NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Judith Hahn, MAT

Student in an Organized Health Care Education/Training Program in Lowell, MA · enumerated 2007 · practices at South Bay Mental Health Center.

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

National Provider Identifier

1689721102

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Ms. Judith Hahn
Credential MAT
Sex Female
Practice address 148 Warren St, Lowell, MA, 01852
Phone (978) 452-1736
Fax (978) 452-6625
Enumeration date Jan 5, 2007
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Primary

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 Judith Hahn?
The National Provider Identifier (NPI) for Judith Hahn is 1689721102, a Type 1 (individual) record in the CMS NPPES registry.
Where does Judith Hahn practice?
The practice location on file with NPPES is in Lowell, MA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.