NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

G.S.Chun Acupuncture, P.C.

Pain Clinic/Center in Stony Brook, NY · enumerated 2020 · authorized official Gyu Chun, Acupuncturist.

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

National Provider Identifier

1417543018

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name G.S.Chun Acupuncture, P.C.
Practice address 207 Hallock Rd Ste 209, Stony Brook, NY, 11790
Enumeration date Dec 17, 2020
Last updated in NPPES Sep 28, 2022

Taxonomy & classification

261QP3300X Pain Clinic/Center Ambulatory Health Care Facilities Primary

Authorized official

Name Gyu Chun
Title Acupuncturist

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

What is the NPI number for G.S.Chun Acupuncture, P.C.?
The NPI for G.S.Chun Acupuncture, P.C. is 1417543018, a Type 2 (organization) record in the CMS NPPES registry.
Who is the authorized official for G.S.Chun Acupuncture, P.C.?
NPPES lists Gyu Chun (Acupuncturist) as the authorized official for this organization.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-09-28.