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

David B Seifer, MD

Individual provider Reproductive Endocrinology Physician · NPI 1336252659

David B Seifer, MD is a Reproductive Endocrinology Physician in Westport, Connecticut. Licensed in Connecticut, New Hampshire, New York and Oregon. Registered with an NPI since 2006.

Licensed in
CT, NH, NY, OR
In the registry since
2006
Specialties on file
4
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

125A Kings Highway N Yale University - Ob/gyn Reproductive Endocrinology
Westport, CT 06880
Phone: (203) 341-8899
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Reproductive Endocrinology Physician (primary) Taxonomy 207VE0102X · Licence 29737 (CT)
Reproductive Endocrinology Physician Taxonomy 207VE0102X · Licence 169526 (NY)
Reproductive Endocrinology Physician Taxonomy 207VE0102X · Licence MD169445 (OR)
Reproductive Endocrinology Physician Taxonomy 207VE0102X · Licence 17734 (NH)

Record details

NPI number1336252659
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 17, 2006
Last updated in NPPESJuly 21, 2022
Mailing address125a Kings Highway North, Yale University - Ob/Gyn Reproductive Endocrinology, Westport, CT 06880

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