Lehigh Valley's Most Innovative Colorectal Practice

About Our Practice

CARI, the Colon And Rectal Institute of the Lehigh Valley, is a full service colorectal health practice dedicated to the diagnosis and treatment of colon diseases, anorectal complaints, and cancer prevention. Our group has been serving patients in the Lehigh Valley for over 40 years and is committed to the quality of care in our Specialty, beginning with the availability of appointments the same or next day of request. Our Experienced Staff is committed to patient convenience by timely scheduling of appointments and procedures at several area hospitals and outpatient facilities, including Lehigh Valley, St. Luke’s and Sacred Heart. We respect the importance of the medical record and make special efforts to communicate clinical information to both the patient and family physician. We participate in nearly all insurance programs and help with the processing of referrals in insurance claims.

No insurance? No problem.

Our office offers an initial consultation fee of only $169.00

Plus, all patients that do not have insurance will qualify for rate discounts on all CARI procedures.

Colo-Rectal Experts

The surgeons at CARI are board-certified in colon-rectal surgery. Each physician has completed several years of specialty training and is certified by both the American Board of Colon and Rectal Surgery and the American Board of Surgery.


We provide the full spectrum of colorectal surgical care but our services extend beyond the operating room. We pledge to treat you with dignity and respect, to communicate with you clearly and honestly, to protect your confidentiality, and to earn your trust.


Members of our practice have held the position of Chief of the Colon and Rectal Division and are involved with teaching Colon and Rectal Residents at Lehigh Valley Hospital.


Our practice is involved in research and education and has received national and international awards for our presentations and research.


Medical Team


Dr. David Bub, MD

Board Certified Surgeon


Board Certified in General Surgery in 2002, and in Colon and Rectal Surgery in 2003.


Tara Gerber-Mehta, CRNP

Certified Registered Nurse Practicioner


Masters of Science in Nursing 2004 with BS in Nursing from Moravian College 2009.