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Internal Medicine

May Nguyen, MD

Works at hospitals in Dededo, GU · Spokane, WA · Guam, Washington

Summary

May Nguyen, MD (Internal Medicine) is listed by Medicare at 2 hospitals in Dededo, GU and Spokane, WA. NPI 1497049217. 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 May Nguyen, 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
15Years since medical school (graduated 2011)
FemaleGender (as listed)
Guam Healthcare Development IncorporatedGroup practice

Quick answers

Which hospitals does May Nguyen work at?
Medicare's official clinician data lists May Nguyen at 2 hospitals: Guam Regional Medical City and Providence Holy Family Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does May Nguyen see patients?
Medicare's clinician data lists 1 practice location in Dededo, GU. Call before your visit to confirm the address.
What is May Nguyen's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does May Nguyen accept Medicare assignment?
Yes. Medicare's clinician data says May Nguyen 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 May Nguyen?
(671) 645-5500, as listed in official Medicare / NPI Registry data.
What is May Nguyen's NPI number?
1497049217. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where May Nguyen works

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

Group practices

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

  • Guam Healthcare Development Incorporated207 clinicians in the group

Specialties

Find other Internal Medicine doctors in Guam →

Other internal medicine doctors in Dededo

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

All internal medicine doctors in Dededo →

Clinician information

CredentialMD
Graduation year2011
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1497049217
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