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

Shamsi M. Vatannia, MD

Individual provider Obstetrics & Gynecology Physician · NPI 1790863280

Shamsi M. Vatannia, MD practises Obstetrics/Gynecology in Hayward, California. Qualified in 2002, 24 years ago. Practices with Saint Agnes Medical Foundation, a 162-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
24
Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

27212 Calaroga Ave
Hayward, CA 94545-4339
Phone: (510) 785-5000
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Additional practice locations (1)

  • 1303 E Herndon Ave, Fresno, CA 93720-3309 — (559) 450-3026

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence A96343 (CA)

Record details

NPI number1790863280
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 1, 2006
Last updated in NPPESMarch 24, 2026
Certification dateMarch 24, 2026

Medicare enrollment

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

Medicare specialtyOBSTETRICS/GYNECOLOGY
Medical schoolOTHER
Graduated 2002 (24 years in practice)
Group practice Saint Agnes Medical Foundation — 162 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients55
Services billed 111 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at Saint Agnes Medical Foundation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 162 clinicians in the practice; 12 are shown here.

Other providers in Hayward