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Internal Medicine

Lac H. Nguyen, MD

Works at hospitals in Portland, OR · Oregon

Summary

Dr. Lac H. Nguyen, MD is an internal medicine doctor at 10201 SE Main St, Suite 10b, Portland, OR 97216. Phone: (503) 255-7550. Accepts Medicare assignment. NPI 1558007161. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 10201 SE Main St, Suite 10b, Portland, OR 97216 · Directions
  • Phone: (503) 255‑7550
  • Medicare: Accepts Medicare assignment
  • Hospital: Adventist Health Portland
  • Group practice: Portland Adventist Medical Center
  • Medical school: graduated 2018 (8 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Lac H. Nguyen, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Lac H. Nguyen accept Medicare assignment?
Yes. Medicare's clinician data says Lac H. Nguyen accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
What is Lac H. Nguyen's NPI number?
1558007161. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Lac H. Nguyen works

Medicare's Facility Affiliation Data lists Lac H. Nguyen at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

Practice locations

Addresses where Lac H. Nguyen is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Lac H. Nguyen as a member of this group (CMS data updated October 2, 2026).

  • Portland Adventist Medical Center271 clinicians in the group

Specialties

Find other Internal Medicine doctors in Oregon →

Other internal medicine doctors in Portland

Clinicians with the same Medicare primary specialty in Portland, OR — not a recommendation.

All internal medicine doctors in Portland →

Other clinicians in Portland Adventist Medical Center

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Graduation year2018 (8 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1558007161
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 October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  5. Medicare Care Compare — official Medicare tool to look up clinicians