1. Home
  2. Directory
  3. California
  4. San Jose
  5. Obstetrics Gynecology
  6. NPI Profile

LILY KHANH-LINH THI NGUYEN MD
NPI 1285720342
Obstetrics & Gynecology in San Jose, CA

Active since October 05, 2006PECOS EnrolledAccepts Medicare Assignment
80.58/100
CMS Quality Rating
500 W TULLY RD, OB/GYN CLINIC, SAN JOSE, CA 95111(408) 885-5553 Get Directions Write a Review

NPPES record last updated: July 9, 2007. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Lily Khanh-linh Thi Nguyen Md NPPES

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

LILY KHANH-LINH THI NGUYEN MD (NPI 1285720342) is an individual obstetrics & gynecology provider in San Jose, California, licensed in California (G78516) and active in the NPI registry since October 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1992).

NPPES Registry Identity

NPI1285720342
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameLILY KHANH-LINH THI NGUYENCredential: MD
Location Address500 W TULLY RD, OB/GYN CLINICSan Jose, CA 95111
Mailing Address39260 Canyon Heights DrFremont, CA 94539 · (510) 794-8466
Phone(408) 885-5553
Sole ProprietorNo
Medical School CMSOtherGraduated 1992
Enumeration DateOctober 5, 2006
Last NPPES UpdateJuly 9, 2007
✔ NPI 1285720342 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in CA · G78516
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
500 W TULLY RD, San Jose, CA 95111
Open in Google Maps ↗

Other Identifiers 3

Medicare ID-Type Unspecified00G785160CA
Medicaid00G785160CA
Medicare UPING40337CA

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

Lily Khanh-linh Thi 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 ID7810020542
PECOS Enrollment IDI20100802000987
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 Lily Nguyen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

County Of Santa Clara
Same address
Federally Qualified Health Center (FQHC)
500 TULLY RD
San Jose, CA 95111
  • Reassigned Medicare billing, California enrollment
  • Also billed through NPI 1588721500 (California)
  • 2,460 clinicians in this Medicare group
NPI 1376538991 (408) 885-5000

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 95111 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
$156.67 typical visit price
range $70.37 – $206.04
Typical copayment $39.16 (range $17.59 – $51.51)
Most-billed visit code 99204
Established Patient
$86.56 typical visit price
range $23.96 – $169.60
Typical copayment $21.64 (range $5.99 – $42.40)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

80.58/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality67.43
Promoting Interoperability100
Improvement Activities40
Cost46.5

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 1285720342. It was assigned to this individual provider in the NPPES registry on October 5, 2006.

Where is Lily Nguyen located?

Lily Nguyen practices at 500 W Tully Rd Ob/Gyn Clinic, San Jose, CA 95111. The listed phone number is (408) 885-5553.

What is Lily Nguyen's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Lily Nguyen enrolled in Medicare?

Yes. Lily 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 Lily Nguyen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Lily Nguyen reassigns Medicare benefits to County Of Santa Clara (San Jose, CA). 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 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 July 9, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.