Mark Renzi, DMD

Mark Renzi is a General Practice Dentistry provider (Dentist) practicing in Newtown, CT, registered in the NPPES registry with NPI 1497813521 since 2006. The credential DMD stands for Doctor of Medicine in Dentistry.

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NPI	1497813521
Entity type	Individual (Type 1)
Name	Mark Renzi
Credential	DMD
Sex	Male
Practice address	11 CHURCHILL RD, Newtown, CT, 06470
Phone	2037485717
Enumeration date	2006-12-04
Last updated in NPPES	2016-03-23

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
1223G0001X	General Practice Dentistry	Primary	8239	CT

DMD — Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees. About the DMD credential

Copy-ready billing details

Provider: Mark Renzi, DMD
NPI: 1497813521
Taxonomy: 1223G0001X (General Practice Dentistry)
Address: 11 CHURCHILL RD, Newtown, CT, 06470

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1902964034	Aaron Gilman	Individual	Orthodontics and Dentofacial Orthopedics Dentistry	Newtown, CT
1972661098	William Labella	Individual	General Practice Dentistry	Newtown, CT
1316005432	David Kessler	Individual	General Practice Dentistry	Newtown, CT
1225196348	Nicholas Boccarossa	Individual	General Practice Dentistry	Newtown, CT

Verify this record

Cross-check NPI 1497813521 against the authoritative CMS record: view Mark Renzi on the official NPPES registry .

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. Read the full guide or validate an NPI number.

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 Mark Renzi?

Mark Renzi is registered in NPPES with the primary taxonomy of General Practice Dentistry. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2016-03-23.