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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Harold Robert Mendelson, D.D.S.

General Practice Dentistry in Owings Mills, MD · enumerated 2007 · practices at Mendelson Family Dentistry, PA.

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

National Provider Identifier

1215066097

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Registry record

Entity type Individual (Type 1)
Name Dr. Harold Robert Mendelson
Credential D.D.S.
Sex Male
Practice address 11300 Reisterstown Rd, Owings Mills, MD, 21117
Fax (410) 356-8399
Enumeration date Mar 5, 2007
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 4350 (MD) 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

Is NPI 1215066097 active?
Yes, as of the latest NPPES snapshot, NPI 1215066097 is active (record last updated 2007-07-08).
How do I verify Harold Mendelson's NPI record?
Cross-check NPI 1215066097 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.