Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. John Pierpont Massey IV, MD

Individual provider Internal Medicine Physician · NPI 1609969724

Dr. John Pierpont Massey IV, MD is an Internal Medicine Physician in Bethesda, Maryland. Licensed in District of Columbia. Registered with an NPI since 2006.

Licensed in
DC
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

8901 Rockville Pike
Bethesda, MD 20889-2595
Phone: (301) 295-0196
Fax: (301) 400-0616
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence MD33079 (DC)

Record details

NPI number1609969724
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 2, 2006
Last updated in NPPESFebruary 19, 2025
Certification dateFebruary 19, 2025

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