NPI Portal NPI Lookup & Verification

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

Ms. Joanne Casey Zullig, M.A., LMHC, LPC

Counselor in Mashpee, MA · enumerated 2010 · practices at Assessment and Treatment Associates, LLC.

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

National Provider Identifier

1992010342

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Registry record

Entity type Individual (Type 1)
Name Ms. Joanne Casey Zullig
Credential M.A., LMHC, LPC
Sex Female
Practice address Mashpee, MA, 02649
Phone (508) 477-5844
Fax (508) 477-9334
Enumeration date Aug 10, 2010
Last updated in NPPES Aug 10, 2010

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

Taxonomy & licenses

101Y00000X Counselor Behavioral Health & Social Service Providers · License 3035 (MA) Primary
LPC · Licensed Professional Counselor: A licensed mental-health counselor providing psychotherapy. About the LPC 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.

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Frequently asked questions

What is the NPI number for Joanne Zullig?
The National Provider Identifier (NPI) for Joanne Zullig is 1992010342, a Type 1 (individual) record in the CMS NPPES registry.
Where does Joanne Zullig practice?
The practice location on file with NPPES is in Mashpee, MA. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-08-10.