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

Internal Medicine

John C. Doan, MD

Works at hospitals in Vancouver, WA · Washington

Summary

John C. Doan, MD (Internal Medicine) is listed by Medicare at 1 hospital in Vancouver, WA. NPI 1609194398. 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 John C. Doan, 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
17Years since medical school (graduated 2009)
MaleGender (as listed)
Kaiser Foundation Health Plan of the NorthwestGroup practice

Quick answers

Which hospitals does John C. Doan work at?
Medicare's official clinician data lists John C. Doan at 1 hospital: PeaceHealth Southwest Medical Cente. This is where the clinician works or has privileges; call the hospital to confirm.
Where does John C. Doan see patients?
Medicare's clinician data lists 2 practice locations, including Clackamas, OR and Vancouver, WA. Call before your visit to confirm the address.
What is John C. Doan's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does John C. Doan accept Medicare assignment?
Yes. Medicare's clinician data says John C. Doan 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 John C. Doan?
(800) 813-2000, as listed in official Medicare / NPI Registry data.
What is John C. Doan's NPI number?
1609194398. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where John C. Doan works

Medicare's Facility Affiliation Data lists John C. Doan 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 John C. Doan is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists John C. Doan as a member of this group (CMS data updated 2026-10-02).

  • Kaiser Foundation Health Plan of the Northwest1,807 clinicians in the group

Specialties

Find other Internal Medicine doctors in Oregon →

Other internal medicine doctors in Clackamas

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

All internal medicine doctors in Clackamas →

Clinician information

CredentialMD
Graduation year2009
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1609194398
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