Meet the Team

/Meet the Team

Our Highly Skilled, Friendly Specialists Are Here For You

Here at WICE, we believe in putting patients first. Our expert staff provides accurate results in a comfortable, inviting setting. Explore our specialists’ bios to meet our team.

Wisconsin Imaging Center of Excellence

Physician Organization


The IPN mission is to develop, protect and enhance independent physician practice.  IPN is a physician led organization that promotes high-quality healthcare that is focused on providing the necessary tools, resources and expertise to maintain cost efficient practices resulting in a value driven satisfying experience for its patients.

James Mazzulla MD


Dr. Mazzulla is a graduate of Northwestern University school of medicine. He completed an internal medicine residency at Hennepin County Medical Center in Minneapolis Minnesota and Mount Sinai Medical Center in Milwaukee Wisconsin. He specializes in general internal medicine and geriatrics. He is a member of the Independent Physicians of Wisconsin. He is also a member of the Independent Physician Network. He strongly believes in independent medicine. He believes that keeping physicians independent serves the needs of patients the best.

Jeffrey Niezgoda MD


Dr. Jeffrey A. Niezgoda is a 1981 graduate of the United States Air Force Academy and received his Medical Degree from the Uniformed Services University of Health Science, Bethesda, Maryland, in 1985. Dr. Niezgoda has dedicated his professional life to optimizing outcomes and promoting excellence in the care of patients with compromised wound healing. For over 30 years he has provided direct patient care and supervision of multiple medical facilities focused on wound and hyperbaric services. He is the President of the American Professional Wound Care Association and Past President of the American College of Hyperbaric Medicine. He is the Founder and President Emeritus of AZH Wound & Hyperbaric Center MKE. Advancing the Zenith of Healthcare is a novel company established by Dr. Niezgoda in 2017, dedicated to excellence in wound, hyperbaric, vascular and regenerative clinical services. For 16 years (1998-2013) Dr. Niezgoda held the position of Medical Director of the Center for Comprehensive Wound Care and Hyperbaric Oxygen Therapy at St. Luke’s Medical Center in Milwaukee Wisconsin and served as the President and Chief Medical Officer of Hyperbaric & Wound Care Associates, a multi-physician group providing services to wound and hyperbaric patients in Wisconsin as well as internationally. Dr. Niezgoda has extensive experience in clinical research and has been instrumental in the development and commercialization of several medical devices and technologies. He has served as a consultant to industry as well as to CMS and the FDA. Dr. Niezgoda is also the President and Chief Medical Officer of WebCME, an international educational company with a mission to provide wound care and hyperbaric education over the internet. Over the past 10 years, WebCME has trained over five thousand healthcare providers.

Kenny Yoo, MD

Interventional Radiologist

Dr. Kenny Yoo, is an Interventional Radiologist at WICE. He has 28 years of experience reading Musculoskeletal images. Dr. Yoo has expertise in interpreting diagnostic studies for all modalities covering all specialties.

Dr. Yoo is Board certified by the American Board of Radiology and holds certifications in vascular and interventional radiology. He received his medical degree from Rush University and completed his internship at Malden Hospital. Dr. Yoo completed dual residencies in nuclear medicine and diagnostic radiology and completed his interventional radiology fellowship at Strong Memorial Hospital.

Dr. Yoo’s undergraduate academic credentials, include a cum laude bachelor’s degree in biology from the University of Rochester and another in psychology from the University of Illinois at Chicago. Dr. Yoo previously treated patients at several Chicago-area hospitals.

His contributions to medical research include studies published in the Journal of Nuclear Medicine and the Journal of Pediatric Surgery. Dr. Yoo is licensed in Wisconsin and is a member of the Society of Interventional Radiology and the American College of Radiology. Dr. Yoo continues to advance patient care and related imaging research.

Jeffery Choh, MD

Interventional Radiologist

Dr. Jeffery Choh is an Interventional Radiologist at WICE and has 32 years of clinical experience accurately evaluating medical imaging for patient care. He received his medical degree from Ohio State University College of Medicine. Dr. Choh completed his residency in diagnostic radiology at University of Illinois College of Medicine at Chicago/Michael Reese Hospital. He completed his fellowship at Cleveland Clinic in Vascular & Interventional Radiology.

Dr. Choh is Board certified in Diagnostic Radiology and Vascular & Interventional Radiology by the American Board of Radiology. He is also an Associate Clinical Professor in the Department of Diagnostic Radiology. Dr. Choh is dedicated to patient care, collaborates closely with clinicians, and has a rich clinical background working with various medical centers in Illinois.

Dr. Choh is an active member of professional organizations and has contributed to the academic community through publications and research presentations. He is licensed in Wisconsin, provides cutting-edge imaging and interventional radiology services that specialize in minimally invasive techniques using advanced technologies.

Tami Carrillo, MD

Interventional Radiologist

Dr. Tami Carrillo is an Interventional Radiologist who has 14 years of experience reading Musculoskeletal studies. She also serves as the Medical Director for WICE. Dr. Carrillo is an expert in minimally invasive procedures as well as interpretation of diagnostic imaging for all modalities.

Certified in Interventional Radiology/Diagnostic Radiology by the American Board of Radiology, Dr. Carrillo is committed to providing quality patient care and education.

Her educational journey includes a biology degree from Evangel University, a Master of Urban Planning and Public Policy from the University of Illinois, and a Doctor of Medicine degree from the University of Illinois College of Medicine. She completed an internal medicine internship at Loyola University Health System, followed by a Diagnostic Radiology residency and Vascular/Interventional Radiology fellowship at the University of Illinois Chicago Hospital.

Licensed in Illinois and Wisconsin, Dr. Carrillo actively contributes to clinical research and is affiliated with professional organizations, including the Society of Interventional Radiology and the Radiological Society of North America. She has published in many medical journals and serves as a reviewer of the Journal for Vascular and Interventional Radiology.

Peter Ackermann

VP of Finance & Operations

In March of 2021, Peter Ackermann, our new Vice President of Finance and Operations, joined Wisconsin Imaging Center of Excellence. Over the last 30 years Peter has gained a wealth of finance and accounting management experience working with a variety of professional service organizations. He is familiar with the outstanding service goals WICE strives to achieve on a regular basis and brings that mindset to the job responsibilities he performs for the practice.

Peter also works part-time as the Chief Financial Officer for EmOpti, Inc. His prior positions include Vice President of Finance and Operations for Milwaukee Orthopaedic Group, Ltd and Controller for Infinity HealthCare, Inc.

Mr. Ackermann received a Bachelor of Science with a major in Business Administration from UW – Stevens Point and Master of Business Administration with an emphasis in Accounting and Finance from Keller Graduate School of Management.

Peter, and his wife Joan, are residents of Whitefish Bay and he enjoys several recreational activities including music, bicycle riding/racing, golf, backpacking and snowshoeing.

Cecilia Miller

Office Manager

Cecilia Miller is a Marquette graduate with a background in physical therapy. She joined WICE in the summer of 2021, to oversee daily clinic operations and assist with patient services.  Cecilia is excited to be part of a locally owned company whose mission is to provide access to state of the art imaging equipment at a reasonable cost for the Milwaukee area. “Being an independent facility, we are in a unique position to work closely with patients and their referring doctors to make sure questions are answered and exams are personalized, while at the same time being affordable”, she comments. In her free time, Cecilia likes to walk her dog, attend different festivals across Milwaukee and have game nights with friends.

Lydia Mejia

Lead Intake Specialist

After completing her medical assistant certificate, Lydia worked in several medical offices before joining WICE in the spring of 2021. A pivotal member of the team, Lydia is at the front end working on prior authorizations and scheduling appointments in a timely manner. Speaking Spanish and English, Lydia takes patients through each step of registration, saying “I strongly believe patient care is important, that’s why I strive to provide our patients with the best service they deserve”. Lydia is a mother of four boys: Juan, Leo, Adan and Cristian. When she is away from the office she enjoys spending quality time with her family. She also enjoys attending classic car show events, biking and reading. 

Jeff Blawat

Meet the Team

MRI & Radiology Technician

Jeff Blawat is a MRI/Bone Density/Radiologic Technologist at Wisconsin Imaging Center of Excellence. Jeff is hospital trained with over 20 years of experience. Additionally, he is board certified by the American College of Radiology and a Graduate of Columbia-St. Mary’s School of Radiologic Technologists. He has a passion for patient care and for medical technology, bringing both exceptional experience and high quality imaging to our patients.

Cheryl Knippel

Meet the Team

MRI & Radiology Technician

Cheryl Knippel has been in diagnostic imaging for 25+ years. Certified in MRI and radiologic technology, she comes to WICE from a pediatric hospital. Her background allows her to proficiently scan neonates to adults. Cheryl enjoys the teamwork developed between her and coworkers, which in turn, has created a flexible and caring environment for patients. From walk-in appointments to difficult cases, Cheryl expressed “together we excel in patient satisfaction and image quality”. Outside of the clinic, Cheryl enjoys cooking, gardening, riding her motorcycle and spending time with her grandkids.

Donna LaCoursiere

Meet the Team

CT & Radiology Technician

Donna LaCoursiere is a registered Radiologic technologist and board certified in computed tomography, also known as CT scan. In addition to her specialty of CT, Donna has spent time working on independent  workstations creating 2D and 3D reformats, taking standard radiographic images, and performing DEXA bone density exams.  With her 30 years experience in the field, Donna has enjoyed the many different aspects diagnostic imaging has to offer, saying “Technology has come a long way and is ever changing still today. It is exciting to be part of this continual growth and to help people along the way.” In her free time, Donna enjoys spending time with friends and family.

Tim Bell

Meet the Team

Ultrasound Sonographer

Tim Bell is an Ultrasonographer at Wisconsin Imaging Center of Excellence. Tim has over 26 years of hospital based experience. He is board certified by the American Registry of Diagnostic Sonography and a graduate of Columbia-St Mary’s school of Ultrasonography.  He brings experience and passion for patient care to all of our patients.