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 13 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
- Joan Fitzgerald, M.S. L.P.C.Professional Counselor1215089610
- Lauren Fitzpatrick, PHARMDPharmacist1881988160
- Michelle Fitzpatrick, PT, DPTPhysical Therapist1760938443
- Tonia FitzsimmonsCounselor1568860237
- Erin Flamm, DPTPhysical Therapist1619762473
- Lindsay Flanagan, MSW, LCSWClinical Social Worker1518751601
- Morgan Flanagan, MA CCC-SLPSpeech-Language Pathologist1053186528
- Teal Flanigan, LCSWClinical Social Worker1154753358
- Christine FlemingEmergency Medicine Physician1174507115
- Michael FliggPhysical Therapy Assistant1447813951
- Melissa Fling, AU.D.Audiologist1952784720
- Brennen FloodCounselor1699260976
- Lisa Flora, MDEmergency Medicine Physician1821059718
- Jill Flores, FNP-CFamily Nurse Practitioner1861824781
- Esmeralda Flores-Garcia, PAPhysician Assistant1639024433
- Erland Floriano-Monarrez, RDHDental Hygienist1962925354
- Andrew Floyd, MA,SLPSpeech-Language Pathologist1386869188
- Jennifer Floyd, M.A. CCC-SLPSpeech-Language Pathologist1851530927
- Rosemary FlynnBehavior Technician1548906548
- Ann Foley-Gaudette, MAMental Health Counselor1346622537
- Sara FontanaMental Health Counselor1710540588
- Denise Forrest, CPNPPediatric Nurse Practitioner1467503367
- Jennifer Fortunato, PHARM. D. , RPH.Pharmacist1760704936
- Bryan Fousel, PHARMDPharmacist1376826156
- Kelly Fowler, NPFamily Nurse Practitioner1902895683
- Gina FoxDental Hygienist1558565291
- Kelly Fox, PTAPhysical Therapy Assistant1467235176
- Molly FraleighSchool Psychologist1982158671
- Kara FrancisNurse Practitioner1700743820
- Maria Francisco-Matias, RDHDental Hygienist1366615817
- Erica FrankRegistered Nurse1467884825
- Katelyn FrankCounselor1659892990
- Ketney Franklin, LPCCMental Health Counselor1427824291
- Genevieve Franz, MSW, CACIClinical Social Worker1700111523
- Roberto Franz, MS, CCC-SLPSpeech-Language Pathologist1780929828
- Kim FredericksenEmergency Medicine Physician1528103843
- Erica Fredregill, PNP-PCPediatric Nurse Practitioner1902363336
- Sarah Fredrickson, P.A.Medical Physician Assistant1639543028
- Alice FreskeBehavior Technician1134094600
- Robin FriedMental Health Counselor1558605055
- Rebecca Friedel, M.A.Mental Health Counselor1154604858
- David FriedensonEmergency Medicine Physician1427032465
- Janet Frikken, LPCProfessional Counselor1437576956
- Amy Frisbie, MA, CCC-SLPSpeech-Language Pathologist1699090795
- Bethany Fritz, OTR/LOccupational Therapist1659157758
- Rock Fritz, MA, LPCProfessional Counselor1376789594
- Valana Frohardt, PA-CPhysician Assistant1417204702
- Therese FrySpeech-Language Pathologist1982480158
- Whitney Fujii-Doe, M.A.Student in an Organized Health Care Education/Training Program1497198675
- Sean FujimotoMental Health Counselor1497910368
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.