Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Timothy Robert Gandolfo, DO

Family Medicine Physician in Stony Brook, NY · enumerated 2021.

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

National Provider Identifier

1891375671

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Registry record

Entity type Individual (Type 1)

Name Dr. Timothy Robert Gandolfo

Credential DO

Sex Male

Practice address 101 County Rd 97, Stony Brook, NY, 11794

Phone (631) 689-8333

Enumeration date Apr 14, 2021

Last updated in NPPES Jun 30, 2026

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 330997 (NY) 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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Timothy Gandolfo?

Timothy Gandolfo is registered in NPPES with the primary taxonomy of Family Medicine Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

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Robert Bhatia Student in an Organized Health Care Education/Training Program · Stony Brook, NY NPI 1366238172 Rosh Bharthi Student in an Organized Health Care Education/Training Program · Stony Brook, NY NPI 1275426330 Mark Abdurakhmanov Student in an Organized Health Care Education/Training Program · Stony Brook, NY NPI 1265370076 David Li Student in an Organized Health Care Education/Training Program · Stony Brook, NY NPI 1497693196 Mallory Nargi Maternal Newborn Registered Nurse · Stony Brook, NY NPI 1457299174 Anirudh Murthy Student in an Organized Health Care Education/Training Program · Stony Brook, NY NPI 1528906245 Tasiyah Essop Student in an Organized Health Care Education/Training Program · Stony Brook, NY NPI 1164360939 Navida Wazeed Student in an Organized Health Care Education/Training Program · Stony Brook, NY NPI 1942148713

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-30.