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Internal Medicine

Christopher J. Mays, MD

Sees patients in Washington, DC · Olney, MD · Bethesda, MD · District of Columbia, Maryland

Summary

Christopher J. Mays, MD (Internal Medicine) is enrolled with Medicare at 3 practice locations in Washington, DC, Olney, MD and Bethesda, MD. NPI 1053306829. 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 Christopher J. Mays, 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
38Years since medical school (graduated 1988)
University Of Maryland School Of MedicineMedical school
MaleGender (as listed)
MedStar Medical Group II LLCGroup practice (+1 more)

Quick answers

Where does Christopher J. Mays see patients?
Medicare's clinician data lists 3 practice locations, including Washington, DC, Olney, MD and Bethesda, MD. Call before your visit to confirm the address.
What is Christopher J. Mays's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Christopher J. Mays accept Medicare assignment?
Yes. Medicare's clinician data says Christopher J. Mays 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 Christopher J. Mays offer telehealth?
Medicare's clinician data says Christopher J. Mays offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Christopher J. Mays?
(202) 429-2401, as listed in official Medicare / NPI Registry data.
What is Christopher J. Mays's NPI number?
1053306829. 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 Christopher J. Mays is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Christopher J. Mays as a member of these groups (CMS data updated 2026-10-02).

  • MedStar Medical Group II LLC3,767 clinicians in the group
  • Suburban/Nrh Medical Rehabilitation Inc941 clinicians in the group

Specialties

Find other Internal Medicine doctors in District of Columbia →

Other internal medicine doctors in Washington

Clinicians with the same Medicare primary specialty in Washington, DC — not a recommendation.

All internal medicine doctors in Washington →

Clinician information

CredentialMD
Medical schoolUniversity Of Maryland School Of Medicine
Graduation year1988
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1053306829
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