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Emergency Medicine

Bruce J. Grattan Jr., DO

Works at hospitals in Potsdam, NY · Gouverneur, NY · Massena, NY · New York

Summary

Bruce J. Grattan Jr., DO (Emergency Medicine) is listed by Medicare at 3 hospitals in Potsdam, NY, Gouverneur, NY and Massena, NY. NPI 1265096911. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Bruce J. Grattan Jr., joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Emergency MedicinePrimary specialty
YesAccepts Medicare assignment
7Years since medical school (graduated 2019)
MaleGender (as listed)
Canton-Potsdam HospitalGroup practice (+1 more)

Quick answers

Which hospitals does Bruce J. Grattan Jr. work at?
Medicare's official clinician data lists Bruce J. Grattan Jr. at 3 hospitals: Canton-Potsdam Hospital, Gouverneur Hospital and SLHS Massena, Inc. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Bruce J. Grattan Jr. see patients?
Medicare's clinician data lists 3 practice locations, including Potsdam, NY and Gouverneur, NY. Call before your visit to confirm the address.
What is Bruce J. Grattan Jr.'s specialty?
Medicare lists Emergency Medicine as the primary specialty.
Does Bruce J. Grattan Jr. accept Medicare assignment?
Yes. Medicare's clinician data says Bruce J. Grattan Jr. accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Bruce J. Grattan Jr.?
(315) 261-5550, as listed in official Medicare / NPI Registry data.
What is Bruce J. Grattan Jr.'s NPI number?
1265096911. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Bruce J. Grattan Jr. works

Medicare's Facility Affiliation Data lists Bruce J. Grattan Jr. at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Bruce J. Grattan Jr. is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Bruce J. Grattan Jr. as a member of these groups (CMS data updated 2026-10-02).

  • Canton-Potsdam Hospital252 clinicians in the group
  • Gouverneur Hospital28 clinicians in the group

Specialties

Find other Emergency Medicine doctors in New York →

Other emergency medicine doctors in Potsdam

Clinicians with the same Medicare primary specialty in Potsdam, NY — not a recommendation.

All emergency medicine doctors in Potsdam →

Clinician information

CredentialDO
Graduation year2019
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1265096911
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians