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

Individual provider Obstetrics & Gynecology Physician · NPI 1003907338

Hanh-Nguyen DO, MD is an Obstetrics/Gynecology in Pleasanton, California. Graduated from University of California, Geffen School of Medicine in 1996, 30 years ago. Practices with Washington Township Medical Foundation, a 126-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
30
Trained at
University of California, Geffen School of Medicine
Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

5725 W Las Positas Blvd
Pleasanton, CA 94588-4054
Phone: (258) 479-3000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 39210 State St, Fremont, CA 94538-1456 — (510) 796-0162

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence A65840 (CA)

Record details

NPI number1003907338
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 28, 2006
Last updated in NPPESSeptember 6, 2024
Certification dateSeptember 6, 2024
Mailing address5725 W Las Positas Blvd, Pleasanton, CA 94588-4054

Medicare enrollment

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

Medicare specialtyOBSTETRICS/GYNECOLOGY
Medical schoolUNIVERSITY OF CALIFORNIA, GEFFEN SCHOOL OF MEDICINE
Graduated 1996 (30 years in practice)
Group practice Washington Township Medical Foundation — 126 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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