Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Miriam Elizabeth Sullivan, PHD, LCSW

Clinical Social Worker in Haddonfield, NJ · enumerated 2022.

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

National Provider Identifier

1538816723

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Registry record

Entity type Individual (Type 1)

Name Dr. Miriam Elizabeth Sullivan

Credential PHD, LCSW

Sex Female

Practice address 124 Kings Hwy W, Haddonfield, NJ, 08033

Phone (609) 932-7120

Enumeration date Mar 7, 2022

Last updated in NPPES Mar 7, 2022

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 44SC05293700 (NJ) Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD 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 Miriam Sullivan practice?

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

What is the NPI number for Miriam Sullivan?

The National Provider Identifier (NPI) for Miriam Sullivan is 1538816723, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-03-07.