Mark Stephen Lum is a Clinical Psychologist based in Rancho Santa Margarita, CA and is specialized in Clinical. Mark Stephen Lum practices in Orange, CA and has the professional credentials of PSYD. The NPI Number for Mark Stephen Lum is 1083648752 and holds a License No. PSY13344 (California).
The current practice location address for Mark Stephen Lum is 1801 E Heim Ave, Orange, CA and can be reached out via phone at 714-282-9713 and via fax at 714-282-8016.
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