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Office
416 Connable Ave
# Er
Petoskey, MI 49770Phone+1 231-487-4000Fax+1 616-975-9827
Summary
- Dr. William Gretzinger, DO is a board certified emergency medicine physician in Petoskey, Michigan. He is currently licensed to practice medicine in Michigan, Illinois, and Ohio. He is affiliated with McLaren Northern Michigan.
Education & Training
Mercy St Vincent Medical Center/Mercy Health PartnersResidency, Emergency Medicine, 1992 - 1995
Michigan State University College of Osteopathic MedicineClass of 1991
Certifications & Licensure
MI State License 1993 - 2027
IL State License 2014 - 2017
OH State License 1992 - 1996- American Board of Emergency Medicine Emergency Medicine
Awards, Honors, & Recognition
- Fellow (FACEP) American College of Emergency Physicians
Professional Memberships
- Fellow
