Specialist in Internal Medicine
with the Subspecialty of Gastroenterology
Welcome to the Internet location of Dr. Mark Y. Johnson. You may use this site to to learn information about the practice or to learn about various health and medical conditions. All data in this site are to be used solely for informational purposes. You should always consult with your health care professional team to determine your best personal course of care.
We accept most major insurance plans.
Please call or e-mail the office in advance of your next appointment with any questions you may have.
OFFICE ADDRESS 480 Fourth Avenue, Suite 506 Chula Vista, California 91910