Dr. Sidney F Jack, DDS

Dr. Sidney F Jack is a General Practice Dentistry provider (Dentist) practicing in Hamburg, NY, registered in the NPPES registry with NPI 1720180938 since 2006. The credential DDS stands for Doctor of Dental Surgery.

✓ Active NPI ✓ Valid NPI checksum

NPI	1720180938
Entity type	Individual (Type 1)
Name	Dr. Sidney F Jack
Credential	DDS
Sex	Male
Practice address	5877 S PARK AVE, Hamburg, NY, 14075
Phone	7166483350
Enumeration date	2006-09-01
Last updated in NPPES	2007-07-08

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
1223G0001X	General Practice Dentistry	Primary	032229	NY

DDS — Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential

Copy-ready billing details

Provider: Sidney Jack, DDS
NPI: 1720180938
Taxonomy: 1223G0001X (General Practice Dentistry)
Address: 5877 S PARK AVE, Hamburg, NY, 14075

Verify this record

Cross-check NPI 1720180938 against the authoritative CMS record: view Dr. Sidney F Jack 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

What specialty is Sidney Jack?

Sidney Jack 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.

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.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.