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

MS. Yvonne T. Porterfield, CNS

Individual provider Adult Psychiatric/Mental Health Clinical Nurse Specialist · NPI 1326162652

MS. Yvonne T. Porterfield, CNS is an Adult Psychiatric/Mental Health Clinical Nurse Specialist in Oakland, California. Licensed in California. Registered with an NPI since 2007.

Licensed in
CA
In the registry since
2007
What do these letters mean?
CNS — Clinical Nurse Specialist
An advanced practice nurse specialising in a patient population or setting.

See every abbreviation used in this directory →

Practice location Address checks out

2000 Broadway 2nd Fl
Oakland, CA 94612-2304
Phone: (510) 891-3859
Show map & directions

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

Specialties & licences

Adult Psychiatric/Mental Health Clinical Nurse Specialist (primary) Taxonomy 364SP0809X · Licence CNS 1235 (CA)

Record details

NPI number1326162652
Entity typeIndividual (Type 1)
GenderFemale
Credentials CNS
Sole proprietorNo
NPI enumeratedMarch 19, 2007
Last updated in NPPESJuly 8, 2007

Other providers in Oakland