Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Peter John Koubsky, DDS

Dentist in Astoria, NY · enumerated 2008 · practices at Gdp Optical Inc.

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

National Provider Identifier

1659538817

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Registry record

Entity type Individual (Type 1)

Name Dr. Peter John Koubsky

Credential DDS

Sex Male

Practice address 2201 31st St, Astoria, NY, 11105

Phone (718) 278-6266

Enumeration date May 16, 2008

Last updated in NPPES May 16, 2008

Taxonomy & licenses

122300000X Dentist Dental Providers · License 035991 (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 1659538817 active?

Yes, as of the latest NPPES snapshot, NPI 1659538817 is active (record last updated 2008-05-16).

How do I verify Peter Koubsky's NPI record?

Cross-check NPI 1659538817 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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Thomas Niemczyk Dentist · Astoria, NY NPI 1396902797 Gdp Optical Inc Optometrist · Astoria, NY NPI 1366190340

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-05-16.