2026 data CMS NPPES NUCC Taxonomy

Doctors in Colton, CA

Active healthcare providers in Colton sourced from the CMS NPPES weekly file, no proprietary ratings, no editorial scores. NPI counts, specialty distribution, and primary practice addresses refreshed each release.

2,380
Providers
CMS NPPES-registered
20
Specialties
NUCC taxonomy codes
Registered Nurse
Top specialty
359 providers
California
State
CA

Where this city sits in the corpus

Colton ranks 92nd among 805 California cities by CMS provider count, holding 0.3% of the state's NPIs, led by Registered Nurse.

2,380
NPPES providers in city
92nd
of 805 CA cities
0.3%
of California providers
35.1%
in top 3 specialties

Colton ranks #7 of 10 California cities for Registered Nurse.

Where Colton ranks among California cities

Provider count vs every California city in CMS NPPES (805 cities)

2,380 Top 11% higher than 89% of 805 cities

0–200: 398 cities (49%). Below this entry. 200–400: 103 cities (13%). Below this entry. 400–600: 45 cities (6%). Below this entry. 600–800: 48 cities (6%). Below this entry. 800–1,000: 29 cities (4%). Below this entry. 1,000–1,200: 15 cities (2%). Below this entry. 1,200–1,400: 17 cities (2%). Below this entry. 1,400–1,600: 15 cities (2%). Below this entry. 2K+: 135 cities (17%). This entry sits in this band. This city 0 2K+ California cities (providers), bucketed by value

Each bar is a band; taller bars hold more cities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS National Plan & Provider Enumeration System (NPPES) · 2026

Specialty mix in Colton

Share of the city's NPPES registrations by NUCC taxonomy

providers

What this shows Registered Nurse is the largest specialty (359 providers, 15.1% of the city), followed by Student in an Organized Health Care Education/Training Program.

Source CMS NPPES · city_top_specialties As of 2026

City vs state specialty index

Specialties Colton has more, and fewer, of than California average

Each multiple is this city's share of a specialty divided by that specialty's average share across California , Colton over-indexes licensed psychiatric technician at 13.8× the state average and under-indexes behavior technician at 0.25×. This reflects local practice structure, not care quality.

How to read this directory & data limitations

Colton, California appears in the CMS National Plan and Provider Enumeration System with 2,380 registered healthcare providers spanning 20 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 2023 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 (359 clinicians, followed by Student in an Organized Health Care Education/Training Program with 328 and Physician Assistant with 149). 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 6.1 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.

Which specialties are most common in Colton

Healthcare Providers (Page 46)

Name
Rhiannon Waite
Addiction (Substance Use Disorder) Counselor
Thomas Walbolt, D.O.
Surgery Physician
Dashon Walker
Licensed Psychiatric Technician
Rita Walker
Intellectual & Developmental Disabilities Psychologist
Wanda Walker
Licensed Vocational Nurse
Todd Wall, CADC II
Addiction (Substance Use Disorder) Counselor
Andrew Wallace
Addiction (Substance Use Disorder) Counselor
Qiu Hua Wan, D.O.
Internal Medicine Physician
Ashley Wang, MD
Student in an Organized Health Care Education/Training Program
Dennis Wang, P.A.
Physician Assistant
Dongying Wang, DO
Student in an Organized Health Care Education/Training Program
Ming Wang
Physician Assistant
Ethel Wanyana
Registered Nurse
Ivy Warounthorn, MPH, RDN
Registered Dietitian
Diane Washington
Behavior Technician
Elias Wassel
Student in an Organized Health Care Education/Training Program
Rebecca Waterhouse
Behavior Technician
Tara Weaver, MD
Family Medicine Physician
Andrea Webb
Registered Nurse
Kenneth Webb, MS
Marriage & Family Therapist
Richard Webb
Registered Nurse
Ashley Webster
Behavior Technician
Danielle Weck
Student in an Organized Health Care Education/Training Program
Tracey Wee, P.A-C
Physician Assistant
John Weekley
Professional Counselor
Dereck Wei
Psychiatry Physician
Terri Weir
Registered Nurse
Kyama Welch
Licensed Vocational Nurse
Mary Welch, D.O.
Emergency Medicine Physician
Helen Wells
Licensed Psychiatric Technician
Kayla Wells, PSYD, BCBA
Behavior Analyst
Lacey Wells
Mental Health Counselor
Miranda Wert
Mental Health Counselor
Matthew Whealon, MD
Surgery Physician
John Whitcher, DDS
General Practice Dentistry
Martin White, PHARM D
Pharmacist
Peter White, MD
Pain Medicine Physician
Susan White, CATC-CAADE-040950
Addiction (Substance Use Disorder) Counselor
Terrilyn White, LMFT
Marriage & Family Therapist
Allice Whitson, NP
Family Nurse Practitioner
Lauren Wichhart
Licensed Psychiatric Technician
Priyantha Wickramanayake
Physician Assistant
Sarah Wilberforce-Aryee
Licensed Vocational Nurse
Madison Wilhelm, MD
Student in an Organized Health Care Education/Training Program
Kalli Wilkens
Physical Therapist
Mallory Willenborg, PA-C
Physician Assistant
Andrea Williams
Addiction (Substance Use Disorder) Counselor
Heidy Williams, OT
Pediatric Occupational Therapist
Kathy Williams
Addiction (Substance Use Disorder) Counselor
Monty Williams, AOD COUNSELOR
Addiction (Substance Use Disorder) Counselor

Nearby Cities in California

Other California cities with provider coverage in the CMS NPPES registry.

Compare specialties side-by-side →

Frequently Asked Questions

How many doctors are in Colton, CA?
There are 2,380 registered healthcare providers in Colton, CA, covering 20 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, Behavior Technician. Registered Nurse has the most providers with 359.
Related guides

Provider data from CMS NPPES (download.cms.gov/nppes); specialty classification from NUCC Health Care Provider Taxonomy. PlainDoctor does not rate or rank providers. Methodology · About

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from CMS National Plan and Provider Enumeration System (NPPES). Consult a qualified professional before making decisions based on this data.

Compiled from official public sources by the editorial process.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2026-05-20.