Board Certifications

Board-certified by the American Board of Dermatology

Hospital Privileges

Dr. Chren has hospital affiliations at Hosp Appt, San Francisco VA Med Ctr, CA.


  • Undergraduate & Medical School

    Yale University School of Medicine, Connecticut (1978, MD)
  • Post-Medical School Training

    Int, Mount Sinai Hospital, New York, NY (1978-1979); Res, Internal Medicine, Stanford Hospital, Stanford, CA (1981-1982); Res, Dermatology, University Hospitals of Cleveland, Cleveland, OH (1986-1989)

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