Kosisochi Obinwanne, M.D.

Our Physicians

Timothy McKenna D.O., FACOS

David Hagan, M.D., FACS

Michael Eigenberg, M.D., is board-certified in General Surgery and uses the latest in technology and minimally invasive and endoscopic techniques.  Our General Surgery team diagnoses and treats patients with diseases and disorders affecting the abdomen, digestive tract, breast, skin, and more.

Dr. Eigenberg previously served as an Assistant Professor and Faculty Surgeon at Michigan State University’s College of Human Medicine in the Acute Care Division and came to Sparrow from Surgery Group of Grand Island, LLC, in Grand island, Neb.

He is a member of the American College of Surgeons and is certified in da Vinci Robotic Surgery, Fundamentals of Laparoscopic Surgery, Advanced Trauma Life Support, Advanced Cardiac Life Support and Basic Life Support.

Timothy McKenna, D.O., graduated from The Honor College at Michigan State University with a Bachelor of Science degree in Biochemistry. He completed medical school at MSU College of Osteopathic Medicine and completed his General Surgery Residency at Detroit Osteopathic Hospital. He is a Fellow of the American College of Osteopathic Surgeons and a member of the American Society of Breast Surgeons. 

Dr. McKenna has a special interest in breast surgery.  He currently serves as the Surgical Director of the
Sparrow Health System Multidisciplinary Breast Cancer Clinic.  He previously served as Chairman of the Department of Surgery at Sparrow Health Systems from 2005 through 2008.

Hugh Lindsey, M.D., FACS

Kosisochi Obinwanne, M.D., is a minimally invasive surgeon who has dedicated his career to performing bariatric and general surgical procedures, such as: cholecystectomy, hernia repairs, stomach intestinal and colon surgery, appendectomy and splenectomy.

A board-certified General Surgeon by the American Board of Surgery, Dr. Obinwanne graduated in 2001 from the University of Ibadan College of Medicine in Nigeria, completed his general surgery residency at Spartanburg Regional Medical Center in South Carolina, and his fellowship training in Bariatric Surgery/General Surgery at Gundersen Lutheran Medical Center in Wisconsin.

David Hagan, M.D., earned a Bachelor of Art degree in Biology from Albion College and completed Medical School at the University of Michigan. He completed his general surgical residency at Fairview General Hospital in Cleveland, Ohio. Dr. Hagan is a Fellow with the American College of Surgeons.

KhangHy D Nguyen, D.O., FACOS, FACS

Dr. Nguyen graduated from the Michigan State University’s College of Osteopathic Medicine in 2004 and completed his surgical residency at McLaren Greater Lansing in 2009. He is a board-certified general surgeon providing a broad range of surgical care including minimally invasive procedures and endoscopy. 

After completing his residency, Dr. Nguyen fulfilled his Health Professional Scholarship duties by serving active duty in the United States Air Force at Joint Base Andrews until his honorable discharge in 2013. As an active duty surgeon, he completed two tours of duty to Afghanistan in support of Operation Enduring Freedom.  Before coming to Sparrow, he previously served as Assistant Chief of Surgery for the Mid-Atlantic Permanente Group covering the northern Virginia area.

Michael Eigenberg, M.D.

Hugh Lindsey, M.D., a Certified Physician Executive, leads the Sparrow Medical Group General Surgery Lansing practice. He is board-certified in General Surgery with 20 years of broad-based general surgery experience and performs a wide array of minimally invasive as well as GI endoscopic procedures.

Dr. Lindsey earned his medical degree from the University of Toledo College of Medicine in Toledo, Ohio, completed his general surgery residency training at Michigan State University and interned at the Naval Hospital in Portsmouth, Virginia.

Before coming to SMG General Surgery Lansing he served as Chief Medical Officer for Hayes Green Beach Memorial Hospital in Charlotte.