Mark Hallahan is a Mental Health Counselor based in El Cajon, CA and is specialized in Mental Health. Mark Hallahan practices in El Cajon, CA. The NPI Number for Mark Hallahan is 1780995779 and holds a License No. (California).
The current practice location address for Mark Hallahan is 1664 Broadway, El Cajon, CA and can be reached out via phone at 619-579-8658.
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