Marquis Top Health Care Professionals

Callistus Morgan Onwenu, PharmD

Title: Pharmacist
Company: Ultimate Medical Pharmacy
Location: Auburn Hills, Michigan, United States

Callistus Morgan Onwenu, PharmD, Pharmacist at Ultimate Medical Pharmacy, has been recognized by Marquis Who’s Who Top Healthcare Professionals for dedication, achievements, and leadership in pharmacy.

With more than 30 years of experience to his name, Dr. Onwenu has excelled as the manager, owner, chief executive officer and pharmacist-in-charge at Ultimate Medical Pharmacy in Auburn Hills, Michigan since 2012. Prior to these positions, he was active as the director of pharmacy at Select Medical Corporation from 2011 to 2012 and a clinical pharmacist with Select Specialty Hospital in Detroit, Michigan in 2011. Dr. Onwenu previously served at Harper University Hospital and Detroit Medical Center as a clinical pharmacist between 1994 and 2010 and a pharmacy intern between 1990 and 1994.

During this time, Dr. Onwenu additionally worked as a staff pharmacist at a Rite Aid Pharmacy from 1995 to 2000. Before his tenure within his field, he was recruited as a security guard for Ricco Security and Investigations Inc. from 1988 to 1990. Dr. Onweno began his career operating in sales for Cee Jays Beauty and Barber Supply from 1985 to 1988.

Dr. Onwenu initially pursued an education at Highland Park Community College, from which he earned an Associate of Science, with honors, in 1986. He continued his formal academic efforts with a Bachelor of Science in pharmacy at Wayne State University College of Pharmacy and Allied Health Professions in 1994. Dr. Onwenu eventually concluded his studies in the Chicago College of Pharmacy at Midwestern University, where he graduated in 2002 with a Doctor of Pharmacy.

Beyond his primary professional responsibilities, Dr. Onwenu has been affiliated with the  Detroit, Michigan branch of the Peoples Club of Nigeria International, the Old Orlu Ezinwanne Association of Michigan, the  Isu Association of Friends & Relatives in Michigan and the Nigerian Foundation of Michigan. Having fostered a longstanding interest in medicine and pharmacy, he was inspired to pursue his specific career path and establish his own pharmacy as it was the best way to integrate his skills and knowledge into his burgeoning career. Among his many accomplishments, Dr. Onwenu is proud to have grown his pharmacy business out of nothing with his own two hands and fulfilled the American Dream.

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