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

Alexandra Leong Mattern

Individual provider Clinical Psychologist · NPI 1306529276

Alexandra Leong Mattern is a Clinical Psychologist in Boston, Massachusetts. Licensed in Massachusetts. Registered with an NPI since 2023.

Licensed in
MA
In the registry since
2023

Practice location Address checks out

150 S Huntington Ave
Boston, MA 02130-4817
Phone: (857) 364-4126
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence PSY10000112 (MA)

Record details

NPI number1306529276
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorNo
NPI enumeratedAugust 8, 2023
Last updated in NPPESAugust 8, 2023
Certification dateAugust 8, 2023

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