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Family Practice

Charles J. Mayer, MD

Sees patients in Seattle, WA · Washington

Summary

Charles J. Mayer, MD (Family Practice) is enrolled with Medicare at 1 practice location in Seattle, WA. NPI 1487739298. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

Call(206) 223‑2611 NPI Registry record Medicare profile

From official Medicare data

This page shows what Medicare's official clinician data says about Charles J. Mayer, 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

1Practice location
Family PracticePrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
35Years since medical school (graduated 1991)
Howard University College Of MedicineMedical school
MaleGender (as listed)
Kaiser Foundation Health Plan of WashingtonGroup practice

Quick answers

Where does Charles J. Mayer see patients?
Medicare's clinician data lists 1 practice location in Seattle, WA. Call before your visit to confirm the address.
What is Charles J. Mayer's specialty?
Medicare lists Family Practice as the primary specialty.
Does Charles J. Mayer accept Medicare assignment?
Yes. Medicare's clinician data says Charles J. Mayer 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 Charles J. Mayer offer telehealth?
Medicare's clinician data says Charles J. Mayer offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Charles J. Mayer?
(206) 223-2611, as listed in official Medicare / NPI Registry data.
What is Charles J. Mayer's NPI number?
1487739298. 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 Charles J. Mayer is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Charles J. Mayer as a member of this group (CMS data updated 2026-10-02).

  • Kaiser Foundation Health Plan of Washington1,526 clinicians in the group

Specialties

Find other Family Practice doctors in Washington →

Other family doctors in Seattle

Clinicians with the same Medicare primary specialty in Seattle, WA — not a recommendation.

All family doctors in Seattle →

Clinician information

CredentialMD
Medical schoolHoward University College Of Medicine
Graduation year1991
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1487739298
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