Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MACKINAC STRAITS HEALTH SYSTEM INC
NPI 1659536035
General Practice in Saint Ignace, MI

Q: What is Mackinac Straits Health System Inc's NPI number?

The NPI number for Mackinac Straits Health System Inc is 1659536035. It was assigned to this organization in the NPPES registry on July 24, 2008. The provider is doing business as Mackinac Straits Hospital and Health Center.

Q: What is Mackinac Straits Health System Inc's specialty?

The primary specialty registered for this NPI is General Practice with taxonomy code 208D00000X.

Active since July 24, 2008

1140 N STATE ST, SAINT IGNACE, MI 49781(906) 643-8585(906) 643-0373 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jul 13, 2026, Dec 10, 2024, May 3, 2021 (3 updates tracked since 2021).

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About Mackinac Straits Health System Inc NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MACKINAC STRAITS HEALTH SYSTEM INC (NPI 1659536035), doing business as Mackinac Straits Hospital And Health Center, is a healthcare organization registered as a general practice in Saint Ignace, Michigan and active in the NPI registry since July 2008. The organization lists Sonja Sprague, Credentialing, as its authorized official.

NPPES Registry Identity

NPI1659536035

Entity TypeOrganization

Primary Taxonomy208D00000X

Legal Business NameMACKINAC STRAITS HEALTH SYSTEM INC

Location Address1140 N STATE STSaint Ignace, MI 49781-1048

Mailing Address1140 N State StSaint Ignace, MI 49781-1013 · (906) 643-8585 · Fax (906) 643-0373

Phone(906) 643-8585

Fax(906) 643-0373

Organization SubpartNo

Authorized OfficialSonja SpragueCredentialing · (906) 643-0451

Enumeration DateJuly 24, 2008

Last NPPES UpdateJuly 13, 20263 updates tracked since enumeration

NPPES CertifiedJuly 13, 2026

✔ NPI 1659536035 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyGeneral PracticeAllopathic & Osteopathic Physicians

Taxonomy Code208D00000X

Definition

A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions. Source: National Uniform Claim Committee

Also ListedRegistered Nurse · Pain ManagementTaxonomy 163WP0000X

Also ListedEmergency MedicineTaxonomy 207P00000X

Also ListedNurse Anesthetist, Certified RegisteredTaxonomy 367500000X

1140 N STATE ST, Saint Ignace, MI 49781

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Other Names 1

Doing Business AsMackinac Straits Hospital And Health Center

Other Identifiers 1

Other700D90255MI · Blue Shield

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Buckeye Health Plan, Ambetter from Meridian, Ambetter Health and more.Insurance ›

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MACKINAC STRAITS HEALTH SYSTEM INC

Clinic/Center (Rural Health)