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Dr. Zelnick is on Doximity

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Education & Training

  • University of Texas Health Science Center San Antonio Joe and Teresa Lozano Long School of Medicine
    University of Texas Health Science Center San Antonio Joe and Teresa Lozano Long School of MedicineFellowship, Gastroenterology, 1978 - 1980
  • University of Texas Southwestern Medical Center
    University of Texas Southwestern Medical CenterResidency, Internal Medicine, 1975 - 1978
  • Lewis Katz School of Medicine at Temple University
    Lewis Katz School of Medicine at Temple UniversityClass of 1975

Certifications & Licensure

  • PA State Medical License
    PA State Medical License 1980 - 2024
  • American Board of Internal Medicine Internal Medicine
  • American Board of Internal Medicine Gastroenterology

Awards, Honors, & Recognition

  • Fellow (FACG) American College of Gastroenterology

Professional Memberships

Hospital Affiliations