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Dr. Jack Douglas Dehaan, MD

Emergency Medicine Physician in Grand Blanc, MI · enumerated 2021.

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

National Provider Identifier

1851975429

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Registry record

Entity type Individual (Type 1)
Name Dr. Jack Douglas Dehaan
Credential MD
Sex Male
Practice address 1 Genesys Pkwy, Grand Blanc, MI, 48439
Phone (810) 606-6372
Fax (810) 606-5990
Enumeration date May 10, 2021
Last updated in NPPES Sep 3, 2025

Taxonomy & licenses

207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 4351048260 (MI) Secondary
207P00000X Emergency Medicine Physician Allopathic & Osteopathic Physicians · License 01096929A (IN) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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

Where does Jack Dehaan practice?
The practice location on file with NPPES is in Grand Blanc, MI. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Jack Dehaan?
The National Provider Identifier (NPI) for Jack Dehaan is 1851975429, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-03.