Marian Oleszkowicz, MD
NPI 1487600888 · Internal Medicine Physician · Grand Rapids, MI
Marian Oleszkowicz, MD is a Internal Medicine Physician provider in Grand Rapids, MI (NPI 1487600888).
Provider details
- NPI number
- 1487600888
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 4301050285 (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
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
- 2006-05-26
- Last updated
- 2022-03-02
- Certified
- 2022-03-02
Frequently asked questions
- What is Marian Oleszkowicz's NPI number?
- Marian Oleszkowicz's National Provider Identifier (NPI) is 1487600888, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marian Oleszkowicz's specialty?
- Marian Oleszkowicz is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Marian Oleszkowicz located?
- Marian Oleszkowicz's practice location on file with NPPES is 4069 Lake Dr Se, Grand Rapids, MI 49546-8816.
- What is Marian Oleszkowicz's phone number?
- The practice phone number listed in the NPPES registry for Marian Oleszkowicz is (616) 267-7700.
- Is Marian Oleszkowicz's NPI active?
- Yes — Marian Oleszkowicz's NPI (1487600888) is active in the NPPES registry as of the last update on 2022-03-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.