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Margretta R Seashore, MD

Clinical Genetics (M.D.) Physician in New Haven, CT · enumerated 2005.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1144218207

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Registry record

Entity type Individual (Type 1)
Name Margretta R Seashore
Credential MD
Sex Female
Practice address 20 York St, Children'S Hospital at Yale, West Pavilion, 2nd Floor, New Haven, CT, 06510
Phone (203) 785-2660
Fax (203) 785-3404
Enumeration date Oct 12, 2005
Last updated in NPPES Apr 4, 2011

Taxonomy & licenses

207SG0201X Clinical Genetics (M.D.) Physician Allopathic & Osteopathic Physicians · License 012778 (CT) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
001127786 Medicaid CT -

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Where does Margretta Seashore practice?
The practice location on file with NPPES is in New Haven, CT. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Margretta Seashore?
The National Provider Identifier (NPI) for Margretta Seashore is 1144218207, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-04-04.