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

Individual provider Obstetrics & Gynecology Physician · NPI 1053309641

Heidi S Flagg, MD is an Obstetrics & Gynecology Physician in New York, New York. Licensed in New York. Registered with an NPI since 2005.

Licensed in
NY
In the registry since
2005
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

135 Spring St 2nd Fl
New York, NY 10012-3858
Phone: (212) 219-1187
Fax: (212) 219-1538
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence 213720 (NY)

Record details

NPI number1053309641
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 9, 2005
Last updated in NPPESJuly 13, 2026

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