William Weitzel, MD
NPI 1265514186 · Nephrology Physician · Ann Arbor, MI
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Weitzel, MD is a Nephrology Physician provider in Ann Arbor, MI (NPI 1265514186).
Provider details
- NPI number
- 1265514186
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4301052795 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-19
- Last updated
- 2012-04-04
Frequently asked questions
- What is William Weitzel's NPI number?
- William Weitzel's National Provider Identifier (NPI) is 1265514186, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Weitzel's specialty?
- William Weitzel is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is William Weitzel located?
- William Weitzel's practice location on file with NPPES is 1500 East Medical Center Dr, Ann Arbor, MI 48109-5364.
- What is William Weitzel's phone number?
- The practice phone number listed in the NPPES registry for William Weitzel is (734) 936-5548.
- Does William Weitzel accept Medicare?
- William Weitzel is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Weitzel's NPI active?
- Yes — William Weitzel's NPI (1265514186) is active in the NPPES registry as of the last update on 2012-04-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.