Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mr. Jeffrey Ogle Duprey, MSW, LICSW, LAC

Clinical Social Worker in Leeds, MA · enumerated 2009.

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

National Provider Identifier

1164759783

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Mr. Jeffrey Ogle Duprey

Credential MSW, LICSW, LAC

Sex Male

Practice address Leeds, MA, 01053

Phone (413) 584-4040

Fax (413) 582-3137

Enumeration date Nov 4, 2009

Last updated in NPPES May 19, 2023

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 259 (KS) Secondary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 117549 (MA) Primary

LAC · Licensed Acupuncturist: A practitioner licensed to perform acupuncture. About the LAC 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

Where does Jeffrey Duprey practice?

The practice location on file with NPPES is in Leeds, MA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Jeffrey Duprey?

The National Provider Identifier (NPI) for Jeffrey Duprey is 1164759783, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-05-19.