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LAC NGUYEN MD
NPI 1558007161
Internal Medicine in Portland, OR

Active since May 06, 2022PECOS EnrolledAccepts Medicare Assignment
10201 SE MAIN ST STE 10B, PORTLAND, OR 97216(503) 255-7550(503) 255-0884 Get Directions Write a Review

NPPES record last updated: August 18, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Lac Nguyen Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

LAC NGUYEN MD (NPI 1558007161) is an individual internal medicine provider in Portland, Oregon, licensed in Oregon (MD224865) and active in the NPI registry since May 2022. She is enrolled in Medicare PECOS, is affiliated with Adventist Health Portland, and is a graduate of Other (2018).

NPPES Registry Identity

NPI1558007161
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameLAC NGUYENCredential: MD
Location Address10201 SE MAIN ST STE 10BPortland, OR 97216-2937
Mailing Address10201 Se Main St Ste 10bPortland, OR 97216-2937 · (503) 255-7550
Phone(503) 255-7550
Fax(503) 255-0884
Sole ProprietorNo
Medical School CMSOtherGraduated 2018
Enumeration DateMay 6, 2022
Last NPPES UpdateAugust 18, 2025
NPPES CertifiedAugust 18, 2025
✔ NPI 1558007161 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in OR · MD224865
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
10201 SE MAIN ST STE 10B, Portland, OR 97216
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include BridgeSpan Health Company, Moda Health Plan, Inc., PacificSource Health Plans and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Lac Nguyen Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2163800814
PECOS Enrollment IDI20250815004262
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Lac Nguyen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Portland Adventist Medical Center
Same address
Family Medicine
10201 SE MAIN ST STE 10A
Portland, OR 97216
  • Reassigned Medicare billing, Oregon enrollment
  • 331 clinicians in this Medicare group
NPI 1750091021 (503) 261-6970

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Adventist Health Portland

Acute Care Hospitals · Portland, OR
2/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number380060
Location10123 SE Market StreetPortland, OR 97216 · Multnomah County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 97216 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$134.16 typical visit price
range $58.99 – $176.88
Typical copayment $33.54 (range $14.74 – $44.22)
Most-billed visit code 99204
Established Patient
$103.51 typical visit price
range $19.32 – $144.79
Typical copayment $25.87 (range $4.83 – $36.19)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Lac Nguyen's NPI number?

The NPI number for Lac Nguyen is 1558007161. It was assigned to this individual provider in the NPPES registry on May 6, 2022.

Where is Lac Nguyen located?

Lac Nguyen practices at 10201 SE Main St Ste 10B, Portland, OR 97216. The listed phone number is (503) 255-7550.

What is Lac Nguyen's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Lac Nguyen enrolled in Medicare?

Yes. Lac Nguyen is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Lac Nguyen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Lac Nguyen reassigns Medicare benefits to Portland Adventist Medical Center (Portland, OR). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Lac Nguyen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Lac Nguyen accept?

Health plans from BridgeSpan Health Company, Moda Health Plan, Inc., PacificSource Health Plans and Regence BlueCross BlueShield of Oregon list Lac Nguyen as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Lac Nguyen affiliated with any hospitals?

According to CMS data, Lac Nguyen is affiliated with Adventist Health Portland.

When was this NPI record last updated?

The NPPES record for Lac Nguyen was last updated on August 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.