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 12 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
- Denise DuganMarriage & Family Therapist1225582711
- Sarah DuganPeer Specialist1770352890
- David Duggan, D.D.S., PH.D.General Practice Dentistry1336303296
- Michael Dulay, PA-CPhysician Assistant1245872282
- Peter DumasPhysician Assistant1275966095
- Trevor DunbarInternal Medicine Physician1659900785
- Felicia DunnLicensed Psychiatric Technician1114329950
- Calvin Duong, M.D.Internal Medicine Physician1184646119
- Chi Duong, PHARMACY INTERNStudent in an Organized Health Care Education/Training Program1174368609
- Ashley Duque, PA-CPhysician Assistant1073928909
- Karina Duque SierraSocial Worker1578046652
- Andres DuranStudent in an Organized Health Care Education/Training Program1033053012
- Mhelina Duran, LPTLicensed Psychiatric Technician1972982692
- Sandra DuranPsychiatric/Mental Health Registered Nurse1588835474
- Susan Duran-WilliamsLicensed Psychiatric Technician1659543270
- Sally DuronRegistered Nurse1679744494
- Solomon Duruji, RNPsychiatric/Mental Health Nurse Practitioner1164160743
- Susan DuynsteeRegistered Nurse1316474570
- Zinata Dwumfour, NPPsychiatric/Mental Health Nurse Practitioner1497464507
- Grace DzimiriRegistered Nurse1740619493
- Kristina Easterbrook, MS, CCC-SLPSpeech-Language Pathologist1154419323
- Howard EastinMental Health Counselor1477872729
- Emily Ebert, M.D., M.P.H.Family Medicine Physician1730194127
- Ronell EchonRegistered Nurse1861839326
- Zachary EckertClinical Social Worker1346778446
- Nathaniel Eddy, MDStudent in an Organized Health Care Education/Training Program1700727369
- Brian Edison, P.A.Physician Assistant1245600568
- Rhea EdpaoEmergency Registered Nurse1881514982
- Trace EdwardsBehavior Technician1588417794
- Yoggie Efendy, NPPsychiatric/Mental Health Nurse Practitioner1366831653
- Henry Egbuziem, LMFTMarriage & Family Therapist1134823412
- Mesrop Egiazaryan, DO, MPHStudent in an Organized Health Care Education/Training Program1104760008
- Vitalis EgwimNurse Practitioner1265068878
- Christiana Ehieze OkekeLicensed Vocational Nurse1861922262
- Ifunanya Ejillibe, RNFamily Nurse Practitioner1063089902
- Evelyn Ejinaka, RNRegistered Nurse1023713161
- Mohamed El SayedDentist1679761019
- Timothy ElebeckBehavior Technician1538037551
- James Elia, D.O.Emergency Medical Services (Emergency Medicine) Physician1316168479
- Joshua Ellis-KennedyCase Manager/Care Coordinator1164875324
- Amy Elsissy, PAPhysician Assistant1265823322
- Prisca EmecheteRegistered Nurse1720327612
- Ihuoma EmeruwaLicensed Vocational Nurse1932370657
- Jeanell Emond, CCAPP CADC-CAS C1514Addiction (Substance Use Disorder) Counselor1285965343
- Marilou Encarnacion, PNPPediatrics Physician1184796583
- Obiora EnehLicensed Vocational Nurse1295182665
- Anthony Enenmoh, MDInternal Medicine Physician1811931603
- Patrice EngelRegistered Nurse1861638819
- James Ericson, MDInternal Medicine Physician1881731032
- Alexander Erwin, MDStudent in an Organized Health Care Education/Training Program1326986910
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.