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Internal Medicine

Guillermo Gowlee, MD

Sees patients in Tamuning, GU · Guam

Summary

Guillermo Gowlee, MD (Internal Medicine) is enrolled with Medicare at 1 practice location in Tamuning, GU. NPI 1700994324. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Guillermo Gowlee, 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

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
38Years since medical school (graduated 1988)
Loma Linda University School Of MedicineMedical school
MaleGender (as listed)
General Conference Corp of SdaGroup practice

Quick answers

Where does Guillermo Gowlee see patients?
Medicare's clinician data lists 1 practice location in Tamuning, GU. Call before your visit to confirm the address.
What is Guillermo Gowlee's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Guillermo Gowlee accept Medicare assignment?
Yes. Medicare's clinician data says Guillermo Gowlee 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 Guillermo Gowlee?
(671) 646-8881, as listed in official Medicare / NPI Registry data.
What is Guillermo Gowlee's NPI number?
1700994324. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Guillermo Gowlee is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Guillermo Gowlee as a member of this group (CMS data updated 2026-10-02).

  • General Conference Corp of Sda51 clinicians in the group

Specialties

Find other Internal Medicine doctors in Guam →

Other internal medicine doctors in Tamuning

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

All internal medicine doctors in Tamuning →

Clinician information

CredentialMD
Medical schoolLoma Linda University School Of Medicine
Graduation year1988
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1700994324
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians