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MICHELLE-LINH NGUYEN MD
NPI 1114447596
Internal Medicine in Grass Valley, CA

Active since June 26, 2017Opted out of Medicare · through Jun 27, 2027
101 W. MCKNIGHT WAY STE B, #260, GRASS VALLEY, CA 95949(530) 552-1039 Get Directions Write a Review

NPPES record last updated: July 9, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jul 9, 2025, Jun 26, 2017 (2 updates tracked since 2017).

About Michelle-linh Nguyen Md NPPES

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

MICHELLE-LINH NGUYEN MD (NPI 1114447596) is an individual internal medicine provider in Grass Valley, California, licensed in California (A169414) and active in the NPI registry since June 2017. She has opted out of Medicare through June 27, 2027 and remains eligible to order and refer.

NPPES Registry Identity

NPI1114447596
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameMICHELLE-LINH NGUYENCredential: MD
Location Address101 W. MCKNIGHT WAY STE B, #260Grass Valley, CA 95949-9613
Mailing Address101 W. Mcknight Way Ste B, #260Grass Valley, CA 95949-9613 · (530) 552-1039
Phone(530) 552-1039
Sole ProprietorYes
Enumeration DateJune 26, 2017
Last NPPES UpdateJuly 9, 20252 updates tracked since enumeration
NPPES CertifiedJuly 9, 2025
✔ NPI 1114447596 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · A169414
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.
101 W. MCKNIGHT WAY STE B, Grass Valley, CA 95949
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Other Names 1

Other Name (5)Michelle Nguyen Md

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Michelle-linh Nguyen Md has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from June 27, 2025 through June 27, 2027.

Opt-Out Effective DateJune 27, 2025
Opt-Out In Effect ThroughJune 27, 2027Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95949 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
$133.94 typical visit price
range $58.87 – $176.60
Typical copayment $33.48 (range $14.71 – $44.15)
Most-billed visit code 99204
Established Patient
$103.36 typical visit price
range $19.28 – $144.60
Typical copayment $25.84 (range $4.82 – $36.15)
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 Michelle-linh Nguyen's NPI number?

The NPI number for Michelle-linh Nguyen is 1114447596. It was assigned to this individual provider in the NPPES registry on June 26, 2017. The provider is also known as Michelle Nguyen MD.

Where is Michelle-linh Nguyen located?

Michelle-linh Nguyen practices at 101 W. Mcknight Way Ste B #260, Grass Valley, CA 95949. The listed phone number is (530) 552-1039.

What is Michelle-linh Nguyen's specialty?

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

Is Michelle-linh Nguyen enrolled in Medicare?

No. Michelle-linh Nguyen has opted out of Medicare through June 27, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.

When was this NPI record last updated?

The NPPES record for Michelle-linh Nguyen was last updated on July 9, 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.