Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Theodore J. Vanderkooi, M.D.

Surgery Physician in Fremont, MI · enumerated 2006.

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

National Provider Identifier

1801849120

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Registry record

Entity type Individual (Type 1)

Name Theodore J. Vanderkooi

Credential M.D.

Sex Male

Practice address 230 W Oak St, Suite 201, Fremont, MI, 49412

Phone (231) 924-4200

Fax (616) 267-9046

Enumeration date May 18, 2006

Last updated in NPPES Jul 11, 2014

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 065627 (MI) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Theodore Vanderkooi?

The National Provider Identifier (NPI) for Theodore Vanderkooi is 1801849120, a Type 1 (individual) record in the CMS NPPES registry.

Where does Theodore Vanderkooi practice?

The practice location on file with NPPES is in Fremont, MI. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

David Langholz Cardiovascular Disease Physician · Fremont, MI NPI 1831180231 Brian Hood Orthopaedic Surgery Physician · Fremont, MI NPI 1023009453 Randall Ceton Family Medicine Physician · Fremont, MI NPI 1801846316 Richard Boss Family Medicine Physician · Fremont, MI NPI 1366492852 Carol Deweerd Family Medicine Physician · Fremont, MI NPI 1285685461 Donald Reinders Family Medicine Physician · Fremont, MI NPI 1083665707 Robert Clouse Family Medicine Physician · Fremont, MI NPI 1275585747 Christopher Hudson Family Medicine Physician · Fremont, MI NPI 1568414860

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-07-11.