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Internal Medicine

Cynthia A. Chan, MD

Sees patients in Clackamas, OR · Longview, WA · Vancouver, WA · Oregon, Washington

Summary

Cynthia A. Chan, MD (Internal Medicine) is enrolled with Medicare at 4 practice locations in Clackamas, OR, Longview, WA and Vancouver, WA. NPI 1912090895. 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 Cynthia A. Chan, 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
26Years since medical school (graduated 2000)
Ponce School Of MedicineMedical school
FemaleGender (as listed)
Kaiser Foundation Health Plan of the NorthwestGroup practice (+1 more)

Quick answers

Where does Cynthia A. Chan see patients?
Medicare's clinician data lists 4 practice locations, including Clackamas, OR, Longview, WA and Vancouver, WA. Call before your visit to confirm the address.
What is Cynthia A. Chan's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Cynthia A. Chan accept Medicare assignment?
Yes. Medicare's clinician data says Cynthia A. Chan 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 Cynthia A. Chan?
(800) 813-2000, as listed in official Medicare / NPI Registry data.
What is Cynthia A. Chan's NPI number?
1912090895. 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 Cynthia A. Chan is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Cynthia A. Chan as a member of these groups (CMS data updated 2026-10-02).

  • Kaiser Foundation Health Plan of the Northwest1,807 clinicians in the group
  • CRM Physicians LLC62 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
Medical schoolPonce School Of Medicine
Graduation year2000
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1912090895
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