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

Martin N. Seif, Ph D , Psychologist, PC

Organization Clinical Psychologist · NPI 1982992491

Martin N. Seif, Ph D , Psychologist, PC is a Clinical Psychologist in Greenwich, Connecticut. Licensed in New York. Registered with an NPI since 2011.

Licensed in
NY
In the registry since
2011
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

270 Greenwich Ave
Greenwich, CT 06830-6530
Phone: (914) 907-8023
Fax: (203) 629-1212
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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 5457 (NY)

Record details

NPI number1982992491
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Martin Seif — President · (914) 907-8023
NPI enumeratedJuly 18, 2011
Last updated in NPPESApril 24, 2012
Mailing address270 Greenwich Ave, Greenwich, CT 06830-6530

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