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General Surgery

Harry W. Ou, MD

Works at hospitals in Chino, CA · Pomona, CA · Upland, CA · California

Summary

Harry W. Ou, MD (General Surgery) is listed by Medicare at 3 hospitals in Chino, CA, Pomona, CA and Upland, CA. NPI 1750569356. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Harry W. 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

General SurgeryPrimary specialty
YesAccepts Medicare assignment
21Years since medical school (graduated 2005)
Albert Einstein College Of Medicine Of Yeshiva UniversityMedical school
MaleGender (as listed)

Quick answers

Which hospitals does Harry W. Ou work at?
Medicare's official clinician data lists Harry W. Ou at 3 hospitals: Chino Valley Medical Center, Pomona Valley Hospital Medical Center and San Antonio Regional Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Harry W. Ou see patients?
Medicare's clinician data lists 3 practice locations, including Pomona, CA and Chino, CA. Call before your visit to confirm the address.
What is Harry W. Ou's specialty?
Medicare lists General Surgery as the primary specialty.
Does Harry W. Ou accept Medicare assignment?
Yes. Medicare's clinician data says Harry W. 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.
What is the phone number for Harry W. Ou?
(909) 464-9119, as listed in official Medicare / NPI Registry data.
What is Harry W. Ou's NPI number?
1750569356. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Harry W. Ou works

Medicare's Facility Affiliation Data lists Harry W. Ou at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Harry W. Ou is enrolled with Medicare (CMS data updated 2026-10-02).

Specialties

Find other General Surgery doctors in California →

Other general surgeons in Pomona

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

All general surgeons in Pomona →

Clinician information

CredentialMD
Medical schoolAlbert Einstein College Of Medicine Of Yeshiva University
Graduation year2005
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1750569356
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. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians