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Dr. Mark Knoll

Orthodontics and Dentofacial Orthopedics Dentistry in Bellmore, NY · enumerated 2006 · practices at South Shore Smiles Orthodontics.

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

National Provider Identifier

1750339735

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Registry record

Entity type Individual (Type 1)
Name Dr. Mark Knoll
Sex Male
Practice address 2655 Merrick Rd, Bellmore, NY, 11710
Phone (516) 783-1121
Enumeration date May 4, 2006
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

1223X0400X Orthodontics and Dentofacial Orthopedics Dentistry Dental Providers · License 039496 (NY) Primary

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

Where does Mark Knoll practice?
The practice location on file with NPPES is in Bellmore, NY. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Mark Knoll?
The National Provider Identifier (NPI) for Mark Knoll is 1750339735, a Type 1 (individual) record in the CMS NPPES registry.

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