Internal Medicine
Dr. JOHN MASSEY M.D.
Identity confirmed via CMS NPPES · September 30, 2026 · A directory match is not a coverage approval.
Is this your practice? This listing was imported from public provider identity data (CMS NPPES) and has not yet been claimed. Claim this listing to confirm the practice details. Plan acceptance stays unpublished until the practice reports it.
Public record
NPI 1609969724 · enumerated 2006-10-02 · record updated 2025-02-19. Source: CMS NPPES. A listing is not a TRICARE network approval.
NPPES recordGoogle Maps Apple Maps OpenStreetMap
Addresses and phones
- Practice location 8901 ROCKVILLE PIKE, BETHESDA, MD, 20889-2595 (301) 295-0196 Fax (301) 400-0616 Google Maps Apple Maps OpenStreetMap
- Mailing address 1855 SHEPHERD ST NW, WASHINGTON, DC, 20011-5343 (202) 882-4902 Google Maps Apple Maps OpenStreetMap
Specialties
- Internal Medicine 207R00000X · Primary · License Md33079 DC
In this directory
Locations and evidence
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Practice location
BETHESDA, MD, 208892595
Accepting new patientsNot reportedCMS NPPES · September 30, 2026
Plan acceptance
- No published plan acceptance yet. Confirm directly with the practice, or claim this listing if it's yours.