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

2,380 healthcare providers across 20 specialties

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.

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.

For Colton patients, this directory is most useful as a starting shortlist — searching by specialty narrows the 690-taxonomy roster to clinicians with the relevant training, and each provider page links to NPI, state licensing boards, and the NPPES registry for credential verification. 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 NPPES data is self-reported and refreshed monthly, so listing details may be out of date; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients. Nothing on this page substitutes for consulting a licensed clinician about your personal health decisions.

2,380
Providers
20
Specialties
6.1
Per 100K (state)

Which specialties are most common in Colton

Registered Nurse 359
Student in an Organized Health Care Education/Training Program 328
Physician Assistant 149
Addiction (Substance Use Disorder) Counselor 115
Behavior Technician 102
Licensed Vocational Nurse 86
Mental Health Counselor 83
Licensed Psychiatric Technician 79
Emergency Medicine Physician 77
Family Medicine Physician 69
Marriage & Family Therapist 64
Pharmacist 59
Internal Medicine Physician 55
Clinical Social Worker 45
Certified Registered Nurse Anesthetist 38
Counselor 36
Psychiatric/Mental Health Registered Nurse 35
Psychiatry Physician 33
Case Manager/Care Coordinator 33
Family Nurse Practitioner 29

Healthcare Providers (Page 31)

Name
ANTHONY NGUYEN, MD
Student in an Organized Health Care Education/Training Program
ANTHONY NGUYEN, MD
Student in an Organized Health Care Education/Training Program
CHRISTINE NGUYEN, DDS
Dentist
DOAN NGUYEN, MD
Psychiatry Physician
EDWARD NGUYEN
Emergency Medicine Physician
FELIX NGUYEN, PA-C
Student in an Organized Health Care Education/Training Program
HAI NGUYEN
Pharmacist
KIMLOAN NGUYEN
Registered Nurse
LIEN NGUYEN, O.D.
Optometrist
LOC NGUYEN
Registered Nurse
MARIAM NGUYEN, MD
Student in an Organized Health Care Education/Training Program
NGUYEN NGUYEN
Family Medicine Physician
NICHOLAS NGUYEN
Student in an Organized Health Care Education/Training Program
ROBERT NGUYEN, MD
Internal Medicine Physician
TAM NGUYEN
Pharmacist
LOREEN NGWAZINI
Adult Psychiatric/Mental Health Registered Nurse
MADISON NICHOLS
Behavior Technician
BRIAN NIELSEN, DO
Internal Medicine Physician
KATHRYN NIELSON
Registered Nurse
EDWARD NIEMAN
Chiropractor
ANDREW NIK, MD
Student in an Organized Health Care Education/Training Program
NICHOLE NIKNAFS, D.O.
Student in an Organized Health Care Education/Training Program
MARGARET NINNEMAN, CCC-SLP
Speech-Language Pathologist
CLARA NNADI, NURSE PRACTITIONER
Family Nurse Practitioner
TAMMY NODLER, CRNA
Certified Registered Nurse Anesthetist
THET MYAT NOE, MD
Student in an Organized Health Care Education/Training Program
MALLORY NOVACK, D.O.
Obstetrics & Gynecology Physician
ALBERTO NUNEZ, MD
Student in an Organized Health Care Education/Training Program
STEVEN NUNEZ
Licensed Vocational Nurse
NNENNA NWAGBO
Registered Nurse
HENRIETTA NWAMU
Registered Nurse
DARLINGTON NWITE, RN
Registered Nurse
JANE NWOKEABIA
Psychiatric/Mental Health Nurse Practitioner
HENRY NWOSU, NP
Family Nurse Practitioner
MARTINE NYIRAMAHIRWE
Registered Nurse
TIMOTHY O'KELLEY, D.O.
Emergency Medicine Physician
JENNIFER O'NEILL, RDN
Registered Dietitian
ANGELINA OBA
Registered Nurse
BROOKLYN OBER, PA-C
Physician Assistant
CHRISTINA OBIKE
Registered Nurse
SERGIO OCAMPO
Registered Nurse
RICHARD OCHART, D.C.
Chiropractor
EDWIN OCHOA
Behavior Technician
DORCAS OCRAN
Registered Nurse
BUZAND OGANESIAN
Internal Medicine Physician
SIMON OGOM
Physical Therapy Assistant
GRACE OGUNKUNLE
Registered Nurse
DOTUN OGUNYEMI, MD
Obstetrics & Gynecology Physician
ABIGAEL OGWO
Licensed Psychiatric Technician
MARK OH
Registered Nurse

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.

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.