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

Q: 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.

Q: 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.

Q: 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 3 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 April 12, 2021PECOS EnrolledAccepts Medicare Assignment

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: October 18, 2026.

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

On this page

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 and is a graduate of Oakland Univ, William Beaumont School Of Medicine (2021).

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

Medical School CMSOakland Univ, William Beaumont School Of MedicineGraduated 2021

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, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Andrew Yang Xiao 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 ID4688131642

PECOS Enrollment IDI20260810001850

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 Andrew Xiao reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Permanente Medical Group Inc

0.1 mi

Internal Medicine

710 LAWRENCE EXPRESSWAY
Santa Clara, CA 95051

Reassigned Medicare billing, California enrollment
20,078 clinicians in this Medicare group

NPI 1073606299 (408) 851-1000

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 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 system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Andrew Xiao's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Andrew Xiao reassigns Medicare benefits to Permanente Medical Group Inc (Santa Clara, 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 Andrew Xiao'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 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 3 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.