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Diagnostic Radiology

Eric W. Spak, MD

Works at hospitals in Tamuning, GU · Dededo, GU · Guam

Summary

Eric W. Spak, MD (Diagnostic Radiology) is listed by Medicare at 2 hospitals in Tamuning, GU and Dededo, GU. NPI 1053525170. 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 Eric W. Spak, 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

Diagnostic RadiologyPrimary specialty
YesAccepts Medicare assignment
42Years since medical school (graduated 1984)
Georgetown University School Of MedicineMedical school
MaleGender (as listed)
Guam Healthcare Development IncorporatedGroup practice (+2 more)

Quick answers

Which hospitals does Eric W. Spak work at?
Medicare's official clinician data lists Eric W. Spak at 2 hospitals: Guam Memorial Hospital Authority and Guam Regional Medical City. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Eric W. Spak see patients?
Medicare's clinician data lists 4 practice locations, including Dededo, GU and Tamuning, GU. Call before your visit to confirm the address.
What is Eric W. Spak's specialty?
Medicare lists Diagnostic Radiology as the primary specialty, and also Interventional Radiology.
Does Eric W. Spak accept Medicare assignment?
Yes. Medicare's clinician data says Eric W. Spak 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 Eric W. Spak?
(671) 645-5500, as listed in official Medicare / NPI Registry data.
What is Eric W. Spak's NPI number?
1053525170. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Eric W. Spak works

Medicare's Facility Affiliation Data lists Eric W. Spak 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 Eric W. Spak is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Eric W. Spak as a member of these groups (CMS data updated 2026-10-02).

  • Guam Healthcare Development Incorporated207 clinicians in the group
  • Guam Memorial Hospital131 clinicians in the group
  • Guam X-Ray30 clinicians in the group

Specialties

Find other Diagnostic Radiology doctors in Guam →

Other radiologists in Dededo

Clinicians with the same Medicare primary specialty in Dededo, GU — not a recommendation.

All radiologists in Dededo →

Clinician information

CredentialMD
Medical schoolGeorgetown University School Of Medicine
Graduation year1984
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1053525170
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