Northwestern Medicine

General Surgery at Northwestern Medicine Regional Medical Group

The general surgeons at Northwestern Medicine Regional Medical Group are committed to providing excellent surgical care. In addition, they take the time to discuss your options and answer your questions, encouraging you to take an active role in your treatment. You can take comfort in the expert care, compassion and communication you’ll receive throughout your surgical experience.

Advanced Clinical Expertise with a Responsive Approach

You have a choice for your surgical needs. Many of our patients are referred to Northwestern Medicine Regional Medical Group's general surgeons by patients who have been highly satisfied with our level of professionalism and clinical expertise. Choose the surgeons who offer experience, compassion and the most advanced techniques and procedures, including da Vinci® Surgical System robotic surgery and laparoscopic surgery.

  • Our surgeons are board certified and/or board-eligible by the American Board of Surgery.
  • We embrace a multidisciplinary approach. Our relationships, communication and collaboration with your primary care physician and physicians in other specialties allow us to expedite follow-up appointments for your peace of mind.
  • The average appointment is scheduled within five days, and patients with urgent matters are seen the same day.
  • We honor a number of insurance plans.

Surgical Treatment for a Range of Disorders

General surgical procedures include treatment of colorectal disorders, hernias, gallbladder disease, weight loss, gastrointestinal and esophageal disorders and trauma. Many surgeries are performed by laparoscopy to limit postoperative pain and shorten recovery time. Some surgeries can even be performed on an outpatient basis.

Here are some of the many surgeries offered:

  • Benign and malignant tumors of the digestive systems
  • Colon/rectal disorders and cancer
  • da Vinci® Surgical System robotic assisted surgery
  • Endocrine (thyroid, parathyroid, pancreas, adrenal)
  • Gallbladder/liver
  • GERD
  • Hernias
  • Lymphoid surgery
  • Skin (lesions and melanoma)
  • Spleen
  • Stomach
  • Trauma surgery
  • Weight loss (bariatric surgery, gastric bypass, gastric banding)

Meet Our Care Team

Anthony Altimari, MD, FACS
Dr. Altimari received his medical degree from The Chicago Medical School and completed his general surgery residency at Loyola University Medical Center. He has been in practice since 1988. Dr. Altimari is certified by the American Board of Surgery and is a Fellow of the American College of Surgeons. His practice scope includes breast disease, thyroid disorders, colon and rectal surgery, gallbladder and hernia surgery and melanoma. He has special interests in gastroesophageal reflux disease (GERD), hiatal hernia, advanced laparoscopic surgery, and cancer surgery. Dr. Altimari has been published in national literature and teaches courses in advanced laparoscopic surgery. Dr. Altimari has served as Department of Surgery Chairman and Director of the Trauma Department at Northwestern Medicine Central DuPage Hospital and has been appointed to the Board of Directors. He is presently on the Medical Executive Committee and serves as the Vice President of the Medical Staff.

Matthew Pittman, MD
Dr. Pittman received his medical degree from Georgetown University Medical School, and completed a residency in general surgery at Loyola University Medical Center. He completed a fellowship in Advanced GI/MIS and bariatric surgery at The Ohio State University. Dr. Pittman is a member of the American College of Surgeons, the American Society for Metabolic and Bariatric Surgery, and the Society for American Gastrointestinal and Endoscopic Surgeons. His special interests include bariatric surgery, advanced foregut reflux surgery and advanced hernia surgery.

Yolanda I. Chang, MD
Dr. Chang received her medical degree and completed her residency in general surgery at University of Illinois College of Medicine at Peoria. Dr. Chang’s clinical interests focus on a variety of general surgery procedures including advanced laparoscopy surgery, rectal and colon surgery, and gallbladder and hernia surgery. She also performs a number of procedures with the da Vinci® Surgical System. Dr. Chang is proficient in Spanish and Mandarin Chinese. Dr. Chang is board certified by the American Board of Surgery.

David Klem, MD, FACS
Dr. Klem received his medical degree from Rush Medical College in Chicago. In 1992, he was awarded Surgical Intern of the Year, and in 1996, completed his general surgery residency at Rush-Presbyterian-St. Luke's Medical Center in Chicago. Dr. Klem is certified by the American Board of Surgery and is a Fellow of the American College of Surgeons. He is interested in the surgical management of obesity and advanced laparoscopic surgeries including hernia, gallbladder, and colon/rectal procedures. He is certified as a da Vinci® robotic surgeon including single site robotic assisted surgery. He is the Medical Director of the Bariatric Treatment Center at Northwestern Medicine Central DuPage Hospital. Dr. Klem's work has been published in the national literature. He serves as the Medical Director of Surgery and Chairman of the Peer Review Committee at Central DuPage Hospital (CDH).

Dean P. Shoener, MD, FACS
Dr. Shoener received his medical degree from University of Iowa in Iowa City, Iowa, and completed his residency in general surgery at Michigan State University in Grand Rapids, Michigan. He has been in practice since 1999. He is certified by the American Board of Surgery and is a Fellow of the American College of Surgeons. He is also a member of the American Society of Breast Surgeons. His clinical interests include advanced laparoscopic surgery, robotic surgery, colon and rectal surgery, hernia surgery, breast surgery, thyroid surgery, and gallbladder surgery. Dr. Shoener is currently part of the medical staff leadership at Northwestern Medicine Delnor Hospital. He is past president of the Kane County Medical Society. He is currently on the cancer, trauma, credentials, operating room planning, surgical site infection, blood bank and medical executive committees at Delnor Hospital. He is Clinical Associate Professor at Finch University Health Sciences and Midwestern University Physician Assistant Programs.

Thomas W. Tomasik, MD, FACS
Dr. Tomasik received his medical degree from Loyola University of Chicago Stritch School of Medicine and completed his residency in general surgery at Loyola University Medical Center. He has been in practice since 1990. Dr. Tomasik practices the full scope of general surgery with expertise in advanced laparoscopic surgeries including gallbladder, hernia, colon surgery, thyroid disorders, breast disorders and rectal disorders. A fellow of the American College of Surgeons, Dr. Tomasik serves as the Trauma Medical Director at Northwestern Medicine Central DuPage Hospital and is certified by the American Board of Surgery.

Request an Appointment Online

When you choose a Northwestern Medicine Regional Medical Group physician, you will be selecting a professional from one of the nation's top academic medical centers where patients come first.

Click the button below to complete the online appointment request form.

If this is a medical emergency, please call 911 or go immediately to the nearest emergency department. For urgent visits, please note our convenient care locations.


Locations

To learn more or schedule an appointment with a General Surgeon, please call Northwestern Medicine Regional Medical Group today at 630.668.0833. TTY for the hearing impaired 630.933.4833.

Geneva
351 Delnor Drive
Suite 406
Geneva, IL 60134
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Wheaton
7 Blanchard Circle
Suite 104
Wheaton, IL 60189
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