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 48)

Name
John Yoo, PA-C
Medical Physician Assistant
Georgina Yoshioka Mora, LCSW
Clinical Social Worker
Kim Young, RPH
Pharmacist
Stacy Young
Pharmacist
Stephanie Young
Student in an Organized Health Care Education/Training Program
Jay Yu, MD
Diagnostic Radiology Physician
Ho-Wang Yuen, MD
Emergency Medicine Physician
Jason Yutuc
Registered Nurse
Anthony Raymond Yvanovich, PA-C
Medical Physician Assistant
Farshad Zaghi, DMD, MSD
Orthodontics and Dentofacial Orthopedics Dentistry
Mario Zambrano
Registered Nurse
Belem Zamora
Mental Health Counselor
Genesis Zamora, MD
Pediatrics Physician
Ronny Zamora
Registered Nurse
Talia Zamora
Behavior Technician
Valerie Zamorano
Licensed Vocational Nurse
Jose Zamudio Escamilla, SA-C
Surgical Assistant
Janay Zapata
Behavior Technician
Alexandra Zaragoza
Clinical Social Worker
Janet Zaragoza
Family Nurse Practitioner
Jorge Zatarain
Attendant Care Provider
Monica Zavala-Arias, MSW
Mental Health Counselor
Nora Zeller, M.A.
Specialist
Alyssa Zepeda
Licensed Psychiatric Technician
Barbara Zermeno Velazquez
Licensed Psychiatric Technician
Olivia Zetty, PA-C
Physician Assistant
Yong Zhang
Psychiatry Physician
Lily Zhu, DO
Student in an Organized Health Care Education/Training Program
Delilah Zummo
Registered Nurse
Carmelita Zuniga
Case Manager/Care Coordinator

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.