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Robert J. Dunning D.D.S., P.C.

General Practice Dentistry in Amsterdam, NY · enumerated 2005 · authorized official Thaddeus Marciniszyn, President.

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

National Provider Identifier

1134116395

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Registry record

Entity type Organization (Type 2)
Legal business name Robert J. Dunning D.D.S., P.C.
Practice address 191 Guy Park Ave, Amsterdam, NY, 12010
Phone (518) 842-3220
Fax (518) 843-0830
Enumeration date Oct 3, 2005
Last updated in NPPES Aug 22, 2020

Taxonomy & classification

1223G0001X General Practice Dentistry Dental Providers Primary

Authorized official

Name Thaddeus Marciniszyn
Title President
Phone (518) 842-3220

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 current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2020-08-22. Verify at npiregistry.cms.hhs.gov.
Where is Robert J. Dunning D.D.S., P.C. located?
The practice location on file with NPPES is in Amsterdam, NY.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-22.