Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Mary Ann Hession, PHD

Individual provider Clinical Child & Adolescent Psychologist · NPI 1598859779

Mary Ann Hession, PHD is a Clinical Child & Adolescent Psychologist in Los Angeles, California. Licensed in California. Registered with an NPI since 2006.

Licensed in
CA
In the registry since
2006
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

4650 W Sunset Blvd Ms# 53
Los Angeles, CA 90027-6062
Phone: (323) 669-2350
Fax: (323) 671-1502
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Child & Adolescent Psychologist (primary) Taxonomy 103TC2200X · Licence PSY12940 (CA)

Record details

NPI number1598859779
Entity typeIndividual (Type 1)
GenderFemale
Credentials PHD
Sole proprietorNo
NPI enumeratedOctober 3, 2006
Last updated in NPPESJuly 8, 2007

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