Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Bruce John Grattan Jr., DO, MS, RD

Emergency Medicine Physician in Gouverneur, NY · enumerated 2019.

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

National Provider Identifier

1265096911

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Bruce John Grattan Jr.

Credential DO, MS, RD

Sex Male

Practice address Gouverneur Hospital, 77 West Barney Street, Gouverneur, NY, 13642

Phone (315) 287-1000

Enumeration date Apr 29, 2019

Last updated in NPPES May 8, 2023

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 34.015003 (OH) Secondary

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 316792 (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

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 Bruce Grattan?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-05-08.