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Joanne Marie Grzeszak Do PC

General Practice Physician in Grand Rapids, MI · enumerated 2008 · authorized official Joanne Grzeszak, Provider.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1619147493

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Registry record

Entity type Organization (Type 2)
Legal business name Joanne Marie Grzeszak Do PC
Practice address 806 Alger St Se, Grand Rapids, MI, 49507
Phone (616) 452-8923
Enumeration date Mar 7, 2008
Last updated in NPPES Jan 19, 2010

Taxonomy & classification

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License 00714 (MI) Secondary
208D00000X General Practice Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Joanne Grzeszak
Title Provider
Phone (616) 452-8923

Other identifiers

Identifier Type State Issuer
2812013 Medicaid MI -
54100135 Other MI BCBS
0154100134 Other - BCBSM

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What type of organization is Joanne Marie Grzeszak Do PC?
Joanne Marie Grzeszak Do PC is registered in NPPES as a General Practice Physician (its primary provider taxonomy).
What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-01-19.