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

Dr. John T Tsai, MD

Individual provider Pediatric Adolescent Medicine Physician · NPI 1376527366

Dr. John T Tsai, MD is a Pediatric Adolescent Medicine Physician in Fairfax, Virginia. Licensed in Virginia. Registered with an NPI since 2005.

Licensed in
VA
In the registry since
2005
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

3650 Joseph Siewick Dr Ste 101
Fairfax, VA 22033-1710
Phone: (703) 391-0900
Fax: (703) 391-2919
Show map & directions

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

Specialties & licences

Pediatric Adolescent Medicine Physician (primary) Taxonomy 2080A0000X · Licence 0101238865 (VA)

Record details

NPI number1376527366
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 2, 2005
Last updated in NPPESJuly 13, 2026

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