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Physician Bios

Click on the Dr.'s name below to view his or her bio.

Macksood A. Aftab, D.O. Peter A. Lassing, M.D. Clinton E. Rogers, M.D.
Jamal U. Akbar, M.D. Mark R. Ludka, M.D. Biren R. Shah, M.D.
George F. Ascherl, Jr., M.D., F.A.C.R. Marcus W.C. MacNealy, M.D. Sanjay J. Talati, M.D.
Sultan Bhimani, M.D. Sigrid E. Messana, D.O. Julie Taylor, M.D.
Chirdeep Bhutani, M.D. Steve Min, D.O. Venkatramana R. Vattipally, M.D.
Scott E. Cheney, M.D. Rajesh Mithalal, M.D. Chandler G. Veenhuis, D.O.
Kristin M. Constantino, M.D. Gopi K. Nallani, M.D. Matthew L. Waack, M.D.
Gerard P. Farrar, M.D. Nobuo Nakagawa, M.D. William K. Wong, M.D.
Ramakrishnayya K. Gadam, M.D., F.A.C.R. Kristin M. Nelsen, M.D. Harvey K. Yee, M.D.
Sambasiva Kottamasu, M.D. F.A.C.R. Nasser O. Qadri, M.D.  

Physician Assistants

Jean E. Darnell, PA-C, BS RT(R)(M) Robert E. Toevs, PA-C  

George F. Ascherl, Jr., M.D., F.A.C.R.George F. Ascherl, Jr., M.D., F.A.C.R.
Staff Radiologist
Covenant HealthCare
St. Joseph Health System-Tawas
St. Mary’s of Michigan
St. Mary’s of Michigan-Standish Hospital
West Branch Regional Medical Center

Medical Degree and Fellowship
St. Louis University School of Medicine
  St. Louis, MO
Neuroradiology Fellowship
Neurological Institute of New York
Columbia University College of Physicians & Surgeons
  New York, NY

Internships
U.S. Public Health Service Hospital (Straight Medicine)
  Staten Island, NY

Residencies
Combined Residency Program
US Public Health Service Hospital
  Staten Island, NY
Columbia Presbyterian Medical Center
  New York, NY
Armed Forces Institute of Pathology
  Washington, D.C.

Certifications
American College of Radiology – Fellow (FACR)
American Board of Radiology in Diagnostic Radiology and Neuroradiology