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

Alan G Fierro, DDS

Individual provider Public Health Dentistry · NPI 1801154166

Alan G Fierro, DDS is a Public Health Dentistry in Castro Valley, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2012
What do these letters mean?
DDS — Doctor of Dental Surgery
A dentist. DDS and DMD are the same qualification — universities choose which title to award.

See every abbreviation used in this directory →

Practice location Address checks out

20406 Redwood Rd Ste C-1
Castro Valley, CA 94546-4317
Phone: (510) 582-7919
Fax: (510) 582-8745
Show map & directions

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

Specialties & licences

Public Health Dentistry (primary) Taxonomy 1223D0001X · Licence 25094 (CA)

Record details

NPI number1801154166
Entity typeIndividual (Type 1)
GenderMale
Credentials DDS
Sole proprietorYes
NPI enumeratedApril 24, 2012
Last updated in NPPESApril 24, 2012
Mailing address20406 Redwood Rd, Suite C-1, Castro Valley, CA 94546-4317