IndividualActive
Gary Willershausen
NPI 1033529441 · Pharmacotherapy Pharmacist · Marysville, MI
Gary Willershausen is a Pharmacotherapy Pharmacist provider in Marysville, MI (NPI 1033529441).
Provider details
- NPI number
- 1033529441
- Entity type
- Individual
- Primary specialty
- Pharmacotherapy PharmacistPharmacy Service Providers
- Sex
- Male
- Sole proprietor
- No
- License
- 5302026972 (MI)
Specialties & taxonomies
Pharmacy Service Providers
Profile Score
Detailed profile(76/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
12 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
205 S Range Rd
Marysville, MI 48040-2605
Phone: (810) 388-9633
Fax: (810) 388-9665
Street-level locationGet directions
Mailing address
205 S Range Rd
Marysville, MI 48040-2605
Registry dates
- Enumerated
- 2014-05-07
- Last updated
- 2014-05-07
Frequently asked questions
- What is Gary Willershausen's NPI number?
- Gary Willershausen's National Provider Identifier (NPI) is 1033529441, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gary Willershausen's specialty?
- Gary Willershausen is listed in the NPPES registry with a primary specialty of Pharmacotherapy Pharmacist (Pharmacy Service Providers).
- Where is Gary Willershausen located?
- Gary Willershausen's practice location on file with NPPES is 205 S Range Rd, Marysville, MI 48040-2605.
- What is Gary Willershausen's phone number?
- The practice phone number listed in the NPPES registry for Gary Willershausen is (810) 388-9633.
- Is Gary Willershausen's NPI active?
- Yes — Gary Willershausen's NPI (1033529441) is active in the NPPES registry as of the last update on 2014-05-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.