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MARK LUM PSYCHOLOGICAL SERVICES
NPI 1992986616
Psychologist - Clinical in Orange, CA

Active since November 21, 2007
1801 E HEIM AVE, SUITE 204, ORANGE, CA 92865(714) 282-9713(714) 282-8016 Get Directions Write a Review

NPPES record last updated: November 21, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Mark Lum Psychological Services NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARK LUM PSYCHOLOGICAL SERVICES (NPI 1992986616) is a healthcare organization registered as a clinical in Orange, California and active in the NPI registry since November 2007. The organization lists Mark Stephen Lum, Licensed Psychologist, as its authorized official.

NPPES Registry Identity

NPI1992986616
Entity TypeOrganization
Primary Taxonomy103TC0700X
Legal Business NameMARK LUM PSYCHOLOGICAL SERVICES
Location Address1801 E HEIM AVE, SUITE 204Orange, CA 92865-3020
Mailing Address1801 E Heim Ave, Suite 204Orange, CA 92865-3020 · (714) 282-9713 · Fax (714) 282-8016
Phone(714) 282-9713
Fax(714) 282-8016
Organization SubpartNo
Authorized OfficialMark Stephen LumLicensed Psychologist · (949) 713-9846
Enumeration DateNovember 21, 2007
✔ NPI 1992986616 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code103TC0700X
License✔ Licensed in CA · PSY13344
Definition
A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.
1801 E HEIM AVE, Orange, CA 92865
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Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. MARK STEPHEN LUM PSY.D.
Psychologist (Clinical)
1801 E HEIM AVE, SUITE 204
ORANGE, CA 92865
Orange County (714) 282-9713
DR. THOMAS C LESTER M.D.
Psychiatry & Neurology (Psychiatry)
1801 E HEIM AVE, SUITE 204
ORANGE, CA 92865
Orange County (714) 404-7935

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mark Lum Psychological Services's NPI number?

The NPI number for Mark Lum Psychological Services is 1992986616. It was assigned to this organization in the NPPES registry on November 21, 2007.

Where is Mark Lum Psychological Services located?

Mark Lum Psychological Services is located at 1801 E Heim Ave Suite 204, Orange, CA 92865. The listed phone number is (714) 282-9713.

What is Mark Lum Psychological Services's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

When was this NPI record last updated?

The NPPES record for Mark Lum Psychological Services was last updated on November 21, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.