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

Dr. Warren J Gasper, MD

Individual provider Surgery Physician · NPI 1427186212

Dr. Warren J Gasper, MD is a Vascular Surgery in San Francisco, California. Graduated from University of Maryland School of Medicine in 2003, 23 years ago. Practices with UCSF Dept of Surgery, a 211-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
23
Trained at
University of Maryland School of Medicine
Licensed in
CA
In the registry since
2007
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

513 Parnassus Ave # S-321 Ucsf Dept OF Surgery
San Francisco, CA 94143-2205
Phone: (415) 476-1239
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence A89802 (CA)
Vascular Surgery Physician Taxonomy 2086S0129X · Licence A89802 (CA)

Record details

NPI number1427186212
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 1, 2007
Last updated in NPPESJune 30, 2026
Certification dateJune 30, 2026

Medicare enrollment

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

Medicare specialtyVASCULAR SURGERY
Medical schoolUNIVERSITY OF MARYLAND SCHOOL OF MEDICINE
Graduated 2003 (23 years in practice)
Group practice Ucsf Dept Of Surgery — 211 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

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