IndividualActive
William Zimmer, RSW
NPI 1386601078 · Social Worker · Charlotte, MI
William Zimmer, RSW is a Social Worker provider in Charlotte, MI (NPI 1386601078).
Provider details
- NPI number
- 1386601078
- Entity type
- Individual
- Primary specialty
- Social WorkerBehavioral Health & Social Service Providers
- Credential
- RSW
- Sex
- Male
- License
- 6801063132 (MI)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
551 Courthouse Dr
Charlotte, MI 48813-1054
Phone: (517) 543-5100
Fax: (517) 346-8291
Street-level locationGet directions
Mailing address
812 E Jolly Rd
Lansing, MI 48910-6818
Registry dates
- Enumerated
- 2006-04-27
- Last updated
- 2007-07-08
Frequently asked questions
- What is William Zimmer's NPI number?
- William Zimmer's National Provider Identifier (NPI) is 1386601078, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Zimmer's specialty?
- William Zimmer is listed in the NPPES registry with a primary specialty of Social Worker (Behavioral Health & Social Service Providers).
- Where is William Zimmer located?
- William Zimmer's practice location on file with NPPES is 551 Courthouse Dr, Charlotte, MI 48813-1054.
- What is William Zimmer's phone number?
- The practice phone number listed in the NPPES registry for William Zimmer is (517) 543-5100.
- Is William Zimmer's NPI active?
- Yes — William Zimmer's NPI (1386601078) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.