Andrew Posselt

MD PhD

Bariatric and transplant surgeon

Dr. Andrew Posselt, a bariatric and transplant surgeon, is co-director of the Pancreatic Islet Transplantation Program at UCSF Medical Center. He specializes in adult and pediatric kidney, liver and pancreas transplantation, as well as laparoscopic and open (traditional) bariatric surgery.

In addition to caring for patients, Posselt conducts research on pancreatic islet cell transplantation, a procedure that can allow people with type 1 diabetes to discontinue insulin therapy. He also investigates mechanisms by which a transplant recipient's body rejects or tolerates tissue from a donor who isn't genetically identical, and he studies the metabolic and biochemical consequences of bariatric surgery.

Posselt earned his medical degree and a doctorate in immunology from the University of Pennsylvania. He completed residencies in internal medicine and general surgery as well as a transplant fellowship at UCSF, before joining the staff in 2003.

Posselt is a member of several professional and honorary societies, and has given presentations on transplant issues related to patient care and research. At UCSF, he supervises residents and fellows in transplant services and general surgery.

  • Education

    University of Pennsylvania School of Medicine, 1993

  • Residencies

    UCSF Medical Center, Internal Medicine, 1996

    UCSF Medical Center, Surgery, 2000

  • Board Certifications

    Surgery, American Board of Surgery

  • Academic Title

    Professor

  • Languages

    Czechoslovakian

    French

    German

    Spanish

I consciously take my time with patients. If they have questions, I’ll listen. It makes a huge difference.

Bariatric Surgery Center

400 Parnassus Ave., Second Floor
San Francisco, CA 94143

Kidney Transplant Center

400 Parnassus Ave., Seventh Floor
San Francisco, CA 94143

Liver Transplant Program

400 Parnassus Ave., Third Floor
San Francisco, CA 94143

Pancreas Transplant Services

400 Parnassus Ave., Seventh Floor
San Francisco, CA 94143

Total Pancreatectomy – Islet Auto-Transplant (TP-IAT) Clinic

400 Parnassus Ave., 7th Floor
San Francisco, CA 94143-0780

My reviews

4.9

Overall Experience
103 Reviews
He is wonderful! He's very friendly and explains things in a way that is totally understandable. He took the time to listen to me and answered all my questions. He took my fears and concerns away. I feel totally confident with him being my surgeon!
Explained things in a way that was easy to understand
102 Reviews
Did the doctor pay attention to your concerns
103 Reviews
Gave easy to understand instructions about taking care of health problems or concerns
100 Reviews
Knew the important information about your medical history
103 Reviews
The provider showed respect for what you had to say
102 Reviews
The provider spent enough time with me
103 Reviews

Selected research

Decorative Caduceus

Treatment of Type I Diabetes by Islet Transplantation Into the Gastric Submucosa Study Protocol

off insulin therapy for at least 1 week and all of the following criteria are met: HbA1c < 6.5% or a > 2.5% decrease from baseline; Daily fasting capillary glucose should not exceed 140 mg/dL (7.8 mmol/L) more than 3 times in the ...

Recruiting

My work

Watch Dr. Posselt's story

Cancer patient receives the gift of a lifetime

Doctor stories - Andrew Posselt

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