Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Marc E Arens, DO
Pediatrics Physician in Troy, MI · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1649379710
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Registry record
Entity type Individual (Type 1)
Name Dr. Marc E Arens
Credential DO
Sex Male
Practice address 2100 W Big Beaver Rd, Ste#110, Troy, MI, 48084
Phone (248) 816-1300
Fax (248) 816-0088
Enumeration date Sep 22, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
208000000X Pediatrics Physician Allopathic & Osteopathic Physicians · License 5101015255 (MI) Primary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD.
About the DO credential
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.
Frequently asked questions
What specialty is Marc Arens?
Marc Arens is registered in NPPES with the primary taxonomy of Pediatrics Physician. 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.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.