NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Gerald B Kooistra, DC

Chiropractor in Wyoming, MI · enumerated 2005 · practices at Kooistra Chiropractic Clinic Pllc.

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

National Provider Identifier

1881680403

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Registry record

Entity type Individual (Type 1)
Name Gerald B Kooistra
Credential DC
Sex Male
Practice address Wyoming, MI, 49519
Phone (616) 532-2518
Fax (616) 532-2696
Enumeration date Sep 20, 2005
Last updated in NPPES Sep 11, 2009

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License GK001962 (MI) Primary
DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

Other identifiers

Identifier Type State Issuer
1005146 Medicaid MI -
950D150290 Other - BCBS

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

Is NPI 1881680403 active?
Yes, as of the latest NPPES snapshot, NPI 1881680403 is active (record last updated 2009-09-11).
How do I verify Gerald Kooistra's NPI record?
Cross-check NPI 1881680403 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-09-11.