NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alexandra Hailey Donnelly, DO

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

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

National Provider Identifier

1518543156

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Alexandra Hailey Donnelly
Credential DO
Sex Female
Practice address 101 Nicolls Road, Hsc Level 4, 050, Stony Brook, NY, 11794
Phone (631) 444-3880
Fax (631) 444-3919
Enumeration date Mar 23, 2021
Last updated in NPPES Sep 24, 2024

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary
207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 328616 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Alexandra Donnelly?
The National Provider Identifier (NPI) for Alexandra Donnelly is 1518543156, a Type 1 (individual) record in the CMS NPPES registry.
Where does Alexandra Donnelly practice?
The practice location on file with NPPES is in Stony Brook, NY. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-09-24.