DR. WEIWEN CHEN MBBS, PHD
NPI 1619859733
Internal Medicine - Endocrinology, Diabetes & Metabolism in Milwaukee, WI
About Dr. Weiwen Chen Mbbs, Phd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. WEIWEN CHEN MBBS, PHD (NPI 1619859733) is an individual endocrinology, diabetes & metabolism provider in Milwaukee, Wisconsin, licensed in Wisconsin (85390-875) and active in the NPI registry since July 2025. She is enrolled in Medicare PECOS, is affiliated with St Josephs Community Hospital West Bend, and is a graduate of Other (2006).
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
Dr. Weiwen Chen Mbbs, Phd 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 Weiwen Chen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Milwaukee, WI 53226
- Reassigned Medicare billing, Wisconsin enrollment
- 3,983 clinicians in this Medicare group
Menomonee Falls, WI 53051
- Reassigned Medicare billing, Wisconsin enrollment
- 2,294 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.
Hospital Affiliations CMS Care Compare 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
St Josephs Community Hospital West Bend
Acute Care Hospitals · West Bend, WICommunity Memorial Hospital
Acute Care Hospitals · Menomonee Falls, WIHoly Family Memorial
Acute Care Hospitals · Manitowoc, WIFroedtert Memorial Lutheran Hospital
Acute Care Hospitals · Milwaukee, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 53226 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.
MILWAUKEE, WI 53226
MILWAUKEE, WI 53226
MILWAUKEE, WI 53226
MILWAUKEE, WI 53226
MILWAUKEE, WI 53226
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 Weiwen Chen's NPI number?
The NPI number for Weiwen Chen is 1619859733. It was assigned to this individual provider in the NPPES registry on July 21, 2025.
Where is Weiwen Chen located?
Weiwen Chen practices at 9200 W Wisconsin Ave, Milwaukee, WI 53226. The listed phone number is (414) 805-6550.
What is Weiwen Chen's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.
Is Weiwen Chen enrolled in Medicare?
Yes. Weiwen Chen 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 Weiwen Chen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Weiwen Chen reassigns Medicare benefits to 2 organizations: The Medical College Of Wisconsin, Inc. (Milwaukee, WI) and Froedtert & the Medical College Of Wisconsin Community Physicians, Inc. (Menomonee Falls, WI). 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 Weiwen Chen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Weiwen Chen accept?
Health plans from Anthem Blue Cross and Blue Shield, Aspirus Health Plan and HealthPartners list Weiwen Chen 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 Weiwen Chen affiliated with any hospitals?
According to CMS data, Weiwen Chen is affiliated with St Josephs Community Hospital West Bend, Community Memorial Hospital, Holy Family Memorial and Froedtert Memorial Lutheran Hospital.
When was this NPI record last updated?
The NPPES record for Weiwen Chen was last updated on October 2, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.
# Dr. Weiwen Chen, MBBS, PHD · NPI 1619859733
Endocrinology, Diabetes & Metabolism physician in Milwaukee, Wisconsin. Individual provider, active in the CMS NPPES registry since July 21, 2025.
## Identity
- **NPI:** 1619859733 (Entity type: Individual)
- **Enumerated:** July 21, 2025
- **Primary specialty:** Internal Medicine - Endocrinology, Diabetes & Metabolism · taxonomy 207RE0101X
- **State license:** 85390-875 (Wisconsin)
- **Sole proprietor:** No
## Practice location
- **Address:** 9200 W WISCONSIN AVE, Milwaukee, WI 53226-3522
- **Phone:** (414) 805-6550
## 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): The Medical College Of Wisconsin, Inc. (NPI 1699720086, Milwaukee, WI); Froedtert & the Medical College Of Wisconsin Community Physicians, Inc. (NPI 1568787448, Menomonee Falls, WI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2006
## Record status
- **NPPES last updated:** October 2, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1619859733) · Data from the CMS NPPES public registry.