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

Leland W. Petersen, Psychologist, PC

Organization Clinical Psychologist · NPI 1083831408

Leland W. Petersen, Psychologist, PC is a Clinical Psychologist in Glen Head, New York. Licensed in New York. Registered with an NPI since 2007.

Licensed in
NY
In the registry since
2007
What do these letters mean?
PC — Professional corporation
A form of business registration, not a clinical qualification.

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Practice location Address checks out

11 Beechwood Dr
Glen Head, NY 11545-1101
Phone: (516) 671-7509
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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 05430 (NY)

Record details

NPI number1083831408
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Leland Petersen — President · (516) 671-7509
Other names L.W. Petersen, Psychologist, P.C.
NPI enumeratedApril 19, 2007
Last updated in NPPESJune 17, 2008
Mailing address11 Beechwood Dr, Glen Head, NY 11545-1101

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