Doctor Bios

New Horizons Medical Center, P.C.

Office
19335 Merriman Road
Livonia, MI 48152

Hours: Monday – Friday
8:00 am – 5:00 pm
By Appointment

Phone: 248.474.4900
Fax: 248.474.3278


Sean P. Coyle, M.D.

Sean Coyle, M.D. received his undergraduate degree from Georgetown University and his medical degree from the Georgetown University School of Medicine in Washington, D.C. He did his graduate medical education at the U.S. Naval Hospital in Oakland, CA. Dr. Coyle then served on active duty as a general medical officer with the U.S.Navy for three years before moving to Michigan.

Originally from the New York City area, Dr. Coyle has been working as a General Practitioner in Livonia since 1989 and he enjoys geriatric medicine, cardiology, orthopedics and he sees patients 16 years of age and older. Dr. Coyle is in the office Monday thru Friday from 8 am to 5 pm, by appointment, and is affiliated with St. Mary Mercy Hospital in Livonia and the St. Joseph Mercy Medical System.

Chuck Yadmark, M.D.

Chuck Yadmark, M. D. received his undergraduate degree from the University of Michigan and his medical degree from the University of Michigan School of Medicine in Ann Arbor. He completed his internship at William Beaumont Hospital in Troy, MI and his residency in Internal Medicine at St. Joseph Mercy Hospital in Ann Arbor. Dr. Yadmark is board certified in Internal Medicine and sees children and adults in his practice.

He is in the office Monday, Tuesday, Thursday, Friday from 12:30 pm to 4:00 pm and Wednesday from 9:30 am to 1:00 pm, by appointment.

Originally from Cleveland, OH, Dr. Yadmark also enjoys working as a professional photographer for “Nascar Illustrated” magazine and as a freelance photographer for the Western Michigan University athletic program.

Khalil Nahra, M.D.

Khalil Nahra, M.D. received his medical degree at The American University School of Medicine in Beirut, Lebanon. As chief resident, Dr. Nahra completed his internship and residency in General Surgery at New York University and received additional training in cancer surgery at the Sloan Kettering Hospital in New York. Dr. Nahra completed a fellowship in colon rectal surgery at the Lahey Clinic in Boston, Massachusetts and received additional post graduate training at St. Mark’s Hospital in London, England. Dr. Nahra is board certified in Colon Rectal Surgery and General Surgery and is affiliated with St. Mary Mercy Hospital in Livonia and The University of Michigan Health System. Dr. Nahra sees patients on Tuesday and Thursday from 8:30 am to 11:00 am, by appointment. Colonoscopies are performed at St. Mary Mercy Hospital and at the University of Michigan Surgery Center in Livonia.