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 37 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
- Kambiz Raoufi, MDInternal Medicine Physician1396784740
- Anna Leah RarangolRegistered Nurse1891222055
- Scott RasmussenRegistered Nurse1649778523
- Hugo Rauld, MDGynecology Physician1962587998
- Brianna Ray, D.O., M.P.H.Infectious Disease Physician1477915932
- Cristino Raya, RNRegistered Nurse1639938574
- Mohammad RazipourStudent in an Organized Health Care Education/Training Program1558120741
- Aladino Razo, MDPsychiatry Physician1366186793
- Bruce Reddix, M.D.Neonatal-Perinatal Medicine Physician1174632780
- Vijay Reddy, MDStudent in an Organized Health Care Education/Training Program1811799828
- Ashjanae ReedRehabilitation Practitioner1558904243
- Christopher ReedPhysician Assistant1164096673
- Graeme Reed, M.D.Family Medicine Physician1609105162
- Alexandra Rees, PA-CPhysician Assistant1700316221
- Jazmin RegaladoCase Manager/Care Coordinator1174035158
- Michael Reid, CRNACertified Registered Nurse Anesthetist1104832039
- Michaela ReidOccupational Therapist1164208153
- Louis Reier, D.O.Neurological Surgery Physician1154838175
- Dale Reile, CRNACertified Registered Nurse Anesthetist1205811106
- Richard Reis, CRNACertified Registered Nurse Anesthetist1023093929
- Jamie ReischEmergency Medicine Physician1750743282
- Ana Caroline Remigio, FNPFamily Nurse Practitioner1346791761
- Kaeson RempelStudent in an Organized Health Care Education/Training Program1265224620
- Cesar RenteriaBehavior Technician1013601970
- Christine Rentz, P.A.Physician Assistant1205882701
- Aldo Resendiz, LVNLicensed Vocational Nurse1619688207
- Milton Retamozo, MDSurgery Physician1174630016
- Angelica Reyes, PHARMACY TECHPharmacy Technician1801015557
- Jacqueline Reyes, RS5847Addiction (Substance Use Disorder) Counselor1942490974
- Jeannie ReyesRegistered Nurse1851883912
- Edwin RezaCounselor1053749366
- Emily Rhodes, RD, MPHRegistered Dietitian1972198513
- Faith Rhone, RASAddiction (Substance Use Disorder) Counselor1295911600
- Robert RhoneRegistered Nurse1457748246
- Aurore Richard, D.OEmergency Medicine Physician1154661544
- Elizabeth Richards, MDFamily Medicine Physician1932116795
- Paula RichardsonAddiction (Substance Use Disorder) Counselor1720331622
- Traci RichardsonMassage Therapist1063019503
- Rizalino RicoPsychiatric/Mental Health Registered Nurse1568633451
- Steven Rico, CHWCommunity Health Worker1487412136
- Vena RidderbuschBehavior Technician1699596189
- Margaret Riehm, RN, BSNRegistered Nurse1659910875
- Arthur RiosLicensed Vocational Nurse1649797564
- Jenny Rios, P.A-CPhysician Assistant1346283942
- Theresa RiosSocial Worker1710158431
- Valena Rios, CAADE 6598RCounselor1962929760
- Brianna-Marie Riu, MDStudent in an Organized Health Care Education/Training Program1124870282
- Jose Rivera, DDSGeneral Practice Dentistry1013058346
- Hiram Rivera-Toro, LMFTMarriage & Family Therapist1164681243
- Liliana Rivero, MSMarriage & Family Therapist1386301745
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.