DR. GERTRUDE YINGYU LI M.D.
NPI 1932306404
Orthopaedic Surgery in Ann Arbor, MI
About Dr. Gertrude Yingyu Li M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. GERTRUDE YINGYU LI M.D. (NPI 1932306404) is an individual orthopaedic surgery provider in Ann Arbor, Michigan, licensed in Michigan (4301099111) and active in the NPI registry since June 2007. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 1
Accepted 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. Gertrude Yingyu Li M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Gertrude Li reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Ann Arbor, MI 48105
- Reassigned Medicare billing, Michigan enrollment
- 48 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 48109 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
ANN ARBOR, MI 48109
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 Gertrude Li's NPI number?
The NPI number for Gertrude Li is 1932306404. It was assigned to this individual provider in the NPPES registry on June 28, 2007.
Where is Gertrude Li located?
Gertrude Li practices at 1500 E Medical Center Drive 5th Floor C.S. Mott Children's Hospital, Ann Arbor, MI 48109. The listed phone number is (734) 936-5780.
What is Gertrude Li's specialty?
The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.
Is Gertrude Li enrolled in Medicare?
Yes. Gertrude Li is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Gertrude Li's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gertrude Li reassigns Medicare benefits to Regents Of The University Of Michigan (Ann Arbor, MI). 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 Gertrude Li's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gertrude Li accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company and 1 other insurer list Gertrude Li 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 Gertrude Li was last updated on September 13, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.
# Dr. Gertrude Yingyu Li, M.D. · NPI 1932306404
Orthopaedic Surgery physician in Ann Arbor, Michigan. Individual provider, active in the CMS NPPES registry since June 28, 2007.
## Identity
- **NPI:** 1932306404 (Entity type: Individual)
- **Enumerated:** June 28, 2007
- **Primary specialty:** Orthopaedic Surgery · taxonomy 207X00000X
- **State license:** 4301099111 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 1500 E MEDICAL CENTER DRIVE, 5TH FLOOR C.S. MOTT CHILDREN'S HOSPITAL, Ann Arbor, MI 48109-4241
- **Phone:** (734) 936-5780
## 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:** Regents Of The University Of Michigan (NPI 1033524335, Ann Arbor, MI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 13, 2012
- **Other identifiers:** Medicare UPIN 52276B (NC)
---
Source: [NPI Profile](https://npiprofile.com/npi/1932306404) · Data from the CMS NPPES public registry.