Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Mark Hallahan

Individual provider Mental Health Counselor · NPI 1780995779

Mark Hallahan is a Mental Health Counselor in El Cajon, California. Registered with an NPI since 2010.

In the registry since
2010

Practice location Address checks out

1664 Broadway Halcyon Ctr
El Cajon, CA 92021-5201
Phone: (619) 579-8658
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Mental Health Counselor (primary) Taxonomy 101YM0800X

Record details

NPI number1780995779
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedJune 24, 2010
Last updated in NPPESJune 24, 2010

Other providers in El Cajon