPCProfessional Counselor1831896299
- Vernon Lee, DO PCFamily Medicine Physician1164511754
- Tina Lefebvre, R.N.Registered Nurse1164695219
- Cynthia LegrandMental Health Counselor1356776637
- Andy Lei, PHARMDPharmacist1922442284
- George Leimbach, M.D.Physical Medicine & Rehabilitation Physician1013902790
- Candice Leimkuhler, MSProfessional Counselor1770673071
- Lisa LeishmanSocial Worker1386579225
- Jessica Lenert, COTAOccupational Therapy Assistant1174084917
- Paul Leo, MDPain Medicine (Anesthesiology) Physician1821006123
- Victoria LeonProfessional Counselor1962751156
- Edward Leone, DMDDentist1598750911
- Erica Leone, MSW, LSWSocial Worker1013069673
- Kristin Lere, D.D.SDentist1689835340
- Stephanie LeroyCounselor1619487881
- Jessica LeungPhysical Therapist1497388151
- Pamela Levett, LPCProfessional Counselor1033321328
- Sarah Levin, M.A.Mental Health Counselor1275085474
- Mark Levstik, DOFamily Medicine Physician1255303459
- Ezra Levy, DOOrthopaedic Surgery Physician1861846818
- Jane Lewis, LPCCMental Health Counselor1386528438
- Marcy Libeer, MA, NCC, LPCProfessional Counselor1184804460
- Susan LibraRegistered Nurse1376849547
- Lynette Lim, DDSDentist1780217745
- Sarah LindDoula1255179651
- Kendall Lindhorst, DPTPhysical Therapist1003464678
- Emily Lindley, LPC, CSAYCProfessional Counselor1669175311
- Laura LipichMental Health Counselor1831444512
- Sarah Litchke, PHARMDPharmacist1548557424
- Kelly LittleObstetrics & Gynecology Physician1992385447
The largest Colorado cities
- Denver25,068
- Colorado Springs19,771
- Aurora17,400
- Fort Collins6,928
- Boulder5,635
How to read this directory
Thornton, Colorado appears in the CMS National Plan and Provider Enumeration System with 2,234 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 Thornton - 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 Thornton 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 Thornton is weighted toward Mental Health Counselor (244 clinicians, followed by Counselor with 162 and Clinical Social Worker with 139). 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, Thornton reports roughly 38 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 Thornton practice address, a coverage gap Thornton patients typically fill by traveling to a larger nearby hub.
For Thornton 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 Thornton, CO?
There are 2,234 registered healthcare providers in Thornton, CO, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Thornton?
The most common specialties in Thornton are Mental Health Counselor, Counselor, Clinical Social Worker, Professional Counselor, Speech-Language Pathologist. Mental Health Counselor has the most providers with 244.
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.