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

Cathy Steirn

Individual provider Family Nurse Practitioner · NPI 1356428015

Cathy Steirn is a Family Nurse Practitioner in Martinez, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2006

Practice location Address checks out

2500 Alhambra Ave
Martinez, CA 94553-3156
Phone: (925) 370-5110
Fax: (925) 370-5142
Show map & directions

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

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence RN232217 (CA)

Record details

NPI number1356428015
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorYes
NPI enumeratedNovember 1, 2006
Last updated in NPPESJuly 8, 2007
Mailing address50 Douglas Dr, Martinez, CA 94553-4098

Other providers in Martinez