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

Robert John Postlethwaite, MD

Individual provider Gastroenterology Physician · NPI 1457988255

Robert John Postlethwaite, MD is a Gastroenterology Physician in Fairfax, Virginia. Works from 2 locations. Licensed in Virginia.

Licensed in
VA
In the registry since
2020
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

3028 Javier Rd Ste 300
Fairfax, VA 22031-4622
Phone: (703) 698-8960
Fax: (703) 828-0961
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 3700 Joseph Siewick Dr Ste 308, Fairfax, VA 22033-1739 — (703) 716-8700

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 0101289327 (VA)

Record details

NPI number1457988255
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 24, 2020
Last updated in NPPESJune 30, 2026
Certification dateJune 30, 2026
Mailing address3028 Javier Rd Ste 300, Fairfax, VA 22031-4622

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