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

Barbara Griesau

Individual provider Family Medicine Physician · NPI 1609934884

Barbara Griesau is a Nurse Practitioner in Martinez, California. Graduated from University of California, San Francisco School of Medicine in 1993, 33 years ago. Practices as a sole proprietor. Licensed in California.

Years since qualifying
33
Trained at
University of California, San Francisco School of Medicine
Licensed in
CA
In the registry since
2006
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Practice location Address checks out

2500 Alhambra Ave
Martinez, CA 94553-3156
Phone: (925) 370-5110
Fax: (925) 370-5142
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence RN345384 (CA)

Record details

NPI number1609934884
Entity typeIndividual (Type 1)
GenderFemale
Sole proprietorYes
NPI enumeratedDecember 4, 2006
Last updated in NPPESJuly 8, 2007
Mailing address50 Douglas Dr, Suite 391, Martinez, CA 94553-4098

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolUNIVERSITY OF CALIFORNIA, SAN FRANCISCO SCHOOL OF MEDICINE
Graduated 1993 (33 years in practice)
Accepts Medicare assignment Not indicated
Practice locations2 on file with Medicare

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