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DR. LILY M. NGUYEN M.D.
NPI 1194097816
Pediatrics in Oakland, CA

Active since January 27, 2012PECOS Enrolled
280 W MACARTHUR BLVD, OAKLAND, CA 94611(510) 396-8408 Get Directions Write a Review

NPPES record last updated: January 13, 2022. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Dr. Lily M. Nguyen M.d. NPPES

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

DR. LILY M. NGUYEN M.D. (NPI 1194097816) is an individual pediatrics provider in Oakland, California, licensed in California (118833) and active in the NPI registry since January 2012. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1194097816
Entity TypeIndividualFemale
Primary Taxonomy208000000X
Provider Legal NameDR. LILY M. NGUYENCredential: M.D.
Location Address280 W MACARTHUR BLVDOakland, CA 94611-5642
Mailing Address898 Davis St Apt 302San Leandro, CA 94577-1554 · (510) 396-8408
Phone(510) 396-8408
Sole ProprietorYes
Enumeration DateJanuary 27, 2012
Last NPPES UpdateJanuary 13, 2022
NPPES CertifiedJanuary 13, 2022
✔ NPI 1194097816 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatricsAllopathic & Osteopathic Physicians
Taxonomy Code208000000X
License✔ Licensed in CA · 118833
Definition
A pediatrician is concerned with the physical, emotional and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. A pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development.
280 W MACARTHUR BLVD, Oakland, CA 94611
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Lily M. Nguyen M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Reassignments

2

Medicare enrollment records show Lily Nguyen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Permanente Medical Group Inc
9.6 mi
Internal Medicine
901 NEVIN
Richmond, CA 94801
  • Reassigned Medicare billing, California enrollment
  • 20,078 clinicians in this Medicare group
NPI 1235226531 (510) 307-1555
Lpch Medical Group Div Of Lucile
27 mi
Children
725 WELCH RD
Palo Alto, CA 94304
  • Reassigned Medicare billing, California enrollment
  • 3,617 clinicians in this Medicare group
NPI 1417907940 (650) 498-6762

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94611 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
$104.51 typical visit price
range $69.00 – $202.35
Typical copayment $26.12 (range $17.25 – $50.58)
Most-billed visit code 99203
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
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 20

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

JESSICA CHANG PHARM.D., APH
Pharmacist
280 W MACARTHUR BLVD
OAKLAND, CA 94611
Alameda County (510) 752-8859
NORMA MIYEKO MARUBAYASHI HOLLOWAY PHARMD
Pharmacist
280 W MACARTHUR BLVD
OAKLAND, CA 94611
Alameda County (510) 752-6468
DIANA HIROS CRNA
Nurse Anesthetist, Certified Registered
280 W MACARTHUR BLVD
OAKLAND, CA 94611
Alameda County (510) 752-6238
IVY I. YU MD
Obstetrics & Gynecology
280 W MACARTHUR BLVD
OAKLAND, CA 94611
Alameda County (510) 752-1000
THERESE M. HICKEY MD
Anesthesiology
280 W MACARTHUR BLVD
OAKLAND, CA 94611
Alameda County (510) 752-1000
JOHN L. JONES MD
Thoracic Surgery (Cardiothoracic Vascular Surgery)
280 W MACARTHUR BLVD
OAKLAND, CA 94611
Alameda County (510) 752-1000
ANNETTE CHENEVEY CRNA
Nurse Anesthetist, Certified Registered
280 W MACARTHUR BLVD
OAKLAND, CA 94611
Alameda County (510) 752-6238
MRS. MICHELE NG PHARM.D.
Pharmacist
280 W MACARTHUR BLVD
OAKLAND, CA 94611
Alameda County (510) 752-6141

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 1194097816. It was assigned to this individual provider in the NPPES registry on January 27, 2012.

Where is Lily Nguyen located?

Lily Nguyen practices at 280 W Macarthur Blvd, Oakland, CA 94611. The listed phone number is (510) 396-8408.

What is Lily Nguyen's specialty?

The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.

Is Lily Nguyen enrolled in Medicare?

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

Which organizations bill Medicare for Lily Nguyen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Lily Nguyen reassigns Medicare benefits to 2 organizations: Permanente Medical Group Inc (Richmond, CA) and Lpch Medical Group Div Of Lucile (Palo Alto, CA). Each 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 Lily Nguyen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Lily Nguyen was last updated on January 13, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.