Werner Hollstein, MD
NPI 1649248998 · Family Medicine Physician · Saint Johns, MI
Werner Hollstein, MD is a Family Medicine Physician provider in Saint Johns, MI (NPI 1649248998).
Provider details
- NPI number
- 1649248998
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 4301037559 (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
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
Mailing address
Registry dates
- Enumerated
- 2006-03-11
- Last updated
- 2015-02-19
Frequently asked questions
- What is Werner Hollstein's NPI number?
- Werner Hollstein's National Provider Identifier (NPI) is 1649248998, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Werner Hollstein's specialty?
- Werner Hollstein is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Werner Hollstein located?
- Werner Hollstein's practice location on file with NPPES is 901 S Oakland St Ste 201, Saint Johns, MI 48879-2200.
- What is Werner Hollstein's phone number?
- The practice phone number listed in the NPPES registry for Werner Hollstein is (989) 224-2338.
- Is Werner Hollstein's NPI active?
- Yes — Werner Hollstein's NPI (1649248998) is active in the NPPES registry as of the last update on 2015-02-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.