Joanne Grzeszak, DO
NPI 1124083670 · Family Medicine Physician · Grand Rapids, MI
Enrolled with Medicare as Practitioner - General Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joanne Grzeszak, DO is a Family Medicine Physician provider in Grand Rapids, MI (NPI 1124083670).
Provider details
- NPI number
- 1124083670
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
- License
- 5101007147 (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
- 2006-04-19
- Last updated
- 2018-10-01
Frequently asked questions
- What is Joanne Grzeszak's NPI number?
- Joanne Grzeszak's National Provider Identifier (NPI) is 1124083670, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joanne Grzeszak's specialty?
- Joanne Grzeszak is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Joanne Grzeszak located?
- Joanne Grzeszak's practice location on file with NPPES is 806 Alger St Se, Grand Rapids, MI 49507-3803.
- What is Joanne Grzeszak's phone number?
- The practice phone number listed in the NPPES registry for Joanne Grzeszak is (616) 252-7200.
- Does Joanne Grzeszak accept Medicare?
- Joanne Grzeszak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joanne Grzeszak's NPI active?
- Yes — Joanne Grzeszak's NPI (1124083670) is active in the NPPES registry as of the last update on 2018-10-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.