Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Carl M. Karoub, M.D., P.C.

Internal Medicine Physician in Royal Oak, MI · enumerated 2008 · authorized official Carl Karoub, Owner/Physician.

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

National Provider Identifier

1497915680

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Registry record

Entity type Organization (Type 2)

Legal business name Carl M. Karoub, M.D., P.C.

Other name <Unavail>

Practice address 4045 W 13 Mile Rd, Suite A, Royal Oak, MI, 48073

Phone (248) 288-2160

Fax (248) 288-0783

Enumeration date Jun 11, 2008

Last updated in NPPES Jan 18, 2023

Taxonomy & classification

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 4301042923 (MI) Primary

Authorized official

Name Carl Karoub

Title Owner/Physician

Phone (248) 288-2160

Other identifiers

Identifier	Type	State	Issuer
4300210	Other	MI	AETNA
DP3243	Other	MI	RAILROAD MEDICARE
A76139	Other	MI	HAP

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

Where is Carl M. Karoub, M.D., P.C. located?

The practice location on file with NPPES is in Royal Oak, MI.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2023-01-18. Verify at npiregistry.cms.hhs.gov.

Providers at this address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-01-18.