Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Gary Mark Lazaroff, DMD
Endodontics in Providence, RI · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1720101959
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Registry record
Entity type Individual (Type 1)
Name Dr. Gary Mark Lazaroff
Credential DMD
Sex Male
Practice address 257 Wayland Avenue, Providence, RI, 02906
Phone (401) 272-1380
Fax (401) 272-1387
Enumeration date Apr 10, 2007
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees.
About the DMD 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
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.
What specialty is Gary Lazaroff?
Gary Lazaroff is registered in NPPES with the primary taxonomy of Endodontics. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.