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

Jeffrey Allan Zellner

Individual provider Specialist · NPI 1104020478

Jeffrey Allan Zellner is a Specialist in Castro Valley, California. Registered with an NPI since 2007.

In the registry since
2007

Practice location Address checks out

3553 Castro Valley Blvd Ste B
Castro Valley, CA 94546-4400
Phone: (510) 537-1210
Fax: (510) 537-1082
Show map & directions

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

Specialties & licences

Specialist (primary) Taxonomy 174400000X

Record details

NPI number1104020478
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedJune 12, 2007
Last updated in NPPESJuly 8, 2007

Other providers in Castro Valley