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Theresa Giannattasio, DO

Pediatrics Physician in Livingston, NJ · enumerated 2012 · practices at Essex-Morris Pediatrics Group.

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

National Provider Identifier

1558620690

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Registry record

Entity type Individual (Type 1)
Name Theresa Giannattasio
Credential DO
Sex Female
Practice address 203 Hillside Ave, Livingston, NJ, 07039
Phone (973) 992-5588
Enumeration date May 10, 2012
Last updated in NPPES Jul 2, 2019

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary
208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 25MB09286900 (NJ) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

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

What is the NPI number for Theresa Giannattasio?
The National Provider Identifier (NPI) for Theresa Giannattasio is 1558620690, a Type 1 (individual) record in the CMS NPPES registry.
Where does Theresa Giannattasio practice?
The practice location on file with NPPES is in Livingston, NJ. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-07-02.