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 NPPES data is self-reported and refreshed monthly, so listing details may be out of date; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients.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 17)

Name
ANGEL GUILLEN
Counselor
JULIANNE GUINASSO
Marriage & Family Therapist
POOJA GUPTA, DO
Family Medicine Physician
SALONI GUPTA
Nephrology Physician
ANDREW GUREWITZ, DO
Student in an Organized Health Care Education/Training Program
ASHLEY GUSHULAK, CRNA
Anesthesiology Physician
MELLISSA GUTIERREZ
Addiction (Substance Use Disorder) Counselor
SARA GUTIERREZ
Behavior Technician
SCOTT GVESRUDE
Psychiatric/Mental Health Registered Nurse
TERESA GWINN
Registered Nurse
FARIS HADDAD, DO
Student in an Organized Health Care Education/Training Program
TATIANA HAGE
Student in an Organized Health Care Education/Training Program
SANAZ HAJIZADEH BARFJANI, M.D.
Student in an Organized Health Care Education/Training Program
RONAL HALBROOK
Registered Nurse
JAMES HALEY
Licensed Vocational Nurse
MICHAEL HALEY
Licensed Vocational Nurse
COURTNEY HALL, RN, BSN
Registered Nurse
JENESSA HALLIDAY, PA-C
Physician Assistant
BRITTANY HAMILTON
Registered Nurse
JENNIFER HAMMAN, SLP
Speech-Language Pathologist
JILLIAN HAMMES, D.O.
Family Medicine Physician
ALEXANDER HAMMONDS, PA
Physician Assistant
EUNHAE HAN, DO
Student in an Organized Health Care Education/Training Program
BEVERLY HANES, M.A. MFT
Marriage & Family Therapist
LAURIE HANNA, CRNA
Certified Registered Nurse Anesthetist
JESSICA HANSSON
Registered Nurse
KATHRYN HARAN, DO
Emergency Medicine Physician
LEAH HARAWAY
Behavior Technician
EMILY HARDEN
Behavior Technician
OMID HARIRI, D.O., MSC.
Surgery Physician
FRANCESCA HARPER
Mental Health Counselor
ROBERT HARPER, CATC I
Addiction (Substance Use Disorder) Counselor
KRISTEN HARRINGTON, PA-C
Physician Assistant
EDITH HARRIS
Psychiatric/Mental Health Registered Nurse
EVELYN HARRIS, LVN
Licensed Vocational Nurse
KATE HARRIS, DO
Student in an Organized Health Care Education/Training Program
SCHELENA HARRIS
Addiction (Substance Use Disorder) Counselor
MICHAEL HARUTUNIANS, DO
Anesthesiology Physician
MUFADDA HASAN, M.D.
Internal Medicine Physician
NAZLI HASAN
Behavior Technician
ROMINA HASHEMIZADEH
Student in an Organized Health Care Education/Training Program
SUNITA HASSAMAL, M.D.
Internal Medicine Physician
LADAN HASSANZADEH-KHAYYAT
Student in an Organized Health Care Education/Training Program
KASIM HASSEN, MD
Student in an Organized Health Care Education/Training Program
EMMA HATANAKA
Student in an Organized Health Care Education/Training Program
DOUGLAS HAUSMAN
Rehabilitation Practitioner
RICHARD HAUSMAN, D.O.
Emergency Medicine Physician
DOUGLAS HAY, MD
Internal Medicine Physician
MATTHEW HAYDEN
Licensed Psychiatric Technician
CALVIN HE, DO
Internal Medicine Physician

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.