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 10 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
- Alvin Davis, PSYDClinical Psychologist1689907552
- April DavisSpeech-Language Pathologist1720946254
- Lawrence Davis, CSFASurgical Assistant1275850802
- Maranda Davis, LPCProfessional Counselor1952550923
- Margaret Davis, MACounselor1770894834
- Marnita DavisAddiction (Substance Use Disorder) Counselor1053725556
- Matthew Davis, D.D.S.Endodontics1013001171
- Safiya DawlatzaiPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1063125334
- Ellen Dawson, LAC, LSW, AASWAddiction (Substance Use Disorder) Counselor1295498590
- Heather Dawson, B.S.Mental Health Counselor1295093029
- Toya Dawson, MSW,Mental Health Counselor1184894784
- Douglas Deam, D.M.D.Dentist1023218443
- Billie Dean, MA, LACAddiction (Substance Use Disorder) Counselor1932431160
- Linda DeanPhysical Therapy Assistant1720323785
- Jordyn Debower, LPCProfessional Counselor1720853500
- Melanie Debusk, M.S., CCC-SLPSpeech-Language Pathologist1205161098
- Melissa Dechant, BSRNPsychiatric/Mental Health Registered Nurse1598131732
- Erin Deedy-Lee, D.M.D.General Practice Dentistry1881908630
- Matthew Dehaven, PT, DPTPhysical Therapist1124697412
- Madison DelayCounselor1023520954
- Elizabeth Demarsh-SmithRegistered Nurse1730697913
- Victoria DemeryCounselor1356737878
- Daniel Demonica, PHARMDPharmacist1073896189
- Paul Deneault, M.D.Gastroenterology Physician1346276177
- Kellon Densmore, R.N.Adult Psychiatric/Mental Health Registered Nurse1285099028
- Courtney DentonMental Health Counselor1982258729
- Erica Derby, DDSGeneral Practice Dentistry1407928724
- Mary Derenzo, M.A., LPC, NCCProfessional Counselor1972804029
- Cathleen Derolf, M.S.Mental Health Counselor1952420606
- Linda DesantiagoInterpreter1104642677
- Kathie Deschaine, MS, LPC, LACMental Health Counselor1891824967
- Jenna Desormier, P.T., D.P.T., ATCPhysical Therapist1912930520
- Jennifer Dessel, AU.D.Audiologist-Hearing Aid Fitter1548445943
- Geoffroy Destenaves, DMDDentist1043759384
- Todd Dextradeur, MDInternal Medicine Physician1801845532
- Amrita Dhaliwal, ODOptometrist1902908791
- Bintou DialloCounselor1326405820
- Alexia DiazCounselor1982199261
- Rosalinda Diaz, NPFamily Nurse Practitioner1487544474
- Katherine DicamilloCounselor1710268933
- Treydon Dickson, RBTBehavior Technician1417774480
- Angela Dicus, RDHDental Hygienist1427883412
- Jessica DiebelMental Health Counselor1841403011
- Alyson DinkinMental Health Counselor1841601002
- Sharon Disney, OTR/LPediatric Occupational Therapist1023704095
- Thomas DitmonCounselor1780186064
- Erin DittelbergerMental Health Counselor1750558177
- Trent DittmerMassage Therapist1760188353
- Kristen Dixon, O.T.ROccupational Therapist1336355247
- Colleen Dodson, R.D.H.Dental Hygienist1497135735
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.