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

Dr. Joan Y Heffernan

Psychologist in Quincy, MA · enumerated 2012 · practices at Mary Anne Del Copolo DDS PC.

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

National Provider Identifier

1972856243

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Registry record

Entity type Individual (Type 1)
Name Dr. Joan Y Heffernan
Sex Female
Practice address Quincy, MA, 02169
Phone (781) 676-0000
Fax (781) 676-0067
Enumeration date Oct 23, 2012
Last updated in NPPES Oct 23, 2012

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

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers · License 9511 (MA) Primary
103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 9511 (MA) Secondary

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

Where does Joan Heffernan practice?
The practice location on file with NPPES is in Quincy, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Joan Heffernan?
The National Provider Identifier (NPI) for Joan Heffernan is 1972856243, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-10-23.