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Internal Medicine

Ted H. Yamamoto, MD

Works at hospitals in Portland, OR · Oregon

Summary

Ted H. Yamamoto, MD (Internal Medicine) is listed by Medicare at 1 hospital in Portland, OR. NPI 1689012015. 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 Ted H. Yamamoto, 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
13Years since medical school (graduated 2013)
Harvard Medical SchoolMedical school
MaleGender (as listed)
Providence Health and Services OregonGroup practice

Quick answers

Which hospitals does Ted H. Yamamoto work at?
Medicare's official clinician data lists Ted H. Yamamoto at 1 hospital: Providence St Vincent Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Ted H. Yamamoto see patients?
Medicare's clinician data lists 1 practice location in Portland, OR. Call before your visit to confirm the address.
What is Ted H. Yamamoto's specialty?
Medicare lists Internal Medicine as the primary specialty, and also Hospitalist.
Does Ted H. Yamamoto accept Medicare assignment?
Yes. Medicare's clinician data says Ted H. Yamamoto 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 Ted H. Yamamoto?
(503) 216-2906, as listed in official Medicare / NPI Registry data.
What is Ted H. Yamamoto's NPI number?
1689012015. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Ted H. Yamamoto works

Medicare's Facility Affiliation Data lists Ted H. Yamamoto 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 Ted H. Yamamoto is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Ted H. Yamamoto as a member of this group (CMS data updated 2026-10-02).

  • Providence Health and Services Oregon1,433 clinicians in the group

Specialties

Find other Internal Medicine doctors in Oregon →

Other internal medicine doctors in Portland

Clinicians with the same Medicare primary specialty in Portland, OR — not a recommendation.

All internal medicine doctors in Portland →

Clinician information

CredentialMD
Medical schoolHarvard Medical School
Graduation year2013
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1689012015
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