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 17 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
- Kimberly Harmon, R.D.Registered Dietitian1972833390
- Whitney Harrington, PA-CPhysician Assistant1558670216
- Camille HarrisSpeech-Language Pathologist1912783176
- Dennis Harris, M.A.Addiction (Substance Use Disorder) Counselor1578993721
- Jana Harris, PHARMD, RPHPharmacist1275082711
- Lindsay Harris, MSCounselor1629492681
- Elizabeth HartSpeech-Language Pathologist1629854898
- Amanda HartkornBehavior Analyst1134813215
- Emily Hartnett, OTR/LOccupational Therapist1801357330
- Nicole HartogSocial Worker1891153326
- Kirsten HartzCounselor1114406964
- Ana Hasfura -Cadotte, D.D.SGeneral Practice Dentistry1669558607
- Abigail Haslem, MA, LPCCMental Health Counselor1720820137
- Abigail Hassen, MA, LPCProfessional Counselor1891167524
- Kelly HaughMental Health Counselor1235840398
- Marie HauserAttendant Care Provider1952034555
- James HausmanClinical Social Worker1053890897
- Jeffrey Hawke, MDOccupational Medicine Physician1407845316
- Brooke HayesNurse Practitioner1942191770
- Jerry Haygood, MDGeneral Practice Physician1093924821
- Alexis Heartsfield, PA-CPhysician Assistant1073294872
- Tara HeftyMental Health Counselor1013180207
- Susan Hegstrom, PHARMDPharmacist1134722515
- Norma Heide, LMTMassage Therapist1629458310
- Stephanie HeimerMental Health Counselor1225698129
- Jacob Heinen, PAPhysician Assistant1023762945
- Stephanie HeitkemperMental Health Counselor1528438785
- Erin Heltshe, MPTPhysical Therapist1467403873
- Steven HenaseyPharmacist1659661700
- Philip Henbest, D.O.Family Medicine Physician1003829565
- Lucas Henderson, M.D.Pediatrics Physician1356301683
- Heather Hendrickson, CPNP-PCPediatric Nurse Practitioner1063236990
- Melissa Henningsen, RNRegistered Nurse1063759488
- Aisha HenryCounselor1205383486
- Angela Hento, CNMAdvanced Practice Midwife1457798837
- Courtney Hepner, CPTAthletic Trainer1821433962
- Robertino Herceglic, RNRegistered Nurse1811149602
- Gabrielle HerlynBehavior Technician1578306700
- Timothy HermannMental Health Counselor1316183106
- Elizabeth HernandezInterpreter1700691250
- Karen HernandezCounselor1245605385
- Marissa Hernandez, MA CCC-SLPSpeech-Language Pathologist1558461640
- Neida HernandezInterpreter1992624738
- Tammy Hernandez, RN, BSNRegistered Nurse1821303645
- Griselda Hernandez Arellano, COTA/LOccupational Therapy Assistant1679247258
- Dayna HernreichPhysical Therapist1376173138
- Riley Herr, DDSGeneral Practice Dentistry1770362931
- Ashley HerrboldtCounselor1942485339
- Isabella HertzRegistered Nurse1023526217
- Kimberly Hesseltine, CADACAddiction (Substance Use Disorder) Counselor1760924781
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.