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

Alexander Jon Trei

Individual provider Pediatrics Physician · NPI 1013658632

Alexander Jon Trei is a Pediatrics Physician in Washington, District of Columbia. Licensed in District of Columbia and Maryland. Registered with an NPI since 2022.

Licensed in
DC, MD
In the registry since
2022
Specialties on file
2

Practice location Address checks out

3800 Reservoir Rd NW Ste M3400
Washington, DC 20007-2196
Phone: (202) 444-8161
Fax: (202) 444-4747
Show map & directions

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

Specialties & licences

Pediatrics Physician (primary) Taxonomy 208000000X · Licence CS2100012851 (DC)
Pediatrics Physician Taxonomy 208000000X · Licence D0102964 (MD)

Record details

NPI number1013658632
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedApril 6, 2022
Last updated in NPPESJune 26, 2025
Certification dateJune 26, 2025

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