LILY HOAI-AN NGUYEN MD
NPI 1376292698
Internal Medicine in Sterling, VA

Q: What is Lily Nguyen's NPI number?

The NPI number for Lily Nguyen is 1376292698. It was assigned to this individual provider in the NPPES registry on March 23, 2022.

Q: What is Lily Nguyen's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Lily Nguyen was last updated on June 24, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.

Active since March 23, 2022PECOS Enrolled

46440 BENEDICT DR STE 208, STERLING, VA 20164(571) 665-6526 Get Directions Write a Review

NPPES record last updated: June 24, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

On this page

About Lily Hoai-an Nguyen Md NPPES

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

LILY HOAI-AN NGUYEN MD (NPI 1376292698) is an individual internal medicine provider in Sterling, Virginia, licensed in Virginia (0101286598) and active in the NPI registry since March 2022. She is enrolled in Medicare PECOS and is a graduate of Eastern Virginia Medical School (2022).

NPPES Registry Identity

NPI1376292698

Entity TypeIndividualFemale

Primary Taxonomy207R00000X

Provider Legal NameLILY HOAI-AN NGUYENCredential: MD

Location Address46440 BENEDICT DR STE 208Sterling, VA 20164-6602

Mailing Address46440 Benedict Dr Ste 208Sterling, VA 20164-6602 · (571) 665-6526

Phone(571) 665-6526

Sole ProprietorNo

Medical School CMSEastern Virginia Medical SchoolGraduated 2022

Enumeration DateMarch 23, 2022

Last NPPES UpdateJune 24, 2025

NPPES CertifiedJune 24, 2025

✔ NPI 1376292698 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

License✔ Licensed in VA · 0101286598

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.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

46440 BENEDICT DR STE 208, Sterling, VA 20164

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Lily Hoai-an Nguyen Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID3375925688

PECOS Enrollment IDI20251007001146

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20164 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

$129.04 typical visit price

range $56.19 – $170.30

Typical copayment $32.26 (range $14.04 – $42.57)

Most-billed visit code 99204

Established Patient

$99.13 typical visit price

range $18.07 – $138.91

Typical copayment $24.78 (range $4.51 – $34.72)

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.

Other Providers at the Same Location NPPES 3

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ALLISON T HUBBARD FNP

Nurse Practitioner (Family)

46440 BENEDICT DR STE 208
STERLING, VA 20164

Loudoun County (571) 434-0022

DR. ERICK DANIEL TEMOKA M.D.

Pediatrics

46440 BENEDICT DR STE 208
STERLING, VA 20164

Loudoun County (571) 665-6500

KIRSTEN L PIERSON

Nurse Practitioner (Gerontology)

46440 BENEDICT DR STE 208
STERLING, VA 20164

Loudoun County (571) 665-6526

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 Lily Nguyen's NPI number?

The NPI number for Lily Nguyen is 1376292698. It was assigned to this individual provider in the NPPES registry on March 23, 2022.

Where is Lily Nguyen located?

Lily Nguyen practices at 46440 Benedict Dr Ste 208, Sterling, VA 20164. The listed phone number is (571) 665-6526.

What is Lily Nguyen's specialty?

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

Is Lily Nguyen enrolled in Medicare?

Yes. Lily Nguyen is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Lily Nguyen was last updated on June 24, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.