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

Mason Lee Hatwan

Individual provider Psychologist · NPI 1609614767

Mason Lee Hatwan is a Psychologist in West Haven, Connecticut. Practices as a sole proprietor. Registered with an NPI since 2024.

In the registry since
2024

Practice location Address checks out

950 Campbell Ave
West Haven, CT 06516-2770
Phone: (203) 932-5711
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X

Record details

NPI number1609614767
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedJuly 15, 2024
Last updated in NPPESJuly 15, 2024
Certification dateJuly 15, 2024
Mailing address45 Sheldon Ter Apt 4, New Haven, CT 06511-2064

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