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Data from the NPPES registry. May not reflect recent changes — verify at nppes.cms.hhs.gov.

MATTHEW THOMAS HENNESSY, PSYD

Active

MATTHEW THOMAS HENNESSY, PSYD is a Geriatric Psychologist healthcare provider located in ATASCADERO, California. NPI 1336191576 is currently active in the NPPES registry. Verify at CMS.

Geriatric Psychologist · ATASCADERO, CA

Registration Details

NPI Number
1336191576
Provider Type
Individual
Gender
Male
NPI Issued
May 16, 2006 (20.22347480858 yrs)
Last Updated
Sep 11, 2025
Licenses
PSY17421 (CA)
PSY17421 (CA)
PSY17421 (CA)
PSY17421 (CA)
PSY17421 (CA)

Practice Information

Address
10333 EL CAMINO REAL
ATASCADERO, CA, 934237001
Browse CA providers · Browse ZIP 93423
Phone
8054682000
Fax
8054666011
Primary Specialty
Geriatric Psychologist
103TP2701X
Additional Specialty
Clinical Psychologist
Additional Specialty
Counseling Psychologist
Additional Specialty
Forensic Psychologist
Additional Specialty
Psychologist

Other Geriatric Psychologist Providers in ATASCADERO, CA

Name Credential NPI
SHARON DIANNE WALKER PHD 1922042746
DOUGLAS LEE BURTON PHD 1699793364
Data sourced from the NPPES National Provider Identifier registry. This information is for informational purposes only and is not a substitute for verifying credentials with the appropriate licensing authority. For official verification, use the NPPES NPI Registry or the relevant state medical board.