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 29 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
- Desiree NashMental Health Counselor1659724268
- Suzanne Nash, MDFamily Medicine Physician1336146273
- Aracely Navarro, DOULADoula1568287092
- Justina Nazario, CPMMidwife1902670458
- Nicole NegriMental Health Counselor1699320820
- David Neil, CRNACertified Registered Nurse Anesthetist1952367294
- Allison Nelson, LSWAddiction (Substance Use Disorder) Counselor1851613558
- Amanda Nelson, R.N.Registered Nurse1841734662
- Eric Nelson, DDSDentist1821834748
- Kortnee NelsonStudent in an Organized Health Care Education/Training Program1295683746
- Zachary Nelson, D.M.D.Orthodontics and Dentofacial Orthopedics Dentistry1356640882
- Krystal NemetzNurse's Aide1457819898
- Michelle Nentwig, M.D.Orthopaedic Surgery Physician1073961553
- Maureen Nerim-Atkins, M.S.Mental Health Counselor1154599116
- Luis NevarezBehavior Analyst1881231884
- Tanya New, MS, OTR/LOccupational Therapist1922657782
- Britt Newsome, MDNephrology Physician1306873476
- Eliza Newsome, BACounselor1285164988
- Alexander NguyenPharmacist1013451236
- Alexis Nguyen, DDSDentist1154998052
- An Nguyen, D.D.S., M.P.H.General Practice Dentistry1780877357
- Angie Nguyen, P.T,Physical Therapist1356567960
- Hillary Nguyen, PHARMDPharmacist1497675805
- Kimanh Nguyen, RDHDental Hygienist1013460138
- Michelle NguyenObstetrics & Gynecology Physician1740770973
- Monique NguyenInpatient Obstetric Registered Nurse1639018476
- Nguyet Nguyen, PHARMDPharmacist1588437693
- Nhukha Nguyen, DDSDentist1699563833
- Tam Nguyen, M.D.Anesthesiology Physician1497010573
- Tiffany NguyenMental Health Counselor1003151804
- Trang NguyenPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1316611759
- Caroline NicholsonFamily Nurse Practitioner1619650504
- Robert NicholsonBehavior Technician1639830870
- John Nielson, FNPFamily Nurse Practitioner1205152907
- Jeffrey Nikaido, BAMental Health Counselor1639406903
- Donna NikanjamPediatrics Physician1114230927
- Lindsey NoeCounselor1073067302
- Oscar Noel, D.O.Orthopaedic Surgery Physician1407295470
- Estrellita NoriegaInterpreter1184584450
- Joshua NormandeauOptometrist1134978711
- Frances Richard Normile, M.ED., M.S.P.H., CACAddiction (Substance Use Disorder) Counselor1497180566
- Ryley Norton, DPTPhysical Therapist1881177210
- Adrian NorwoodSurgical Assistant1477430874
- Beverly Noyes, PH.D.Professional Counselor1386966497
- Jorjean Nuebel, M.S., CCC-SLPSpeech-Language Pathologist1679167746
- Rosa NunezInterpreter1013724467
- Abigail Nye, D.D.S.General Practice Dentistry1134675150
- Kevin O'Brien, M.D.Allergy & Immunology (Internal Medicine) Physician1134131733
- Robert O'Brien, MS, ATRMental Health Counselor1891001210
- Carla O'Connor-Bardwell, RNRegistered Nurse1326569831
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.