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

Miss. Diahann M Overall

Individual provider Mental Health Counselor · NPI 1407054927

Miss. Diahann M Overall is a Mental Health Counselor in San Leandro, California. Practices as a sole proprietor. Registered with an NPI since 2007.

In the registry since
2007

Practice location Address checks out

2500 Fairmont Dr
San Leandro, CA 94578-1006
Phone: (510) 667-3000
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 number1407054927
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorYes
NPI enumeratedJuly 5, 2007
Last updated in NPPESJuly 8, 2007

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