William Granger, M.D.
NPI 1689982159 · Family Medicine Physician · Rockford, MI
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Granger, M.D. is a Family Medicine Physician provider in Rockford, MI (NPI 1689982159).
Provider details
- NPI number
- 1689982159
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 4301044858 (MI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 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
- 2010-09-18
- Last updated
- 2013-03-27
Frequently asked questions
- What is William Granger's NPI number?
- William Granger's National Provider Identifier (NPI) is 1689982159, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Granger's specialty?
- William Granger is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is William Granger located?
- William Granger's practice location on file with NPPES is 6050 Northland Dr, Rockford, MI 49341.
- What is William Granger's phone number?
- The practice phone number listed in the NPPES registry for William Granger is (616) 685-8350.
- Does William Granger accept Medicare?
- William Granger is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Granger's NPI active?
- Yes — William Granger's NPI (1689982159) is active in the NPPES registry as of the last update on 2013-03-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.