NPI Portal NPI Lookup & Verification

Ms. Frances Peninnah Hack

Ms. Frances Peninnah Hack is a Clinical Social Worker provider (Social Worker) practicing in Florence, MA, registered in the NPPES registry with NPI 1104082338 since 2008.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI 1104082338
Entity type Individual (Type 1)
Name Ms. Frances Peninnah Hack
Sex Female
Practice address Florence, MA, 01062
Phone 4135843494
Enumeration date 2008-08-07
Last updated in NPPES 2008-08-07

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

Taxonomy & licenses

Taxonomy code Specialty Primary License State
1041C0700X Clinical Social Worker Primary 1023839 MA
Copy-ready billing details
Provider: Frances Hack
NPI: 1104082338
Taxonomy: 1041C0700X (Clinical Social Worker)
Address: Florence, MA, 01062

Other providers at this practice address

NPI Name Type Specialty Location
1215003983 Robert Chabot Individual Clinical Social Worker Florence, MA

Verify this record

Cross-check NPI 1104082338 against the authoritative CMS record: view Ms. Frances Peninnah Hack 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 Frances Hack?
Frances Hack is registered in NPPES with the primary taxonomy of Clinical Social Worker. 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 2008-08-07.