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DR. YANG XU M.D.
NPI 1093006983
Psychiatry & Neurology - Psychiatry in Mountain View, CA

Active since April 26, 2011PECOS Enrolled
80.58/100
CMS Quality Rating
2490 HOSPITAL DR STE 212, MOUNTAIN VIEW, CA 94040(650) 727-1523 Get Directions Write a Review

NPPES record last updated: October 24, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Jan 7, 2025, Jun 24, 2021, Jan 27, 2021 and 2 more (5 updates tracked since 2016).

About Dr. Yang Xu M.d. NPPES

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

DR. YANG XU M.D. (NPI 1093006983) is an individual psychiatry provider in Mountain View, California, licensed in California (A130870) and active in the NPI registry since April 2011. She is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (2004).

NPPES Registry Identity

NPI1093006983
Entity TypeIndividualFemale
Primary Taxonomy2084P0800X
Provider Legal NameDR. YANG XUCredential: M.D.
Location Address2490 HOSPITAL DR STE 212Mountain View, CA 94040-4125
Mailing Address2400 Moorpark Ave Ste 300San Jose, CA 95128-2680 · (408) 975-2730 · Fax (408) 975-2745
Phone(650) 727-1523
Sole ProprietorNo
Medical School CMSOtherGraduated 2004
Enumeration DateApril 26, 2011
Last NPPES UpdateOctober 24, 20255 updates tracked since enumeration
NPPES CertifiedOctober 24, 2025
✔ NPI 1093006983 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in CA · A130870
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
Also ListedPsychiatry & Neurology · Child & Adolescent PsychiatryTaxonomy 2084P0804X · License A130870 (CA)
2490 HOSPITAL DR STE 212, Mountain View, CA 94040
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Other Names 1

Other Name (5)Ada Yang Xu

Secondary Practice Locations 2

Location 1120 Santa Margarita Ave Bldg BMenlo Park, CA 94025-2725 · Phone (650) 727-1523
Location 22400 Moorpark Ave Ste 300San Jose, CA 95128-2680 · Phone (408) 975-2730 · Fax (408) 975-2745

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

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

PECOS PAC ID4789982711
PECOS Enrollment IDI20160407001405
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 94040 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
$206.04 typical visit price
range $70.37 – $206.04
Typical copayment $51.51 (range $17.59 – $51.51)
Most-billed visit code 99205
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

Other Providers at the Same Location NPPES 3

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

HAND SURGICAL ASSOCIATES, INC.
Orthopaedic Surgery (Hand Surgery)
2490 HOSPITAL DR STE 212
MOUNTAIN VIEW, CA 94040
Santa Clara County (650) 962-4536
ANTHONY H NGUYEN M.D.
Orthopaedic Surgery (Hand Surgery)
2490 HOSPITAL DR STE 212
MOUNTAIN VIEW, CA 94040
Santa Clara County (650) 962-4536
ARC (ACHIEVING RESILIENCE THROUGH CONNECTION)
Psychiatry & Neurology (Psychiatry)
2490 HOSPITAL DR STE 212
MOUNTAIN VIEW, CA 94040
Santa Clara County (650) 727-1523

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 Yang Xu's NPI number?

The NPI number for Yang Xu is 1093006983. It was assigned to this individual provider in the NPPES registry on April 26, 2011. The provider is also known as Ada Yang Xu.

Where is Yang Xu located?

Yang Xu practices at 2490 Hospital Dr Ste 212, Mountain View, CA 94040. The listed phone number is (650) 727-1523.

What is Yang Xu's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

Is Yang Xu enrolled in Medicare?

Yes. Yang Xu is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Yang Xu was last updated on October 24, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.