IndividualActive
Erik Tjolsen
NPI 1437792355 · Pharmacist · Onsted, MI
Erik Tjolsen is a Pharmacist provider in Onsted, MI (NPI 1437792355).
Provider details
- NPI number
- 1437792355
- Entity type
- Individual
- Primary specialty
- PharmacistPharmacy Service Providers
- Sex
- Male
- Sole proprietor
- Yes
- License
- 5302031070 (MI)
Specialties & taxonomies
Pharmacy Service Providers
Profile Score
Established profile(65/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 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
400 N Main St Ste C
Onsted, MI 49265-9204
Phone: (517) 467-7225
Street-level locationGet directions
Mailing address
400 N Main St
Onsted, MI 49265-9202
Registry dates
- Enumerated
- 2019-10-23
- Last updated
- 2023-11-27
Frequently asked questions
- What is Erik Tjolsen's NPI number?
- Erik Tjolsen's National Provider Identifier (NPI) is 1437792355, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Erik Tjolsen's specialty?
- Erik Tjolsen is listed in the NPPES registry with a primary specialty of Pharmacist (Pharmacy Service Providers).
- Where is Erik Tjolsen located?
- Erik Tjolsen's practice location on file with NPPES is 400 N Main St Ste C, Onsted, MI 49265-9204.
- What is Erik Tjolsen's phone number?
- The practice phone number listed in the NPPES registry for Erik Tjolsen is (517) 467-7225.
- Is Erik Tjolsen's NPI active?
- Yes — Erik Tjolsen's NPI (1437792355) is active in the NPPES registry as of the last update on 2023-11-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.