Our People

Management and Support Staff:

Jerry3Jerome (Jerry) Reller – General Manager

I have served as the Shared Imaging Services general manager since 1991. My background is in hospital finance, having previously been employed by Meriter Hospital in Madison Wisconsin as an accounting manager. As general manager it continues to be my pleasure to work with an excellent group of client hospitals and an extraordinary group of employees. I have been proud to work for an organization where the employees all strive toward the goal of providing high quality imaging services to rural hospitals.



Marsha Jensen, RDMS, RDCS – Ultrasound Manager

My career with Shared Imaging began in 1986. Medical Sonography has been my lifetime passion and I find great pleasure in working with our patients, physicians, client hospitals, and staff. I have been the Ultrasound manager since 2008 and I am proud to lead our team of Sonographers who provide a wealth of clinical experience and expertise. My educational background includes the University of Wisconsin-La Crosse; University of Wisconsin-Madison-Radiologic Technology; and the University of Colorado Health Sciences Center-Medical Sonography. Past employment positions were held at; Mayo Clinic, Rochester, Minnesota; Swedish Medical Center, Engelwood, Colorado; and Gundersen Clinic, La Crosse, Wisconsin. Memberships in the ARDMS and SDMS and I am registered in Abdomen, OB-Gyn, and Adult Echocardiography.


Mark Lins, BS, CNMT – Nuclear Medicine Manager

Upon completion of my Bachelor of Science degree in Nuclear Medicine Technology from the University of Wisconsin – La Crosse, I worked at Aurora St. Luke’s Medical Center in Milwaukee, WI.  Since November of 1991, I have been employed by Shared Imaging Services.  After working many years at SIS as a Nuclear Medicine Staff Technologist, I am now serving as the Nuclear Medicine Manager.  Throughout my career I have enjoyed treating each patient as a family member and bringing “Big City” medical imaging to the rural hospitals of south central and southwestern Wisconsin.  I am privileged to work with a great staff in a part of the state that is close to my heart.


AnitaAnita M. Walczak, RDMS, RDCS – Cardiac Echo Manager

I am the manager for our Cardiac Ultrasound division of Shared Imaging Services. Currently, there are four other wonderful, hardworking Sonographers on my team. I obtained my Ultrasound training 23 years ago in Madison, Wisconsin at UW Hospital’s program, first in General/Vascular then going on to learn Echocardiography. In my early years I scanned exams for both the General and Cardiac divisions of Shared Imaging Services, but have been dedicated to only doing Cardiac work for the past 17 years. I am a member of the American Society of Echocardiography and our local chapter, South Central Wisconsin Ultrasound Society. It is a privilege to do what I do and work with such amazing people!


Brenda Perry – Office Manager

I started working at Shared Imaging Services as the Office Manager in January of 1998. I bring with me many years of experience in business management. Previously I traveled between Southern Wisconsin, Milwaukee and Illinois to train other employees on computer programs and to update new programs as well as maintain them. I then moved onto the Sauk Prairie Hospital in the business office and later the Medical Imaging Department. I like the different jobs that I get to do from payroll to accounts payable to scheduling and billing. I enjoy getting to talk to staff at the hospitals each day and getting to really know them as much as I do.


Ultrasound Technologists:


Rebecca (Becky) Lichte, RDMS – Ultrasound Technologist

I joined Shared Imaging Services in 2003.  I graduated from Madison Area Technical College in 2000 with an Associate’s Degree in Radiography.  I graduated from Chippewa Valley Technical College in 2003 with an Associate’s Degree in Diagnostic Medical Sonography.  I am a registered Radiologic Technologist, Mammographer, and Sonographer with specialties in Abdomen, OB/GYN and Breast sonography.




Krisitin N. RDMS – Ultrasound Technologist

In 2005 I receive my degree in Diagnostic Medical Sonography from Chippewa Valley Tech College in Eau Claire, WI. With my degree I’ve had the privilege of working in different facilities in three different states. I’ve been working at Shared Imaging Services since 2012. The hospitals I work at are Columbus, Stoughton, Edgerton, Dodgeville and Darlington. I’m a current member of ARDMS & South Central Wisconsin Ultrasound Society. I truly love ultrasound and it’s an honor for me to be a part in caring for patients.



Tracy Badertscher RT(R)(M), RDMS, RVT, BR – Ultrasound Technologist

I received my ultrasonography education at The University of Wisconsin in Madison in 1999. I am actively certified by the American Registry of Diagnostic Medical Sonography with specialities in OB/Gynecology, vascular, breast  and Abdomen. I am also certified by The American Registry of Radiologic Technologist in radiology and mammography in which I also hold a State of Wisconsin licensure. Additionally, I am certified in CPR. I belong to The Society of Diagnostic Medical Sonographers and I am currently compliant in continuing medical education in all my fields of study. I joined Shared Imaging Services in 2003. I spend most of my diagnostic scanning at Upland Hills Health in Dodgeville along with Southwest Health Center in Platteville and Lafayette County Hospital in Darlington. My extensive knowledge of ultrasonography along with my ability to communicate effectively with the patient and the entire health care team make me a great asset to these local hospitals as well as the Shared Imaging team. I live in Dodgeville and I am a loyal member of the community. I have small town values which shows in my compassionate scanning and caring personality.




Shannon Kreuger RDMS, RVT, RTR – Ultrasound Technologist

My name is Shannon Kreuger. I graduated in 2008 from Blackhawk Technical College with a degree in Diagnostic Medical Sonography. I am currently accredited by the ARDMS ( American Registery Diagnostic Medical Sonography) in abdomen, OB/GYN and vascular. I am also currenty accredited by the ARRT ( American Registry of Radiologic Technologist )in radiology. I have been a member of the Shared Imaging group since 2009. I enjoy working with rural hospitals and being able to provide personalized care.


Rev. Richard Schenck, RTR, RDMS, RDCS – Ultrasound Technologist

I received my radiology and ultrasound education in Eau Claire, Wisconsin 1975-1977. I am currently a registered diagnostic medical sonographer with specialties in OB/GYN and adult echocardiography and a registered and licensed radiologic technologist. Before coming to work at Shared Imaging Services in 1997, I worked as a medical sonographer at St. Clare Hospital in Baraboo, Wisconsin for 20 years. In the course of my ultrasound career I have also been a clinical ultrasound instructor with Chippewa Valley Technical College and with Advanced Life Support in obstetrics physician training course with UW Hospital in Madison, Wisconsin. In addition to my ultrasound and radiology education I am also an Ordained Minister in The American Fellowship Church and a certified professional hypnotist.


Lisa Williams, ARRT, RDMS – Ulrasound Technologist

I started my healthcare career by attending Western Wisconsin Technical College in LaCrosse, WI. There I earned my degree in Radiography. I then worked for three years as an ARRT register X-Ray technologist. Then I chose to continue on to ultrasound school at St. Lukes Hospital in Milwaukee, Wisconsin. I became a register ultrasonographer with specialties in abdomen and OB/Gyn. I have been with Shared Imaging Services for twenty years. I enjoy the variety this job provides, including the variety of exams that I perform and the variety of patient that I get to meet and the people I get to work with at the many hospitals that Shared Imaging Services partners with.


I13009_44440Carol Hinderman, ARDMS, ARRT – Ultrasound Technologist

My name is Carol Hinderman and I graduated from the University of Wisconsin Hospital and Clinics Diagnostic Medical Sonography/Registered Vascular Technology program in 2001. I am ARDMS registered in Abdomen, OB/GYN, Vascular Technology and I also hold my ARRT accreditation as a Radiographer. I am a member of The Society of Vascular Technology. I joined Shared Imaging Services in 2005 with a group of highly trained and motivated individuals. My main focus is patient care, priority one. As a sonographer we are always traveling to several hospitals to provide care to a variety of clinical situations. It is a privilege to be able to provide that care. My husband was in the United States Air Force and we were stationed at several different Air Force bases. I was a civil service employee working in the finance office on the the Air Force base helping to pay the military members their base pay, travel pay, pay the bills on the base and also worked on the base’s budget. The pride I felt working for the Government/Military members is a feeling unlike any other. It is the same pride I feel when I can make a patient feel better, even if it is just by listening to them.



Cathie Young, RDMS – Ultrasound Technologist

Bio coming soon





Nuclear Medicine Technologists:


Avella (Val) Thomas, ASRT (N) Nuclear Medicine Technologist

I bring to our clients, and my patients, 45 years of experience as a Nuclear Medicine Technologist. I received my training at an accredited, hospital based program, in Detroit MI. After graduating from Henry Ford, in July of 1970, my journey through Nuclear Medicine has taken many turns. I have worked as a staff tech, Nuclear Medicine data processing tech, and Nuclear Cardiac/ research tech at Henry Ford. Applications specialist for Medical Data Systems, Ann Arbor MI., and manager of an out-patient Nuclear Medicine imaging clinic, Omni Medical, Southfield MI. Ending my journey at SIS, where I have been for the last 26 years. I have enjoyed discovering the beauty of SW Wisconsin and meeting a host of great patients, clients, and their employees. Some of which have become good friends.


Samantha Wedel, BS, CNMT – Nuclear Medicine Technologist

I graduated from the University of Wisconsin-La Crosse on May 14th, 2011 with a degree in Nuclear Medicine Technology. I completed my Nuclear Medicine internship from Edward Hines Jr. Veterans Hospital and Loyola University Medical Center in Illinois on June 30th, 2011. I am NMTCB certified and have been a member of the Society of Nuclear Medicine since 2011. I have been an active Nuclear Medicine Technologist since March 2012 and have been employed with Shared Imaging Services since April 2014. As a Nuclear Medicine Technologist I have a positive attitude and energy and a caring nature to provide quality Nuclear Medicine Procedures and Images to my patients.


Travis Warmka, B.S., CNMT – Nuclear Medicine Technologist

I joined SIS in November of 2014. Prior to working for Shared Imaging Services, I was a Nuclear Medicine Technologist in Sturgeon Bay, WI for 2+ years. I earned my Bachelor of Science degree from the University of Wisconsin- La Crosse in Nuclear Medicine Technology with a minor in Business Administration. I completed my internship at St. Luke’s in Milwaukee, WI in 2012. I have been a member of the Society of Nuclear Medicine since graduation. I enjoy working in nuclear medicine because of the opportunity to interact with patients while using always changing technology.

BruceGBruce Gullickson, B.S. CNMT, EMTB – Nuclear Medicine Technologist

My name is Bruce Gullickson. I am a board certified Nuclear Medicine Technologist. I have been fortunate enough to be with Shared Imaging Services since 1992. I graduated from St. Cloud State University, Minnesota, with a bachelor’s degree in Nuclear Medicine. My final year of training was spent performing a one-year internship at St. Luke’s Medical Center in Milwaukee. I grew up in the rural farming community of Starbuck, which is located in west central Minnesota. I was drawn back to the rural areas of Wisconsin because of this small town upbringing. Thankfully, Shared Imaging provided me the opportunity to apply my nuclear skills and serve the rural communities. Working as a mobile tech provides me with the opportunity to problem solve, be self-reliant and multi task. All of which provide for an ever-changing work place. My wife, Cora, and I have two daughters. We reside outside of Mazomanie. I have been a volunteer EMT with District One EMS since 2006 and currently serve as the Infectious Control/Assistant Director.


Kody Brost, B.S, RTR, CNMT – Nuclear Medicine Technologist

One of my goals in life has always been an interest in obtaining a challenging and rewarding position in the healthcare industry. I began this journey almost thirty years ago upon graduation from UW-Madison with a B.S. Zoology in 1990. I attended a two year school based Radiography program at St. Joseph’s Hospital-Marshfield, WI. I am an ARRT registered technologist in the field of Radiography and an active member in ASRT. Following eight years working as an RTR cross-trained in Nuclear Medicine, I attained my first of two managerial positions. I served as an Imaging Department Manager for several years. I was afforded an opportunity to attend a one year internship program in Nuclear Medicine, interestingly enough back at St. Joseph’s Hospital in Marshfield, WI, where upon completion I became CNMT eligible. I am certified in the field of Nuclear Medicine by NMTCB. I have since been working as a Certified Nuclear Medicine Technologist for Shared Imaging Services. I enjoy spending time with my wife and four children; as well as; coaching and playing sports and other outdoor activities.


Russ Lentz, BS, CNMT – Nuclear Medicine Technologist

As a technologist for 36 years I  have seen may changes in the field. After graduating from UW-LaCrosse in 1978, I attended a one year internship at Hines VA Hospital in Illinois. I landed my first position with Consultant Physicians in Beaver Dam, WI where I was one of three technologist. Working with Poloroid film and making our own kits to perform the procedures, we also provided mobile service to seven rural hospitals. In 1994 I joined the staff a Shared Imaging Services where I had to learn about the computers that are now used to do diagnostic studies. For the last 20+ year, I have been a staff technologist at Shared Imaging Services. I have been a member of the Society of Nuclear Medicine since 2008 and have been certified by the NMTCB since 1979. I enjoy the changing scenery as I provide this ever changing mobile nuclear medicine service.


I13009_44449Holly Uselman, CNMT – Nuclear Medicine Technologist

Bio coming soon






Shelley Hertzfeldt, CNMT – Nuclear Medicine Technologist

Bio coming soon





 Cardiac Echo Technologists:

Stacy Suckey, RDCS – Cardiac Echo Technologist

My name is Stacy Stuckey.  I have been with Shared Imaging for sixteen years.  I graduated from Chippewa Valley Technical College in 1999, with a degree in Diagnostic Medical Sonography.  I became registered in 2001 in Adult Echocardiography.  I Live in Stoughton Wisconsin.  I currently am an Echocardiographer for Shared Imaging and my primary hospitals are Sauk Prairie Healthcare, Stoughton Hospital and Upland Hills Health in Dodgeville.




Dana Heenan, B.S., RDCS, RDMS – Cardiac Echo Technologist

I am a graduate of UW Stevens Point with a degree in Biology and Chemistry. I returned to school and earned a degree in Diagnostic Medical Sonography graduating in 1997. I am board certified by the American Registry of Diagnostic Medical Sonography holding specialties in Cardiac Sonography, Abdomen, and OB/Gynecology and a current member of the American Society of Echocardiography. Since 2000, I have been a dedicated Cardiac Sonographer with Shared Imaging Services, serving Southwest Wisconsin. I very much enjoy working with geriatric patients and performing stress echocardiograms here in our rural communities. It is a pleasure to work with all of the hospitals that Shared Imaging serves.



Lisa Bortz, RDCS – Cardiac Echo Technologist

My name is Lisa Bortz and I have been with Shared Imaging Services for the past 17 years. I have been performing Echocardiograms for 25 years. I received my Echocardiogram education at the Wm. S. Middleton VA Hospital in Madison, WI. The current hospitals I provide Echocardiogram services to include Moundview Memorial in Friendship, Sauk Prairie Healthcare in Prairie du Sac, and Stoughton.



MRI Technologists:


Deb Crook RT (R)(M)(MR) Lead MRI Technologist – St. Clare Imaging Services

I am the manager of St. Clare Imaging, our joint venture MRI service at St. Clare Hospital in Baraboo, WI. I attended UW-LaCrosse, then Western Wisconsin Technical College where I got my degree in Radiography. I spent 2 years as an xray technologist for Physicians Plus before joining Turville Bay MRI Centers in Madison, WI. I worked for Turville Bay for 13 years, taking care of patients at our outpatient location, Meriter Hospital and St. Mary’s Hospital MRI Suites. In 2003 I started working at St. Clare Hospital getting the new in house MRI up and going, officially becoming a Shared Imaging employee in July, 2007. I have 21 years of MRI experience, am a registered MRI technologist, ARRT registered and a member of SMRT. I really enjoy my job as an MRI technologist, as it is an ever changing and challenging healthcare modality.



Kay Radewan (R)MR) MRI Technologist – St. Clare Imaging Services

I attended Madison Area Technical College and received my Associates Degree in Radiography in 1999. After a year of working in general x-ray, I became an MRI tech with Shared Medical Services where I was a mobile MRI Tech for 2 years. In 2002, I began working at Turville Bay MRI in Madison where I stayed until 2009. From 2009 until 2014, I worked at Reedsburg Area Medical Center. Finally, I joined Shared Imaging Service in June 2014 working at St. Clare Imaging, our joint venture MRI service at St. Clare Hospital in Baraboo, WI. Throughout my career, I have had several ties to St. Clare, as a student, a mobile MRI Tech and through Turville Bay, and I am happy to be back again to stay!! I bring 15 years of MRI experience to the team at St. Clare. I am a state registered MRI technologist, ARRT registered and a member of SMRT. I enjoy every aspect of working in MRI, it is an ever-changing modality that allows me to be continuously learning. My favorite part of being an MRI Tech is working with patients and providing them with a positive experience while receiving the highest quality exam!