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

Dr. Ronald Jay Malloy, PHD

Individual provider Psychologist · NPI 1225139579

Dr. Ronald Jay Malloy, PHD is a Psychologist in South Pasadena, 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.

See every abbreviation used in this directory →

Practice location Address checks out

1138 Fremont Ave Ste 203
South Pasadena, CA 91030
Phone: (626) 403-8389
Fax: (626) 799-0033
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychologist (primary) Taxonomy 103T00000X · Licence PSY5561 (CA)

Record details

NPI number1225139579
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD
Sole proprietorNo
NPI enumeratedSeptember 26, 2006
Last updated in NPPESJuly 8, 2007
Mailing address1138 Fremont Ave, Suite 203, South Pasadena, CA 91030

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