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

Barbara L. Seifert, MD, PC

Organization Pediatric Cardiology Physician · NPI 1851438873

Barbara L. Seifert, MD, PC is a Pediatric Cardiology Physician in Smithtown, New York. Registered with an NPI since 2007.

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

285 Middle Country Rd Ste LL-2
Smithtown, NY 11787
Phone: (631) 979-4541
Fax: (631) 979-4546
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pediatric Cardiology Physician (primary) Taxonomy 2080P0202X

Record details

NPI number1851438873
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Barbara Seifert — President · (631) 979-4541
NPI enumeratedJanuary 31, 2007
Last updated in NPPESAugust 22, 2020
Mailing address285 Middle Country Road, Suite Ll-2, Smithtown, NY 11787

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