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

Internal Medicine

Daniel L. Ouyang, MD

Sees patients in Santa Clara, CA · California

Summary

Daniel L. Ouyang, MD (Internal Medicine) is enrolled with Medicare at 1 practice location in Santa Clara, CA. NPI 1669671681. 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 Daniel L. Ouyang, 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
22Years since medical school (graduated 2004)
University Of Pittsburgh School Of MedicineMedical school
MaleGender (as listed)
Sutter Bay Medical FoundationGroup practice

Quick answers

Where does Daniel L. Ouyang see patients?
Medicare's clinician data lists 1 practice location in Santa Clara, CA. Call before your visit to confirm the address.
What is Daniel L. Ouyang's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Daniel L. Ouyang accept Medicare assignment?
Yes. Medicare's clinician data says Daniel L. Ouyang 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 Daniel L. Ouyang offer telehealth?
Medicare's clinician data says Daniel L. Ouyang offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Daniel L. Ouyang?
(408) 241-3801, as listed in official Medicare / NPI Registry data.
What is Daniel L. Ouyang's NPI number?
1669671681. 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 Daniel L. Ouyang is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Daniel L. Ouyang as a member of this group (CMS data updated 2026-10-02).

  • Sutter Bay Medical Foundation3,829 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Santa Clara

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

All internal medicine doctors in Santa Clara →

Clinician information

CredentialMD
Medical schoolUniversity Of Pittsburgh School Of Medicine
Graduation year2004
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1669671681
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