Honoring our physician veterans on Veterans Day

Friday, November 8, 2019

By: Femi Cole

Veterans Day is November 11. At BayCare Clinic, we are proud to recognize and honor our United States veterans.


This Veterans Day, we’re extending a special thank you to a few of our physicians who served in the armed forces.


Click the names below to read about each provider’s military experience.

Dr. William Reynders, ophthalmologist

Dr. Nels Rose, emergency medicine

Dr. Alexander Roitstein, cardiothoracic surgeon

Dr. Michael Eppinger, cardiothoracic surgeon

Dr. Robert Bjoraker, anesthesiologist

Dr. Michael Pierson, anesthesiologist

Dr. Jon Henry, orthopedic surgeon

Dr. Paul Baek, neurological surgeon

Dr. Richard Harrison, neurological surgeon

Dr. Ronald Christianson, radiologist

Dr. Jeffrey Shere, ophthalmologist


Dr. William Reynders is a veteran with BayCare Clinic Eye Specialists

Dr. William Reynders, an ophthalmologist with BayCare Clinic Eye Specialists, served in the U.S. Navy from 2010 to 2019.


During that time, he completed his internship and his residency training at Naval Medical Center San Diego in California.


“Both my father and my grandfather were in the Navy and I have a younger brother on active duty as well,” Reynders says. “It was important to me to carry on that tradition and serve our country.”


Reynders served as a General Medical Officer with the U.S. Marine Corps from 2011 to 2013 at Camp Lejeune in North Carolina and was deployed to Camp Leatherneck, Afghanistan, during that time.


He returned to the U.S. and served as a comprehensive ophthalmologist at Walter Reed National Military Medical Center in Bethesda, Maryland, from 2016 to 2019.


During his service, Reynders reached the rank of lieutenant commander and earned the Fleet Marine Force Warfare Officer Insignia and the Joint Service Commendation Medal.


“I think my time in the Navy prepared me well for my role here at BayCare,” Reynders says. “In the military, you inevitably have to work in a lot of different places with a lot of different people. I think those varied experiences made me well prepared to adapt to my new role.”


Reynders joined BayCare Clinic Eye Specialists in July 2019. He sees patients in Green Bay, Oconto Falls and Marinette.


“Overall, my time in the Navy was a very rewarding experience in my life,” Reynders says. “I have so many great memories, and it was an honor and a privilege to be able to take care of our armed forces and their families.”


Dr. Nels Rose with BayCare Clinic

Dr. Nels Rose, an emergency medicine physician with BayCare Clinic, has served in the U.S. Army National Guard since 2008.


Rose is a flight surgeon and serves as chief of aviation medicine for the state of Wisconsin. His duties include supervision of flight medics during stabilization and transport of patients using military helicopters. He also supports the 147th Aviation Battalion based in Madison. Wisconsin.


“I chose the Army National Guard due to my ability to serve as a physician and still maintain my civilian career as an emergency medicine physician,” Rose says. “My expertise in emergency medicine translates well in my role as a flight surgeon, providing medical direction for our medevac missions.”


Dr. Alexander Roitstein with Aurora BayCare Cardiothoracic Surgery

Dr. Alexander Roitstein, a cardiothoracic surgeon, served in the U.S. Air Force from 1998 to 2001. During this time, he achieved the rank of Major. In the Air Force, he served as staff cardiothoracic surgeon, a TRACS (trauma) instructor, and as Team Chief of Thoracic and Vascular Mobility at Lackland Air Force Base in San Antonio, Texas.


He was later recruited to join BayCare Clinic by Dr. Michael Pierson, an anesthesiologist with BayCare Clinic who served with Roitstein in the Air Force.


Michael Eppinger

Dr. Michael Eppinger, a cardiothoracic surgeon, was on active duty in the Air Force for more than 23 years. Eppinger spent most of his time at Lackland Air Force Base in San Antonio, Texas. He completed eight deployments to Afghanistan, Iraq and other locations.


“I pretty much did what every surgeon in the military has been doing,” Eppinger says. “When you’re deployed, you do everything. You’re not just a heart surgeon. Most of us are trained as general surgeons first.”


Dr. Robert Bjoraker with BayCare Clinic Anesthesia

Dr. Robert Bjoraker, an anesthesiologist, joined the Air Force in 1983 as a chemical engineer and served for three years at Wright-Patterson Air Force Base in Greene County, Ohio, near Dayton. From 1990 to 1994. he did his residency in anesthesiology at Wilford Hall Medical Center, a Level I trauma center at Lackland Air Force Base in San Antonio, Texas. He taught at the medical center from 1994 to 1998.


Bjoraker also served at the Royal Air Force, or RAF, Lakenheath Hospital in England as head of anesthesia.


Bjoraker joined the Navy Reserve in 2008 and deployed for nine months to the African nation of Djibouti. He retired as a Navy captain in April 2018.


Dr. Michael Pierson with BayCare Clinic Anesthesia

Dr. Michael Pierson, an anesthesiologist, served in the Air Force at Lackland Air Force Base in San Antonio, Texas, from 1988 to 2000 in reserve and active duty roles. After leaving the Air Force, Pierson joined BayCare Clinic in 2000 and later recruited Drs. Robert Bjoraker (anesthesia) and Alexander Roitstein (cardiothoracic surgery) to join BayCare Clinic.


Dr. Jon Henry with Orthopedics & Sports Medicine BayCare Clinic

Dr. Jon Henry, an orthopedic surgeon, served in the Army Reserve Medical Corps from 1996 to 2008 as an orthopedic surgeon.


He joined the Army Reserve during his orthopedic residency and did two combat deployments in Afghanistan and one in Iraq.


His service goal was to provide excellent orthopedic care for our military personnel and he says his military experiences enhanced his skills and confidence as a civilian surgeon.


Henry is also proud and humbled by his time spent in the military.


“My No. 1 realization from my own military experiences, especially from my combat service, is a far greater appreciation and respect for our veterans, for the sacrifices they and their families have made to benefit our country,” Henry says. “Our freedom is based on their honorable service and sacrifice.”


BayCare Clinic Neurological Surgeons Dr. Paul Baek and Dr. Richard Harrison

Two of our neurological surgeons served in the armed forces.


Dr. Paul Baek (left) was a member of the Navy from 1995 to 1998, stationed in San Diego, California, and was honorably discharged as a lieutenant commander in June 1998.


Dr. Richard Harrison (right) served in the Army Reserve Medical Corps from 1989 to 2009 at Fort Gillem in Georgia, near Atlanta.


Dr. Ronald Christianson with BayCare Clinic Radiology

Dr. Ronald Christianson, a radiologist, spent 13 years in the Air Force. He went to medical school at the University of Maryland, did an internal medicine internship at Wilford Hall Medical Center at San Antonio, Texas, and took aerospace medicine training in San Antonio.


He later served for two years as a flight surgeon at Vandenburg Air Force Base in California. He helped rescue civilians stranded in shipwrecks and plane crashes.


He worked as a space shuttle flight surgeon and took care of the astronauts and helped develop the shuttle program at Vandenburg.


Christianson also served in Desert Storm as a flight surgeon.


Dr. Jeffrey Shere with BayCare Clinic Eye Specialists

Dr. Jeffrey Shere, an ophthalmologist with BayCare Clinic Eye Specialists, joined the Army in 1992. After completing his four-year ROTC (Reserve Officer Training Corps) commitment in 1996, he was commissioned as a second lieutenant and attended medical school.


In 2000, he entered active duty as a captain in the Army. Over the next 16 years, he served as Chief of the Ophthalmology Service at Martin Army Hospital in Fort Benning, Georgia, as Chief of Ophthalmology at the Army Institute of Surgical Research, and he worked in a teaching position as an attending vitreoretinal surgeon in Washington.


In 2016, he transitioned out of active duty.


“I made the decision to transition into the Army Reserve and to take my current position at BayCare Clinic so my family and I could move closer to our extended family,” Dr. Shere says.


He feels honored and proud to be part of the Army.


“Most of my professional career has been spent among Soldiers, Sailors, Marines, and Airmen. Each day of that career I was humbled by their example of selfless service. There was no greater honor to be entrusted to take care of our nation’s greatest citizens,” he says.


His current reserve unit is a head and neck surgical augmentation team in St. Louis, Missouri.

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BayCare Clinic,, is the largest physician-owned specialty-care clinic in northeastern Wisconsin and Michigan’s Upper Peninsula. It is based in Green Bay, Wisconsin. BayCare Clinic offers expertise in more than 20 specialties, with more than 100 physicians serving in 16 area communities. BayCare Clinic is a joint partner in Aurora BayCare Medical Center, a 167-bed, full-service hospital. Follow BayCare Clinic on Facebook and Twitter.