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

Mark Lum Psychological Services

Organization Clinical Psychologist · NPI 1992986616

Mark Lum Psychological Services is a Clinical Psychologist in Orange, California. Licensed in California. Registered with an NPI since 2007.

Licensed in
CA
In the registry since
2007

Practice location Address checks out

1801 E Heim Ave Ste 204
Orange, CA 92865-3020
Phone: (714) 282-9713
Fax: (714) 282-8016
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Clinical Psychologist (primary) Taxonomy 103TC0700X · Licence PSY13344 (CA)

Record details

NPI number1992986616
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Mark Lum — Licensed Psychologist · (949) 713-9846
NPI enumeratedNovember 21, 2007
Last updated in NPPESNovember 21, 2007
Mailing address1801 E Heim Ave, Suite 204, Orange, CA 92865-3020

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