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Advanced Care Medical Specialists, P.C.

Internal Medicine Physician in Munster, IN · enumerated 2015 · authorized official Alexander Stemer, Owner.

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

National Provider Identifier

1689030918

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Registry record

Entity type Organization (Type 2)
Legal business name Advanced Care Medical Specialists, P.C.
Practice address 10110 Donald S Powers Dr, Munster, IN, 46321
Phone (219) 934-5300
Fax (219) 934-5389
Enumeration date Dec 31, 2015
Last updated in NPPES Jul 10, 2019

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Alexander Stemer
Title Owner
Phone (219) 301-7264

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 is the NPI number for Advanced Care Medical Specialists, P.C.?
The NPI for Advanced Care Medical Specialists, P.C. is 1689030918, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for Advanced Care Medical Specialists, P.C.?
NPPES lists Alexander Stemer (Owner) as the authorized official for this organization.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-07-10.