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

Lynne I Portnoy, MD

Individual provider Internal Medicine Physician · NPI 1467554477

Lynne I Portnoy, MD is an Internal Medicine Physician in Syosset, New York. Licensed in Connecticut. Registered with an NPI since 2006.

Licensed in
CT
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

6500 Jericho Tpke
Syosset, NY 11791-4489
Phone: (516) 465-0395
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 044030 (CT)

Record details

NPI number1467554477
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 1, 2006
Last updated in NPPESJune 16, 2014

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