Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Sang I Pak, MD

Surgery Physician in Southampton, NY · enumerated 2006 · practices at University Hospital at Stony Brook.

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

National Provider Identifier

1689680019

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Sang I Pak

Credential MD

Sex Male

Practice address 240 Meeting House Lane, Surgical Specialties Office, Southampton, NY, 11968

Phone (631) 726-8717

Fax (631) 726-8720

Enumeration date Jul 31, 2006

Last updated in NPPES Feb 14, 2018

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License 208286 (NY) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
01925662	Medicaid	NY	-

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 1689680019 active?

Yes, as of the latest NPPES snapshot, NPI 1689680019 is active (record last updated 2018-02-14).

How do I verify Sang Pak's NPI record?

Cross-check NPI 1689680019 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

Browse all →

Carol Lunt Obstetrics & Gynecology Nurse Practitioner · Southhampton, NY NPI 1316052244 University Hospital at Stony Brook General Acute Care Hospital · Southampton, NY NPI 1033224704 Sara Nardi Physician Assistant · Southampton, NY NPI 1053500579 Andrey Moiseyenko Student in an Organized Health Care Education/Training Program · Southampton, NY NPI 1154066074

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-02-14.