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Internal Medicine

I-Chun S. Ou, MD

Sees patients in Redwood City, CA · California

Summary

I-Chun S. Ou, MD (Internal Medicine) is enrolled with Medicare at 3 practice locations in Redwood City, CA. NPI 1093867897. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

Call(650) 299‑2000 NPI Registry record Medicare profile

From official Medicare data

This page shows what Medicare's official clinician data says about I-Chun S. Ou, 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

3Practice locations
Internal MedicinePrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
32Years since medical school (graduated 1994)
Tufts University School Of MedicineMedical school
FemaleGender (as listed)
Permanente Medical Group IncGroup practice

Quick answers

Where does I-Chun S. Ou see patients?
Medicare's clinician data lists 3 practice locations, including Redwood City, CA. Call before your visit to confirm the address.
What is I-Chun S. Ou's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does I-Chun S. Ou accept Medicare assignment?
Yes. Medicare's clinician data says I-Chun S. Ou 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 I-Chun S. Ou offer telehealth?
Medicare's clinician data says I-Chun S. Ou offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for I-Chun S. Ou?
(650) 299-2000, as listed in official Medicare / NPI Registry data.
What is I-Chun S. Ou's NPI number?
1093867897. 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 I-Chun S. Ou is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists I-Chun S. Ou 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 Redwood City

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

All internal medicine doctors in Redwood City →

Clinician information

CredentialMD
Medical schoolTufts University School Of Medicine
Graduation year1994
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1093867897
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