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

MS. Ann M. Brennan, NP

Individual provider Ambulatory Women's Health Care Registered Nurse · NPI 1558419200

MS. Ann M. Brennan, NP is an Ambulatory Women's Health Care Registered Nurse in Palo Alto, California. Licensed in California and South Carolina. Registered with an NPI since 2007.

Licensed in
CA, SC
In the registry since
2007
Specialties on file
4
What do these letters mean?
NP — Nurse Practitioner
An advanced practice nurse who can diagnose, treat and in most states prescribe.

See every abbreviation used in this directory →

Practice location Address checks out

770 Welch Rd
Palo Alto, CA 94304-1511
Phone: (650) 498-2568
Fax: (650) 723-4312
Show map & directions

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

Specialties & licences

Pediatric Nurse Practitioner (primary) Taxonomy 363LP0200X · Licence 8652 (CA)
Ambulatory Women's Health Care Registered Nurse Taxonomy 163WW0101X · Licence RN526080 (CA)
Obstetrics & Gynecology Nurse Practitioner Taxonomy 363LX0001X · Licence NPF8652 (CA)
Acute Care Nurse Practitioner Taxonomy 363LA2100X · Licence 3719 (SC)

Record details

NPI number1558419200
Entity typeIndividual (Type 1)
GenderFemale
Credentials NP
Sole proprietorNo
NPI enumeratedJanuary 8, 2007
Last updated in NPPESSeptember 26, 2014