DR. YANG XU M.D.
NPI 1093006983
Psychiatry & Neurology - Psychiatry in Mountain View, CA
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
Specialties & Licenses 2
Other Names 1
Secondary Practice Locations 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Yang Xu M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
5Medicare enrollment records show Yang Xu reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Mountain View, CA 94040
- Reassigned Medicare billing, California enrollment
- 2,460 clinicians in this Medicare group
San Jose, CA 95128
- Reassigned Medicare billing, California enrollment
- 63 clinicians in this Medicare group
Santa Cruz, CA 95060
- Reassigned Medicare billing, California enrollment
- 49 clinicians in this Medicare group
San Francisco, CA 94143
- Reassigned Medicare billing, California enrollment
- 82 clinicians in this Medicare group
Walnut Creek, CA 94597
- Reassigned Medicare billing, California enrollment
- 149 clinicians in this Medicare group
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 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.
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.
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.
MOUNTAIN VIEW, CA 94040
MOUNTAIN VIEW, CA 94040
MOUNTAIN VIEW, CA 94040
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.
Which organizations bill Medicare for Yang Xu's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Yang Xu reassigns Medicare benefits to 5 organizations: County Of Santa Clara (Mountain View, CA), Asian Americans For Community Involvement Of Santa Clara County, Inc (San Jose, CA), County Of Santa Cruz (Santa Cruz, CA), Regents Of The University Of California - Ucsf (San Francisco, CA) and Comprehensive Psychiatric Services, A Medical Group (Walnut Creek, 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 Yang Xu'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 Yang Xu was last updated on October 24, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Dr. Yang Xu, M.D. · NPI 1093006983
Psychiatry physician in Mountain View, California. Individual provider, active in the CMS NPPES registry since April 26, 2011.
## Identity
- **NPI:** 1093006983 (Entity type: Individual)
- **Enumerated:** April 26, 2011
- **Primary specialty:** Psychiatry & Neurology - Psychiatry · taxonomy 2084P0800X
- **State license:** A130870 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 2490 HOSPITAL DR STE 212, Mountain View, CA 94040-4125
- **Phone:** (650) 727-1523
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 5 organizations under Medicare reassignment (form CMS-855R): County Of Santa Clara (NPI 1912650672, Mountain View, CA); Asian Americans For Community Involvement Of Santa Clara County, Inc (NPI 1326052291, San Jose, CA); County Of Santa Cruz (NPI 1659315430, Santa Cruz, CA); Regents Of The University Of California - Ucsf (NPI 1265890263, San Francisco, CA); Comprehensive Psychiatric Services, A Medical Group (NPI 1184785834, Walnut Creek, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2004
## Record status
- **NPPES last updated:** October 24, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1093006983) · Data from the CMS NPPES public registry.