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YINGYU GAO MD
NPI 1003435058
Allergy & Immunology in Madison, WI

Active since April 10, 2020PECOS EnrolledAccepts Medicare Assignment
1821 S STOUGHTON RD, MADISON, WI 53716(608) 260-6000(608) 260-6429 Get Directions Write a Review

NPPES record last updated: November 11, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Nov 11, 2025, Jun 25, 2023, Apr 10, 2020 (3 updates tracked since 2020).

About Yingyu Gao Md NPPES

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

YINGYU GAO MD (NPI 1003435058) is an individual allergy & immunology provider in Madison, Wisconsin, licensed in Wisconsin (81929-20) and active in the NPI registry since April 2020. He is enrolled in Medicare PECOS, is affiliated with Ssm Health St Mary's Hospital - Madison, and maintains a secondary practice location in Madison.

NPPES Registry Identity

NPI1003435058
Entity TypeIndividualMale
Primary Taxonomy207K00000X
Provider Legal NameYINGYU GAOCredential: MD
Location Address1821 S STOUGHTON RDMadison, WI 53716-2257
Mailing Address1821 S Stoughton RdMadison, WI 53716-2257 · (608) 260-6000 · Fax (608) 260-6429
Phone(608) 260-6000
Fax(608) 260-6429
Sole ProprietorNo
Medical School CMSOtherGraduated 2020
Enumeration DateApril 10, 2020
Last NPPES UpdateNovember 11, 20253 updates tracked since enumeration
NPPES CertifiedNovember 11, 2025
✔ NPI 1003435058 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAllergy & ImmunologyAllopathic & Osteopathic Physicians
Taxonomy Code207K00000X
License✔ Licensed in WI · 81929-20
Definition
An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Selected examples of such conditions include asthma, anaphylaxis, rhinitis, eczema, and adverse reactions to drugs, foods, and insect stings as well as immune deficiency diseases (both acquired and congenital), defects in host defense, and problems related to autoimmune disease, organ transplantation, or malignancies of the immune system.
Also ListedInternal MedicineTaxonomy 207R00000X · License 81929-20 (WI)
1821 S STOUGHTON RD, Madison, WI 53716
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Secondary Practice Location 1

Location 1600 Highland AveMadison, WI 53792-0001 · Phone (608) 263-6400

Other Identifiers 1

Medicaid1003435058WI

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Dean Health Plan.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

Yingyu Gao 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 ID7416379185
PECOS Enrollment IDI20251015001084
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 Yingyu Gao reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Dean Health Systems, Inc
4.7 mi
Allergy & Immunology
1211 FISH HATCHERY RD
Madison, WI 53715
  • Reassigned Medicare billing, Wisconsin enrollment
  • 1,377 clinicians in this Medicare group
NPI 1053358846 (608) 252-8000

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

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Ssm Health St Mary's Hospital - Madison

Acute Care Hospitals · Madison, WI
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number520083
Location700 South Park StMadison, WI 53715 · Dane County
Emergency services Birthing friendly

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.

NATHAN JUNG M.D.
Urology
1821 S STOUGHTON RD
MADISON, WI 53716
Dane County (608) 260-6000
MARIA Z DIN DO
Family Medicine
1821 S STOUGHTON RD
MADISON, WI 53716
Dane County (608) 260-6000
MS. JESSICA POIRIER
Family Medicine
1821 S STOUGHTON RD
MADISON, WI 53716
Dane County (608) 260-6000
RACHAEL SHANGRAW
Dietitian, Registered
1821 S STOUGHTON RD
MADISON, WI 53716
Dane County (309) 242-5548
ROSA A GILESTRA MD
Family Medicine
1821 S STOUGHTON RD
MADISON, WI 53716
Dane County (608) 260-6000
TRACY L TODOROVIC SLP
Speech-Language Pathologist
1821 S STOUGHTON RD
MADISON, WI 53716
Dane County (608) 260-6000
MILTON H JOHNSON MD
Emergency Medicine
1821 S STOUGHTON RD, DEAN MEDICAL CENTER
MADISON, WI 53716
Dane County (308) 260-6000
AMY L GROFF DO
Family Medicine
1821 S STOUGHTON RD
MADISON, WI 53716
Dane County (608) 260-6000

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 Yingyu Gao's NPI number?

The NPI number for Yingyu Gao is 1003435058. It was assigned to this individual provider in the NPPES registry on April 10, 2020.

Where is Yingyu Gao located?

Yingyu Gao practices at 1821 S Stoughton Rd, Madison, WI 53716. The listed phone number is (608) 260-6000.

What is Yingyu Gao's specialty?

The primary specialty registered for this NPI is Allergy & Immunology with taxonomy code 207K00000X.

Is Yingyu Gao enrolled in Medicare?

Yes. Yingyu Gao 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 Yingyu Gao's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Yingyu Gao reassigns Medicare benefits to Dean Health Systems, Inc (Madison, 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 Yingyu Gao's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Yingyu Gao accept?

Health plans from Dean Health Plan list Yingyu Gao 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.

Is Yingyu Gao affiliated with any hospitals?

According to CMS data, Yingyu Gao is affiliated with Ssm Health St Mary's Hospital - Madison.

When was this NPI record last updated?

The NPPES record for Yingyu Gao was last updated on November 11, 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.