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

Theodore Charles Mackinnon I

Clinical Social Worker in Battle Creek, MI · enumerated 2023 · practices at Recovery Services Unlimited, Inc.

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

National Provider Identifier

1740056290

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Registry record

Entity type Individual (Type 1)

Name Theodore Charles Mackinnon I

Sex Male

Practice address Battle Creek, MI, 49015

Phone (269) 397-2234

Enumeration date Nov 27, 2023

Last updated in NPPES Nov 27, 2023

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

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 6851117533 (MI) Primary

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 specialty is Theodore Mackinnon?

Theodore Mackinnon is registered in NPPES with the primary taxonomy of Clinical Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-11-27.