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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

ANDREW YANG XIAO MD
NPI 1124608229
Pathology - Anatomic Pathology & Clinical Pathology in Santa Clara, CA

Active since April 12, 2021PECOS Enrolled
700 LAWRENCE EXPY DEPT 204, SANTA CLARA, CA 95051(669) 288-1846 Get Directions Write a Review

NPPES record last updated: July 7, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jul 7, 2026, Apr 12, 2021 (2 updates tracked since 2021).

About Andrew Yang Xiao Md NPPES

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

ANDREW YANG XIAO MD (NPI 1124608229) is an individual anatomic pathology & clinical pathology provider in Santa Clara, California, licensed in California (A191461) and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1124608229
Entity TypeIndividualMale
Primary Taxonomy207ZP0102X
Provider Legal NameANDREW YANG XIAOCredential: MD
Location Address700 LAWRENCE EXPY DEPT 204Santa Clara, CA 95051-5173
Mailing Address700 Lawrence Expy Dept 204Santa Clara, CA 95051-5173 · (669) 288-1846
Phone(669) 288-1846
Sole ProprietorNo
Enumeration DateApril 12, 2021
Last NPPES UpdateJuly 7, 20262 updates tracked since enumeration
NPPES CertifiedJuly 7, 2026
✔ NPI 1124608229 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPathology · Anatomic Pathology & Clinical PathologyAllopathic & Osteopathic Physicians
Taxonomy Code207ZP0102X
License✔ Licensed in CA · A191461
Definition
A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.
700 LAWRENCE EXPY DEPT 204, Santa Clara, CA 95051
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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)

Andrew Yang Xiao Md 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95051 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
$121.77 typical visit price
range $23.96 – $169.60
Typical copayment $30.44 (range $5.99 – $42.40)
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 Andrew Xiao's NPI number?

The NPI number for Andrew Xiao is 1124608229. It was assigned to this individual provider in the NPPES registry on April 12, 2021.

Where is Andrew Xiao located?

Andrew Xiao practices at 700 Lawrence Expy Dept 204, Santa Clara, CA 95051. The listed phone number is (669) 288-1846.

What is Andrew Xiao's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.

Is Andrew Xiao enrolled in Medicare?

Yes. Andrew Xiao is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Andrew Xiao was last updated on July 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 45 days 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.