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

Internal Medicine

Claudia Ruiz, MD

Sees patients in Stockton, CA · California

Summary

Claudia Ruiz, MD (Internal Medicine) is enrolled with Medicare at 1 practice location in Stockton, CA. NPI 1548503121. 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 Claudia Ruiz, 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

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
13Years since medical school (graduated 2013)
FemaleGender (as listed)
Permanente Medical Group IncGroup practice

Quick answers

Where does Claudia Ruiz see patients?
Medicare's clinician data lists 1 practice location in Stockton, CA. Call before your visit to confirm the address.
What is Claudia Ruiz's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Claudia Ruiz accept Medicare assignment?
Yes. Medicare's clinician data says Claudia Ruiz 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 Claudia Ruiz offer telehealth?
Medicare's clinician data says Claudia Ruiz offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Claudia Ruiz?
(209) 476-2000, as listed in official Medicare / NPI Registry data.
What is Claudia Ruiz's NPI number?
1548503121. 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 Claudia Ruiz is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Claudia Ruiz as a member of this group (CMS data updated 2026-10-02).

  • Permanente Medical Group Inc10,996 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Stockton

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

All internal medicine doctors in Stockton →

Clinician information

CredentialMD
Graduation year2013
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1548503121
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