WILLIAM F WEITZEL MD
NPI 1265514186
Internal Medicine - Nephrology in Ann Arbor, MI
About William F Weitzel Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WILLIAM F WEITZEL MD (NPI 1265514186) is an individual nephrology provider in Ann Arbor, Michigan, licensed in Michigan (4301052795) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 3
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)
William F Weitzel Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show William Weitzel reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Ann Arbor, MI 48109
- Reassigned Medicare billing, Michigan enrollment
- 96 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
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 William Weitzel's NPI number?
The NPI number for William Weitzel is 1265514186. It was assigned to this individual provider in the NPPES registry on October 19, 2006.
Where is William Weitzel located?
William Weitzel practices at 1500 East Medical Center Dr 3rd Floor Taubman Ctr Recp C, Ann Arbor, MI 48109. The listed phone number is (734) 936-5548.
What is William Weitzel's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.
Is William Weitzel enrolled in Medicare?
Yes. William Weitzel is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for William Weitzel's services?
According to the CMS Revalidation Reassignment List (October 2026 release), William Weitzel 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 William Weitzel's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does William Weitzel 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 William Weitzel 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 William Weitzel was last updated on April 4, 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.
# William F Weitzel, MD · NPI 1265514186
Nephrology physician in Ann Arbor, Michigan. Individual provider, active in the CMS NPPES registry since October 19, 2006.
## Identity
- **NPI:** 1265514186 (Entity type: Individual)
- **Enumerated:** October 19, 2006
- **Primary specialty:** Internal Medicine - Nephrology · taxonomy 207RN0300X
- **State license:** 4301052795 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 1500 EAST MEDICAL CENTER DR, 3RD FLOOR TAUBMAN CTR RECP C, Ann Arbor, MI 48109-5364
- **Phone:** (734) 936-5548
## 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 1003848144, Ann Arbor, MI), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** April 4, 2012
- **Other identifiers:** Medicare ID-Type Unspecified 0N22260002 (MI); Medicare UPIN F60026 (MI); Medicaid 3446990 (MI)
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Source: [NPI Profile](https://npiprofile.com/npi/1265514186) · Data from the CMS NPPES public registry.