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A. John                        Ryan, Jr

A. John Ryan, Jr MD

Department of Medicine

Clinical Associate Professor

Specialty/Research Focus

Endocrinology, Diabetes and Metabolism


Education and Training:
  • Fellowship, Endocrinology and Metabolism, SUNY Affiliated Hospitals (1983)
  • Residency, SUNY Affiliated Hospitals (1981)
  • Residency, Veterans Administration Medical Center (1981)
  • MD, Internal Medicine, Cornell University Medical College (1978)
  • AB, Brown University (1974)
  • Associate Professor of Medicine, Medicine, University at Buffalo (1997-present)
  • Attending Physician, Medicine, Erie County Medical Center, SUNY (1983-present)
  • Assistant Professor of Clinical Medicine, Medicine, University at Buffalo (1985–1996)
Awards and Honors:
  • Siegel Award Phase 1 Honorable Mention (2009)
  • White Coat Award (1990)

Evaluative Studies and Case Reports:
  • Ambrus CM, Anthone S, Horvath C, Kalghatgi K, Lele AS, Eapen G, Ambrus JL, Ryan AJ, Li P. Extracorporeal enzyme reactors for depletion of phenylalanine in phenylketonuria.. Ann Intern Med. 1987; 106(4).

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Clinical Specialties:
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Insurance Accepted:

Contact Information

Erie County Medical Center
462 Grider Street
Buffalo, NY 14215
Phone: (716) 898-5066

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