Mark Lum Psychological Services
Clinical - Psychology Clinic
1801 E Heim Ave, Suite 204, Orange
California, 92865-3020
714-282-9713 714-282-8016
Maps & DirectionsMark Lum Psychological Services is a Clinical - Psychology Clinic in Orange, California. It is located at 1801 E Heim Ave, Suite 204, Orange, CA and its contact number is 714-282-9713. The authorized person for Mark Lum Psychological Services is Dr. Mark Stephen Lum
who is Licensed Psychologist of the clinic and his/her contact number is 949-713-9846. The primary license number for Mark Lum Psychological Services is PSY13344 (Clinical) in California.
Mark Lum Psychological Services Clinic has mental health professionals specialized in the diagnosis and psychological treatment of mental, behavioral and emotional illnesses, including obsessive-compulsive disorder (OCD). Psychologists main focus is on diagnosing and treating mental, emotional, and behavioral disorders. Some of the common disorders that psychologists can treat are learning disabilities, substance abuse, depression, anxiety, and eating disorders.
Complete Clinic Profile:
Mark Lum Psychological Services Clinic speciality, address, contact phone number and fax are as below.
Patients can call on the below given phone number for appointments.
| Name: | Mark Lum Psychological Services |
| Specialization: | Clinical Psychology |
| Clinic Address: | 1801 E Heim Ave, Suite 204, Orange,
California, 92865-3020 |
| Phone: | 714-282-9713 |
| Fax: | 714-282-8016 |
Authorized/Official Person Profile:
Officially authorized person to contact for any management issues or complaints for this clinic are as below. Person's position and contact details are also mentioned below.
| Name: | Dr. Mark Stephen Lum |
| Position: | Licensed Psychologist |
| Contact Number: | 949-713-9846 |
Professional Identification Codes:
NPI number stands for National Provider Identifier which is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS).
NPI details for Mark Lum Psychological Services clinic are as mentioned below.
| NPI Number: | 1992986616 |
| NPI Enumeration Date: | 21 Nov, 2007 |
| NPI Last Update On: | 21 Nov, 2007 |
Medical Licenses:
Organizations can have one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Mark Lum Psychological Services are as mentioned below.
| Specialization | License Number | State | Status | |
| Clinical | PSY13344 | California | Primary | |
Business Mailing Address:
Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned address.
| Address: | Mark Lum Psychological Services
1801 E Heim Ave, Suite 204
Orange, California |
| Zip: | 92865-3020 |
| Phone Number: | 714-282-9713 |
| Fax Number: | 714-282-8016 |
Patients can reach Mark Lum Psychological Services at
1801 E Heim Ave, Suite 204, Orange, California or can
call to book an appointment on 714-282-9713.
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Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 13 October, 2025.