About us

Meet the staff at Carolina Breast Imaging Specialists


Bruce F. Schroeder, MD
Medical Director, C.E.O.

Dr. Schroeder has been Eastern North Carolina’s most experienced breast imaging expert since 1996. In addition to his dedication to his patients, he participates in teaching and research through his appointments at the Brody School of Medicine and UNC Chapel Hill. He has been nationally and internationally recognized as a leader in breast imaging. Read More»

Susan J. Barnes, MD

Dr. Susan Barnes, a fellowship trained specialist in the field of mammography has joined our clinical team here at CBIS. Prior to joining our team, Dr. Barnes worked many years with Dr. Schroeder at Eastern Radiologists.  Dr. Barnes has been a faculty member and Chief Resident at St. Barnabas Medical Center.  She has been published and has done a series of lectures on the subject of breast cancer detection and mammography. Read More »

Mark J. Hass, MD

Dr. Hass is fellowship trained in breast imaging and intervention with 12 years of experience in general radiology. He contains a great blend of passion with a top-notch education to provide exceptional care for every patient.  Dr. Hass prides himself on taking the time to provide outstanding patient care through being an excellent communicator and leader with an appetite for continuous learning in order to provide the best care possible.


Jana Gurganus, RT(R)(M)
Mammography Technologist

Jana earned her Associate Degree in Radiology at Pitt Technical Institute in 1978 followed by her Mammography Certification in 1991.  Prior to joining Carolina Breast Imaging, Jana worked as a tech for 35 years at Eastern Radiologists Breast Imaging Center. Applying a strong professional expertise as it relates to screening, diagnostic and follow-up, breast imaging has been her goal to help save her patient’s lives from breast cancer.

Katie Brown Davis, RT(R)(M)(BS)
Mammography and Breast Ultrasound Technologist

Katie has been a radiologic technologist specializing in mammography since 2013.  Following graduation she worked at Eastern Radiologists Breast Imaging Center where she gained experience in 3D screening mammography, diagnostic mammography and breast biopsies. Katie is passionate about the difference she makes in every patient’s experience. She strives to provide excellent patient care while delivering high quality imaging. In 2016 she became certified in Breast Ultrasound.

Emily Griffies, RT(R)(M)
Mammography Technologist

Emily has been a radiologic technologist since 2015.  She graduated from the Pitt Community College mammography technologist program and worked at Vidant Medical Center until joining the CBIS team in 2017.

Khristi Pippin, RT(R)(M)
Mammography Technologist

Khristi is from Bailey NC and joined CBIS in February 2018. She is the lead mammography technologist in our Wilson office.

Kristen Barnes Grinstead, RT(R)(M)
Mammography Technologist

Kristen joined CBIS in September 2018. She will is the lead mammography technologist in our Goldsboro office.

Wanda Gilland, RT(R)(M)
Mammography Technologist

Wanda is one of the most experienced mammography technologists in Eastern North Carolina, working exclusively in the field for more than 20 years. After moving back home to Grifton from Wilmington where she worked for most of her career she joined Eastern Radiologists in 2004. After retiring from Eastern Radiologists, she rejoined the team at Carolina Breast Imaging Specialists in 2015 where she works part time as a mammography technologist. She has a loyal following of patients who appreciate her warmth and friendliness.

Becky Testerink, RT(R)(M)(BS)
Mammography Technologist


Sharon A. Mangan, M.D.
Chief Operating Officer

Sarah Diversi, BS,MS
Practice Manager

Sarah Diversi joined CBIS in 2016. She has a Master of Science in business education from Southern New Hampshire University and Bachelors in science in finance management and accounting from Franklin Pierce College.


Sheila Jackson
Quality Assurance

Melissa (Missy) Schmid
Office Manager (CBIS Wilson)

Tasha Malette
Physician Support, Information Technology

Tonya Witherington

Amber Drach

Angela Gardner

Rhonda Lee
Reception, Goldsboro

Allen Dixon
Information Technology

Carrie Hudson