WILLA XIONG M.D.
NPI 1134535552
Psychiatry & Neurology - Psychiatry in New York, NY
About Willa Xiong M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLA XIONG M.D. (NPI 1134535552) is an individual psychiatry provider in New York, New York, licensed in New York (292372) and active in the NPI registry since July 2014. She is enrolled in Medicare PECOS and is a graduate of Other (2014).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
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
Willa Xiong M.d. 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.
Medicare Billing Reassignments
2Medicare enrollment records show Willa Xiong reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Baltimore, MD 21239
- Reassigned Medicare billing, District of Columbia enrollment
- 3,530 clinicians in this Medicare group
Washington, DC 20007
- Reassigned Medicare billing, District of Columbia enrollment
- 861 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.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 10016 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Willa Xiong's NPI number?
The NPI number for Willa Xiong is 1134535552. It was assigned to this individual provider in the NPPES registry on July 7, 2014.
Where is Willa Xiong located?
Willa Xiong practices at 1 Park Ave Fl 8, New York, NY 10016. The listed phone number is (212) 263-7419.
What is Willa Xiong's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.
Is Willa Xiong enrolled in Medicare?
Yes. Willa Xiong 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 organizations bill Medicare for Willa Xiong's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Willa Xiong reassigns Medicare benefits to 2 organizations: Medstar Medical Group II LLC (Baltimore, MD) and Mgmc LLC (Washington, DC). 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 Willa Xiong's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Willa Xiong accept?
Health plans from Blue Cross and Blue Shield of Texas list Willa Xiong as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Willa Xiong was last updated on June 3, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Willa Xiong, M.D. · NPI 1134535552
Psychiatry physician in New York, New York. Individual provider, active in the CMS NPPES registry since July 7, 2014.
## Identity
- **NPI:** 1134535552 (Entity type: Individual)
- **Enumerated:** July 7, 2014
- **Primary specialty:** Psychiatry & Neurology - Psychiatry · taxonomy 2084P0800X
- **State license:** 292372 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1 PARK AVE FL 8, New York, NY 10016-5802
- **Phone:** (212) 263-7419
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Medstar Medical Group II LLC (NPI 1184046187, Baltimore, MD); Mgmc LLC (NPI 1316949654, Washington, DC) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2014
## Record status
- **NPPES last updated:** June 3, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1134535552) · Data from the CMS NPPES public registry.