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 41 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
- Taylor Tretheway, DPTPhysical Therapist1972241206
- Albert TrevinoRegistered Nurse1770010266
- Sarah Triffleman, MLISMental Health Counselor1376679480
- Mariah Tritz, LMTMassage Therapist1952035974
- Robert Trommeter, M.D.Emergency Medicine Physician1760879563
- Martha Trower, NPNeonatal Nurse Practitioner1174742886
- Susan TroyDoula1134472590
- Marcelina Trujillo, CAC IIIAddiction (Substance Use Disorder) Counselor1255685798
- Sara Trujillo, C.O.T.A.Occupational Therapy Assistant1780791228
- Sophia Trujillo, PT, DPTPhysical Therapist1053067827
- Tamara TrujilloSpeech-Language Pathologist1710763982
- Mayte Trujillo Bermeo, BAAddiction (Substance Use Disorder) Counselor1326571738
- Jean Tsai, LCSWClinical Social Worker1740594258
- Cayce Tschirhart, ODOptometrist1780577528
- Hillary TsucalasSocial Worker1700362167
- Jamie Anne Elizah Tubao, PHARMDPharmacist1003481037
- Anna TubisRegistered Nurse1053686980
- Cynthia Tucker, MDObstetrics & Gynecology Physician1366437998
- Stefanie TurkMental Health Counselor1003302118
- Phillip TurnerPhysical Therapist1891368726
- Teeal Turner, RPHPharmacist1700481751
- Kiralyn TuttleMental Health Counselor1285291922
- Kozue Tyler, AU.D.Audiologist1891946562
- Melanie Tyler, MA, LPCMental Health Counselor1437787991
- Leeann Tyrrell, ODOptometrist1619010881
- Jevin Tzeng, PHARMDPharmacist1275284929
- Alan UlibarriCounselor1477678159
- Karen Umemoto, LCSWClinical Social Worker1518950229
- Constance UnderwoodMental Health Counselor1376673186
- Billy UrestiInterpreter1760208961
- Jeannette UrizaClinical Social Worker1528834132
- Michelle Valdez, COTAOccupational Therapy Assistant1508165952
- Sarah Valle, LMTMassage Therapist1043774904
- Deidre Van Assche, CRNPPsychiatric/Mental Health Nurse Practitioner1083709059
- Connor Van Bavel, M.SC.P.T.Physical Therapist1225430606
- Rose Van CampSpeech-Language Pathologist1710844980
- Christina Van Es, RDRegistered Dietitian1285375576
- Sara Van Slyke, M.A.Counselor1588063218
- Heidi Van WoenselOccupational Therapist1568248664
- Krista VanceMental Health Counselor1669840609
- Anne Marie Vang, LPCProfessional Counselor1700523776
- Michael Vang, LPC, LACProfessional Counselor1508543398
- Erica Vargas, M.A.Student in an Organized Health Care Education/Training Program1740666320
- Guadalupe Vargas, LCSWClinical Social Worker1154186427
- Serena VasquezCounselor1235596735
- Viviana Vasquez Torres, RDHDental Hygienist1477307668
- Taylor Vaughan, PT, DPT, CLTPhysical Therapist1528513058
- Alexandra Veillette, MA CCC-SLPSpeech-Language Pathologist1457821589
- Zhanna Veksler-Smith, MAMental Health Counselor1922211176
- Megan VelaNurse's Aide1427553676
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.