I’ve been cared for by Princeton Internal Medicine for the last 10 years by Dr. Timothy Sass. Under his care several issues were identified early and addressed. Dr. Sass’ care is top notch his personality and his manner demonstrate old school thoroughness with cutting edge understanding of the newest medical information. His thorough examination is executed flawlessly and dotted with statistics, stories and occasional humor. The office staff is friendly and good with the management of my records. They always call me back to confirm appointments.