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DR. MARK STEPHEN LUM PSY.D.
NPI 1083648752
Psychologist - Clinical in Orange, CA

Active since July 10, 2006
1801 E HEIM AVE, SUITE 204, ORANGE, CA 92865(714) 282-9713(714) 282-8016 Get Directions Write a Review

NPPES record last updated: September 20, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Mark Stephen Lum Psy.d. NPPES

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

DR. MARK STEPHEN LUM PSY.D. (NPI 1083648752) is an individual clinical provider in Orange, California, licensed in California (PSY13344) and active in the NPI registry since July 2006.

NPPES Registry Identity

NPI1083648752
Entity TypeIndividualMale
Primary Taxonomy103TC0700X
Provider Legal NameDR. MARK STEPHEN LUMCredential: PSY.D.
Location Address1801 E HEIM AVE, SUITE 204Orange, CA 92865-3020
Mailing AddressPo Box 80736Rancho Santa Margarita, CA 92688-0736 · (949) 713-9846 · Fax (949) 713-9846
Phone(714) 282-9713
Fax(714) 282-8016
Sole ProprietorYes
Enumeration DateJuly 10, 2006
Last NPPES UpdateSeptember 20, 2007
✔ NPI 1083648752 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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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. THOMAS C LESTER M.D.
Psychiatry & Neurology (Psychiatry)
1801 E HEIM AVE, SUITE 204
ORANGE, CA 92865
Orange County (714) 404-7935
MARK LUM PSYCHOLOGICAL SERVICES
Psychologist (Clinical)
1801 E HEIM AVE, SUITE 204
ORANGE, CA 92865
Orange County (714) 282-9713

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's NPI number?

The NPI number for Mark Lum is 1083648752. It was assigned to this individual provider in the NPPES registry on July 10, 2006.

Where is Mark Lum located?

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

What is Mark Lum'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 was last updated on September 20, 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.