Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Alexandra Gersing, MD

Individual provider Vascular & Interventional Radiology Physician · NPI 1578386967

Alexandra Gersing, MD practises Diagnostic Radiology in San Francisco, California. Qualified in 2011, 15 years ago. Practices with University of California San Francisco, a 1,793-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
15
Licensed in
CA
In the registry since
2024
Specialties on file
2
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

400 Parnassus Ave
San Francisco, CA 94143-2202
Phone: (415) 353-1457
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1500 Owens St, San Francisco, CA 94158-2334 — (415) 353-1457

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence SPI854 (CA)
Vascular & Interventional Radiology Physician Taxonomy 2085R0204X · Licence SPI854 (CA)

Record details

NPI number1578386967
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 4, 2024
Last updated in NPPESFebruary 12, 2026
Certification dateFebruary 12, 2026

Medicare enrollment

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

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolOTHER
Graduated 2011 (15 years in practice)
Group practice University Of California San Francisco — 1793 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations8 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 patients620
Services billed 903 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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at University of California San Francisco

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1793 clinicians in the practice; 12 are shown here.

Other providers in San Francisco