Please allow 24 business hours (Monday-Friday) for our office to respond to your message. Messages sent over the weekend or on holidays will not be viewed until the next business day.

If you are experiencing a medical emergency, please dial 911 or go to the nearest hospital.

North Texas Diabetes & Endocrinology

Plano Office

Drs. Jane Ko and Leo Jeng


4100 W. 15th Street, Suite 202,
Plano, TX 75093


Irving Office

Dr. Rajiv Dattatreya


2021 North MacArthur Boulevard, Suite 225,
Irving, TX 75061