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

William Robert Corn, MD

Individual provider Neurological Surgery Physician · NPI 1962457903

William Robert Corn, MD practises Neurology in San Francisco, California. Graduated from Eastern Virginia Medical School in 1988, 38 years ago. Practices with City and County of San Francisco, a 369-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
38
Trained at
Eastern Virginia Medical School
Licensed in
CA
In the registry since
2006
Specialties on file
2
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

1001 Potrero Ave Rm 4M62
San Francisco, CA 94110-3518
Phone: (415) 206-4353
Fax: (415) 476-5582
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Neurological Surgery Physician (primary) Taxonomy 207T00000X · Licence G68193 (CA)
Neurology Physician Taxonomy 2084N0400X · Licence G68193 (CA)

Record details

NPI number1962457903
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 24, 2006
Last updated in NPPESJuly 13, 2026

Medicare enrollment

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

Medicare specialtyNEUROLOGY
Medical schoolEASTERN VIRGINIA MEDICAL SCHOOL
Graduated 1988 (38 years in practice)
Group practice City And County Of San Francisco — 369 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 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 patients93
Services billed 150 a service is one billed item, such as a visit, a test or a procedure
Average patient age70

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 City and County of San Francisco

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 369 clinicians in the practice; 12 are shown here.

Other providers in San Francisco