LEI YAO MD
NPI 1477646859
Anesthesiology in Marshfield, WI
About Lei Yao Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
LEI YAO MD (NPI 1477646859) is an individual anesthesiology provider in Marshfield, Wisconsin, licensed in Wisconsin (42873) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS, is affiliated with Southern Ohio Medical Center, and maintains a secondary practice location in Lafayette.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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 and accepts Medicare assignment
Lei Yao 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.
Medicare Billing Reassignments
7Medicare enrollment records show Lei Yao reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Marshfield, WI 54449
- Reassigned Medicare billing, Wisconsin enrollment
- 2,540 clinicians in this Medicare group
Marshfield, WI 54449
- Reassigned Medicare billing, Wisconsin enrollment
- 2,476 clinicians in this Medicare group
Fond Du Lac, WI 54935
- Reassigned Medicare billing, Wisconsin enrollment
- 606 clinicians in this Medicare group
Monroe, WI 53566
- Reassigned Medicare billing, Wisconsin enrollment
- 376 clinicians in this Medicare group
Muskegon, MI 49445
- Reassigned Medicare billing, Michigan enrollment
- 2,446 clinicians in this Medicare group
Portsmouth, OH 45662
- Reassigned Medicare billing, Ohio enrollment
- 549 clinicians in this Medicare group
Stockbridge, GA 30281
- Reassigned Medicare billing, Georgia enrollment
- 713 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 2
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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Southern Ohio Medical Center
Acute Care Hospitals · Portsmouth, OHMarshfield Medical Center
Acute Care Hospitals · Marshfield, WIMedicare 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.
MARSHFIELD, WI 54449
MARSHFIELD, WI 54449
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 Lei Yao's NPI number?
The NPI number for Lei Yao is 1477646859. It was assigned to this individual provider in the NPPES registry on September 30, 2006.
Where is Lei Yao located?
Lei Yao practices at 1000 N Oak Ave, Marshfield, WI 54449. The listed phone number is (715) 387-7179.
What is Lei Yao's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Lei Yao enrolled in Medicare?
Yes. Lei Yao 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 Lei Yao's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Lei Yao reassigns Medicare benefits to 7 organizations: Marshfield Clinic Inc (Marshfield, WI), Mchs Hospitals Inc (Marshfield, WI), Agnesian Healthcare Inc (Fond Du Lac, WI), The Monroe Clinic, Inc. (Monroe, WI), Spectrum Health Primary Care Partners (Muskegon, MI) and 2 more organizations, listed in the Medicare section above. 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 Lei Yao's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Lei Yao accept?
Health plans from CareSource and Sanford Health Plan list Lei Yao 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 Lei Yao affiliated with any hospitals?
According to CMS data, Lei Yao is affiliated with Southern Ohio Medical Center and Marshfield Medical Center.
When was this NPI record last updated?
The NPPES record for Lei Yao was last updated on March 13, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.
# Lei Yao, MD · NPI 1477646859
Anesthesiology physician in Marshfield, Wisconsin. Individual provider, active in the CMS NPPES registry since September 30, 2006.
## Identity
- **NPI:** 1477646859 (Entity type: Individual)
- **Enumerated:** September 30, 2006
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 42873 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 1000 N OAK AVE, Marshfield, WI 54449
- **Phone:** (715) 387-7179
## 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:** 7 organizations under Medicare reassignment (form CMS-855R): Marshfield Clinic Inc (NPI 1952347981, Marshfield, WI); Mchs Hospitals Inc (NPI 1093221434, Marshfield, WI); Agnesian Healthcare Inc (NPI 1356476543, Fond Du Lac, WI); The Monroe Clinic, Inc. (NPI 1386720548, Monroe, WI); Spectrum Health Primary Care Partners (NPI 1386194538, Muskegon, MI); and 2 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1982
## Record status
- **NPPES last updated:** March 13, 2025
- **Other identifiers:** Medicaid 34209300 (WI)
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Source: [NPI Profile](https://npiprofile.com/npi/1477646859) · Data from the CMS NPPES public registry.