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DR. LYDIA Q XIONG AU.D.
NPI 1669046165
Audiologist in Madison, WI

Active since May 18, 2021
600 HIGHLAND AVE, MADISON, WI 53792(608) 262-3147 Get Directions Write a Review

NPPES record last updated: October 25, 2022. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Oct 25, 2022, May 18, 2021 (2 updates tracked since 2021).

About Dr. Lydia Q Xiong Au.d. NPPES

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

DR. LYDIA Q XIONG AU.D. (NPI 1669046165) is an individual audiologist in Madison, Wisconsin, licensed in Wisconsin (739) and active in the NPI registry since May 2021.

NPPES Registry Identity

NPI1669046165
Entity TypeIndividualFemale
Primary Taxonomy231H00000X
Provider Legal NameDR. LYDIA Q XIONGCredential: AU.D.
Location Address600 HIGHLAND AVEMadison, WI 53792-4199
Mailing Address7974 Uw Health CtMiddleton, WI 53562-5531
Phone(608) 262-3147
Sole ProprietorNo
Enumeration DateMay 18, 2021
Last NPPES UpdateOctober 25, 20222 updates tracked since enumeration
NPPES CertifiedOctober 25, 2022
✔ NPI 1669046165 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAudiologistSpeech, Language and Hearing Service Providers
Taxonomy Code231H00000X
License✔ Licensed in WI · 739
Definition
(1) A specialist in evaluation, habilitation and rehabilitation of those whose communication disorders center in whole or in part in hearing function. Audiologists are autonomous professionals who identify, assess, and manage disorders of the auditory, balance and other neural systems. Audiologists provide audiological (aural) rehabilitation to children and adults across the entire age span. Audiologists select, fit and dispense amplification systems such as hearing aids and related devices. (2) An audiologist is a person qualified by a master's degree in audiology, licensed by the state, where applicable, and practicing within the scope of that license. Audiologists evaluate and treat patients with impaired hearing. They plan, direct and conduct rehabilitative programs with audiotry substitutional devises (hearing aids) and other therapy.
600 HIGHLAND AVE, Madison, WI 53792
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Other Names 1

Former Name (1)Lydia Smrz

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Group Health Cooperative-SCW.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Lydia Q Xiong Au.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Billing Reassignment

Medicare enrollment records show Lydia Xiong reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

University Of Wisconsin Medical Foundation, Inc
4.8 mi
Multi-Specialty
7974 UW HEALTH COURT
Middleton, WI 53562
  • Reassigned Medicare billing, Wisconsin enrollment
  • 2,832 clinicians in this Medicare group
NPI 1598784555 (608) 829-5485

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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.

JASON ALAN CHRISTENSEN PHARMD
Pharmacist
600 HIGHLAND AVE, COMPLIANCE MAIL CODE 2433
MADISON, WI 53792
Dane County (608) 662-0817
LAURA JEAN KOPPLIN MD, PHD
Ophthalmology
600 HIGHLAND AVE
MADISON, WI 53792
Dane County (608) 263-6070
HAGGI MAZEH MD
Surgery
600 HIGHLAND AVE
MADISON, WI 53792
Dane County (608) 265-8072
DR. SWAPNIL SUNIL LANJEWAR M.D.
Internal Medicine (Infectious Disease)
600 HIGHLAND AVE
MADISON, WI 53792
Dane County (608) 263-0946
DR. MATTHEW JAMES HOYT M.D.
Anesthesiology
600 HIGHLAND AVE
MADISON, WI 53792
Dane County (608) 263-8100
VANESSA MERCEDES WELTEN MD MPH
Transplant Surgery
600 HIGHLAND AVE
MADISON, WI 53792
Dane County (617) 732-5500
JOHN HENRY NORMAN HARRISON
Anesthesiology
600 HIGHLAND AVE
MADISON, WI 53792
Dane County (608) 263-8100
PIPPA FROUKTE COSPER MD
Radiology (Radiation Oncology)
600 HIGHLAND AVE
MADISON, WI 53792
Dane County (608) 263-8500

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 Lydia Xiong's NPI number?

The NPI number for Lydia Xiong is 1669046165. It was assigned to this individual provider in the NPPES registry on May 18, 2021. The provider is also known as Lydia Smrz.

Where is Lydia Xiong located?

Lydia Xiong practices at 600 Highland Ave, Madison, WI 53792. The listed phone number is (608) 262-3147.

What is Lydia Xiong's specialty?

The primary specialty registered for this NPI is Audiologist with taxonomy code 231H00000X.

Is Lydia Xiong enrolled in Medicare?

Yes. Lydia Xiong is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Lydia Xiong's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Lydia Xiong reassigns Medicare benefits to University Of Wisconsin Medical Foundation, Inc (Middleton, WI). 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 Lydia Xiong's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Lydia Xiong accept?

Health plans from Anthem Blue Cross and Blue Shield and Group Health Cooperative-SCW list Lydia 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 Lydia Xiong was last updated on October 25, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.