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Dr. Klein is on Doximity

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  • Office

    1776 Ygnacio Valley Rd
    Ste 201
    Walnut Creek, CA 94598
    Phone+1 925-937-0995
    Fax+1 925-937-3918

Education & Training

  • University of California (San Francisco)
    University of California (San Francisco)Residency, Obstetrics and Gynecology, 1976
  • Icahn School of Medicine at Mount Sinai/Mount Sinai Hospital
    Icahn School of Medicine at Mount Sinai/Mount Sinai HospitalInternship, Internal Medicine, 1971 - 1972
  • University of Pittsburgh School of Medicine
    University of Pittsburgh School of MedicineClass of 1970

Certifications & Licensure

  • CA State Medical License
    CA State Medical License 1971 - 2025
  • PA State Medical License
    PA State Medical License 1974 - 1992
  • American Board of Obstetrics and Gynecology Obstetrics & Gynecology

Awards, Honors, & Recognition

  • Regional Top Doctor Castle Connolly, 2014
  • Fellow (FACOG) American Congress of Obstetricians and Gynecologists

Press Mentions

  • All Herbs Are Not Created Equal
    All Herbs Are Not Created EqualAugust 6th, 2021
  • Mechanism of Vaccine-Induced Immune Thrombotic Thrombocytopenia (VITT)
    Mechanism of Vaccine-Induced Immune Thrombotic Thrombocytopenia (VITT)August 4th, 2021

Professional Memberships