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

Individual provider Obstetrics & Gynecology Physician · NPI 1396726295

Dr. Siobhan Calhoun, MD is an Obstetrics/Gynecology in Fremont, California. Graduated from Eastern Virginia Medical School in 1995, 31 years ago. Practices with Washington Township Medical Foundation, a 126-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
31
Trained at
Eastern Virginia Medical School
Licensed in
CA
In the registry since
2005
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

2299 Mowry Ave #3C
Fremont, CA 94538-1621
Phone: (510) 796-7057
Fax: (510) 796-5198
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence A62859 (CA)

Record details

NPI number1396726295
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 8, 2005
Last updated in NPPESJuly 8, 2007
Mailing address2299 Mowry Ave, 3c, Fremont, CA 94538-1621

Medicare enrollment

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

Medicare specialtyOBSTETRICS/GYNECOLOGY
Medical schoolEASTERN VIRGINIA MEDICAL SCHOOL
Graduated 1995 (31 years in practice)
Group practice Washington Township Medical Foundation — 126 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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