Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Family Practice

Ruth E. Montes, MD

Sees patients in San Dimas, CA · California

Summary

Ruth E. Montes, MD (Family Practice) is enrolled with Medicare at 1 practice location in San Dimas, CA. NPI 1265886931. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Ruth E. Montes, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Family PracticePrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
11Years since medical school (graduated 2015)
University Of Southern California Keck School Of MedicineMedical school
FemaleGender (as listed)
Southern California Permanente Medical GroupGroup practice

Quick answers

Where does Ruth E. Montes see patients?
Medicare's clinician data lists 1 practice location in San Dimas, CA. Call before your visit to confirm the address.
What is Ruth E. Montes's specialty?
Medicare lists Family Practice as the primary specialty.
Does Ruth E. Montes accept Medicare assignment?
Yes. Medicare's clinician data says Ruth E. Montes accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
Does Ruth E. Montes offer telehealth?
Medicare's clinician data says Ruth E. Montes offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Ruth E. Montes?
(909) 394-2526, as listed in official Medicare / NPI Registry data.
What is Ruth E. Montes's NPI number?
1265886931. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Ruth E. Montes is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Ruth E. Montes as a member of this group (CMS data updated 2026-10-02).

  • Southern California Permanente Medical Group11,293 clinicians in the group

Specialties

Find other Family Practice doctors in California →

Other family doctors in San Dimas

Clinicians with the same Medicare primary specialty in San Dimas, CA — not a recommendation.

All family doctors in San Dimas →

Clinician information

CredentialMD
Medical schoolUniversity Of Southern California Keck School Of Medicine
Graduation year2015
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1265886931
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians