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Dr. Mark Victor Valentinas, DDS

General Practice Dentistry in Naperville, IL · enumerated 2008.

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

National Provider Identifier

1205099454

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Registry record

Entity type Individual (Type 1)
Name Dr. Mark Victor Valentinas
Credential DDS
Sex Male
Practice address 1001 E Chicago Ave, #143, Naperville, IL, 60540
Phone (630) 369-0111
Fax (630) 369-0378
Enumeration date Jul 8, 2008
Last updated in NPPES Jul 8, 2008

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 019017898 (IL) Primary
DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS 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.

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Frequently asked questions

How do I verify Mark Valentinas's NPI record?
Cross-check NPI 1205099454 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1205099454 active?
Yes, as of the latest NPPES snapshot, NPI 1205099454 is active (record last updated 2008-07-08).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-07-08.