Doctors and health care providers in Colton, CA
2,459 individual NPPES records list a practice address in Colton, 93rd of 812 California cities. The largest group is registered nurse: 345, 14% of the city's records, against 1% across California. Page 45 of 50.
The 8 largest groups in Colton
Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.
Colton in California
- Rank in California93rd of 812 cities by records
- Share of the state0.3% of California's records
- Specialties present25 or more taxonomy codes
- Top three groups32.7% of all records
- Registered Nurse rank7th of the 10 California cities with the most
Compared with California as a whole, Colton has 13.3× the state's share of licensed psychiatric technician records and 0.23× its share of behavior technician records.
Providers in Colton, alphabetically
- Nam Thi, PHARM.DPharmacist1841941945
- Marian ThomasPhysician Assistant1992380828
- Miracle ThomasBehavior Technician1851027023
- Rishi Thomas, DOPsychiatry Physician1982224804
- Desiree Thomas-Layugan, LMFTMarriage & Family Therapist1861741308
- Devin Thompkins, APCCMental Health Counselor1811816523
- Donald ThompsonBehavior Technician1588552004
- Mario ThompsonLicensed Psychiatric Technician1609212786
- Alice Thomson, M.A., PH. D.Mental Health Counselor1700060860
- Nicolas Thor, MDInternal Medicine Physician1861078545
- Hlahla ThwePediatric Nurse Practitioner1841891710
- Qi Tian, DOStudent in an Organized Health Care Education/Training Program1972346542
- Ashley TiedemannCase Manager/Care Coordinator1821402116
- Panadda Tiempetpaisal, DDSDentist1083820096
- Vivian TieuStudent in an Organized Health Care Education/Training Program1063270353
- Raymond Tinio, NPAcute Care Nurse Practitioner1033751938
- Sayuri Tokutake, D.O.Family Medicine Physician1861620197
- Jame TolentinoRegistered Nurse1295165264
- Kristina TombulyanStudent in an Organized Health Care Education/Training Program1063115525
- Mika Tomita, MFTIMarriage & Family Therapist1255520359
- Risnauli TondangRegistered Nurse1194100784
- Jasmine Toor, MDPulmonary Disease Physician1114554052
- Norma Toro-Hernandez, LCSWClinical Social Worker1669091443
- Aaliyah TorresBehavior Technician1841089745
- Anthony TorresRegistered Nurse1538912399
- Kyle Torres, R.N.Registered Nurse1841463973
- Tomas TorresMarriage & Family Therapist1194916668
- Gregory Toumayan, DCChiropractor1154482933
- Anh Tran, DOPsychiatry Physician1083118871
- Anna TranPharmacist1881033934
- Athena Tran, RNRegistered Nurse1346871589
- Catherine Tran, MDStudent in an Organized Health Care Education/Training Program1093370777
- Christine TranRegistered Nurse1023994787
- Cuong Tran, MDEmergency Medicine Physician1750900635
- Duc Tran, PAPhysician Assistant1609141415
- Loc Tran, PHARMDPharmacist1679399984
- Melanie Tran, PHARM DPharmacist1164832812
- Phong Tran, MDStudent in an Organized Health Care Education/Training Program1710568720
- Phuoc Tran, MDPsychiatry Physician1104969153
- Quy Tran, MDPsychiatry Physician1477680866
- Wynne Tran, MDStudent in an Organized Health Care Education/Training Program1164362133
- Susan TrawickLicensed Vocational Nurse1598161606
- Brandon Treadwell, BACHELOR'S DEGREEDay Training/Habilitation Specialist1023409406
- Don TrinhRegistered Nurse1750741294
- Rebekah Trules, PHARMD, MPHPharmacist1720754534
- Bich Thuy Truong, PHARMDPharmacist1477711331
- Michael Truong, PA-CPhysician Assistant1689900995
- Mary TsaturianObstetrics & Gynecology Physician1538743695
- Michelle TubbsRegistered Nurse1689932451
- Mimosa TumangRegistered Nurse1013189307
The largest California cities
- Los Angeles69,537
- San Diego52,937
- San Francisco38,143
- Sacramento33,083
- San Jose20,925
How to read this directory
Colton, California appears in the CMS National Plan and Provider Enumeration System with 2,459 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 Colton - 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 Colton 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 Colton is weighted toward Registered Nurse (345 clinicians, followed by Student in an Organized Health Care Education/Training Program with 297 and Physician Assistant with 162). 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 California's population, Colton reports roughly 6.3 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 California's most common specialties, Physical Therapist is the most prominent one with no provider currently listing a Colton practice address, a coverage gap Colton patients typically fill by traveling to a larger nearby hub.
For Colton 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 Colton, CA?
There are 2,459 registered healthcare providers in Colton, CA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Colton?
The most common specialties in Colton are Registered Nurse, Student in an Organized Health Care Education/Training Program, Physician Assistant, Addiction (Substance Use Disorder) Counselor, Emergency Medicine Physician. Registered Nurse has the most providers with 345.
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.