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ALLEGAN INTERNAL MEDICINE, P. C
NPI 1508813114
Internal Medicine in Allegan, MI

Active since May 28, 2006
305 THOMAS ST, ALLEGAN, MI 49010(269) 673-2179(269) 673-6992 Get Directions Write a Review

NPPES record last updated: December 22, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Dec 22, 2025, Dec 9, 2025, Jan 7, 2025 (3 updates tracked since 2025).

About Allegan Internal Medicine, P. C NPPES

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

ALLEGAN INTERNAL MEDICINE, P. C (NPI 1508813114), doing business as Thomas Street Clinic, is a healthcare organization registered as an internal medicine in Allegan, Michigan and active in the NPI registry since May 2006. The organization lists Laurie L Hildebrand, Office Manager/billing, as its authorized official.

NPPES Registry Identity

NPI1508813114
Entity TypeOrganization
Primary Taxonomy207R00000X
Legal Business NameALLEGAN INTERNAL MEDICINE, P. C
Location Address305 THOMAS STAllegan, MI 49010-9158
Mailing Address305 Thomas StAllegan, MI 49010-9158 · (269) 673-2179 · Fax (269) 673-6992
Phone(269) 673-2179
Fax(269) 673-6992
Organization SubpartNo
Authorized OfficialLaurie L HildebrandOffice Manager/billing · (269) 673-2179
Enumeration DateMay 28, 2006
Last NPPES UpdateDecember 22, 20253 updates tracked since enumeration
NPPES CertifiedDecember 22, 2025
✔ NPI 1508813114 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
305 THOMAS ST, Allegan, MI 49010
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Other Names 2

Doing Business AsThomas Street Clinic
Former Legal Business NameAllegan Internal Medicine, P. C

Other Identifiers 1

Other110Z310760MI · Blue Cross Pin

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE 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 5

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

AIRLINK HOMECARE LLC
Durable Medical Equipment & Medical Supplies (Oxygen Equipment & Supplies)
305 THOMAS ST, SUITE B
ALLEGAN, MI 49010
Allegan County (877) 382-3715
AMY LYNN STEWARD F.N.P.
Nurse Practitioner (Family)
305 THOMAS ST
ALLEGAN, MI 49010
Allegan County (269) 673-2179
OPTIMUM HEALTH CLINIC, PC
Internal Medicine
305 THOMAS ST, SUITE B
ALLEGAN, MI 49010
Allegan County (269) 673-2179
WEST MICHIGAN VISITING PHYSICIANS, PLLC
Internal Medicine
305 THOMAS ST
ALLEGAN, MI 49010
Allegan County (269) 673-2179
NABIL NOUNA MD
Internal Medicine
305 THOMAS ST
ALLEGAN, MI 49010
Allegan County (269) 673-2179

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Allegan Internal Medicine, P. C's NPI number?

The NPI number for Allegan Internal Medicine, P. C is 1508813114. It was assigned to this organization in the NPPES registry on May 28, 2006. The provider is doing business as Thomas Street Clinic.

Where is Allegan Internal Medicine, P. C located?

Allegan Internal Medicine, P. C is located at 305 Thomas St, Allegan, MI 49010. The listed phone number is (269) 673-2179.

What is Allegan Internal Medicine, P. C's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

What insurance does Allegan Internal Medicine, P. C accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company list Allegan Internal Medicine, P. C as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Allegan Internal Medicine, P. C was last updated on December 22, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.