Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Nicholas A Derensis, D.D.S.

General Practice Dentistry in Norwich, NY · enumerated 2012 · practices at Progressive Dental of Norwich, Pllc.

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

National Provider Identifier

1386906253

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Registry record

Entity type Individual (Type 1)

Name Dr. Nicholas A Derensis

Credential D.D.S.

Sex Male

Practice address 101 S Broad St, Norwich, NY, 13815

Phone (607) 334-8666

Fax (607) 334-6662

Enumeration date Jun 15, 2012

Last updated in NPPES Jun 15, 2012

Taxonomy & licenses

1223G0001X General Practice Dentistry Dental Providers · License 033207-1 (NY) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1386906253 active?

Yes, as of the latest NPPES snapshot, NPI 1386906253 is active (record last updated 2012-06-15).

How do I verify Nicholas Derensis's NPI record?

Cross-check NPI 1386906253 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Progressive Dental of Norwich, Pllc General Practice Dentistry · Norwich, NY NPI 1962417402

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-06-15.