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 38 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
- Zehra RizviStudent in an Organized Health Care Education/Training Program1053239061
- Gabriele Roberts, LMFTMental Health Counselor1649364274
- Jaela RobertsRegistered Nurse1700437431
- Jeffrey Roberts, MDOtolaryngology Physician1225145915
- Sade Roberts, RNRegistered Nurse1780337592
- Denzil Robinson, MDStudent in an Organized Health Care Education/Training Program1831985837
- Joyce RobinsonCounselor1629211438
- Maria Robinson, LVNLicensed Vocational Nurse1083839054
- Mark Robinson, MDInternal Medicine Physician1346286507
- Velma RobinsonRegistered Nurse1497305817
- Adrian RoblesRegistered Nurse1134750854
- Anabel RoblesMarriage & Family Therapist1275051609
- German RoblesMental Health Counselor1306296942
- Jessica Robles, LVNAddiction (Substance Use Disorder) Counselor1336364249
- Jonathan RoblesRegistered Nurse1578006730
- Leslie Robles, MDStudent in an Organized Health Care Education/Training Program1437991510
- Nayely RoblesCase Manager/Care Coordinator1952024697
- Maria Robles LopezBehavior Technician1891531919
- Kristin RochfordPharmacist1952162182
- Alyssa RodriguezBehavior Technician1336012715
- Aracely Rodriguez, DOULADoula1447854807
- Carmen RodriguezMental Health Counselor1598144859
- Cornelia Lynn RodriguezRegistered Nurse1811536030
- Justin Rodriguez, MDVascular Surgery Physician1154124824
- Maria Rodriguez, M.DFamily Medicine Physician1780947499
- Maricela RodriguezCase Manager/Care Coordinator1336322452
- Mary RodriguezAddiction (Substance Use Disorder) Counselor1003534462
- Xiomara RodriguezMarriage & Family Therapist1992836969
- Daniel Roe, RNPsychiatric/Mental Health Registered Nurse1831868504
- Ancel Rogers, M.D.Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician1578673489
- Timothy Rogers, RNRegistered Nurse1538799242
- Jon RoggenkampRegistered Nurse1730518374
- Bianca RojasBehavior Technician1124913827
- Enrique RojasPharmacy Technician1083017420
- Tatiana RojasRegistered Nurse1972990240
- Suman Rollakanti, MDStudent in an Organized Health Care Education/Training Program1083542344
- Kristina Roloff, D.O.Obstetrics & Gynecology Physician1649418401
- Ruby RomanSocial Worker1396508321
- Angelina RomeroBehavior Technician1609680933
- Candice RomeroRegistered Nurse1538056056
- Evelyn Romero, B.A.Counselor1407186489
- Janet RomeroMarriage & Family Therapist1881011575
- Miriam RomeroMental Health Counselor1518001270
- Christopher Romito, MDEmergency Medicine Physician1073218103
- Gina Romo, MS, CCC-SLPSpeech-Language Pathologist1679106611
- Maria RomoLicensed Vocational Nurse1063842037
- Marianne Ronay, N.P.Family Nurse Practitioner1508089897
- Diana RorieRegistered Nurse1407209018
- Adriana RosalesSocial Worker1245802925
- Monica RosasCounselor1437309630
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.