Dr. Joseph J. Ernst , MD


(618) 798-8410

Gateway Medical Group
2100 Madison Ave Ste 201
Granite City, IL 62040


Dr. Ernst is a Valley native and has been licensed since 1979. He has been board certified in Urology since 1986 and has been practicing Urology in Harlingen since 1994. His education aside from McAllen High School includes a year at Pan American University (now the University of Texas Pan American) and he received a Bachelor of Arts with highest honors from the University of Texas at Austin in 1975. He attended medical school at the University of Texas Health Science Center at San Antonio. After his internship in surgery at Parkland Memorial Hospital in Dallas, Texas, he entered a Urology residency at Brook Army Medical Center. After his residency, he remained in the army for several years and was Chief of Urology at Darnall Army Community Hospital. During his army career, he was stationed in Saudi Arabia during Desert Storm and was awarded several medals including the Meritorious Service Medal, Army Commendation Medal and Army Achievement Medal in addition to service medals for the war in Southeast Asia. He is a member of the American Urology Association, American Medical Association and the American Association of Clinical Urologists. His interests outside of medicine include his family (he is a grandfather of two), classical music and composing, ancient coin collecting and computing.

Gender: N/A

Years in Practice: 40 Years

Languages Spoken: English and Spanish

Education & Training

Medical School: The University Of Texas School Of Medicine At San Antonio

Graduation Date: in 1979

Specialties & Hospital Affiliations

Hospital Affiliations:

  • Gateway Regional Medical Center

Specialties: Urology

Health Insurance and Affiliations

  • Aetna Choice POS II
  • Aetna HMO
  • Aetna Managed Choice POS Open Access
  • Aetna Signature Administrators PPO
  • Anthem Blue Access PPO
  • Anthem Blue Preferred HMO
  • Anthem Blue Preferred Plus POS
  • Anthem MO Blue Preferred Options
  • BCBS Blue Card PPO
  • CIGNA Open Access Plus
  • Coventry MO HMO POS
  • Coventry MO PPO
  • Health Alliance HMO/POS
  • Health Alliance IL IA Public Mrktplace QHP Provider Directory
  • Health Alliance PPO
  • HealthLink PPO
  • Humana Choice POS
  • Humana ChoiceCare Network PPO
  • Multiplan PPO
  • UHC Choice Plus POS
  • UHC Navigate HMO
  • UHC Navigate POS
  • UHC Options PPO

Dr. Ernst's Office Information

Fax: ( ,6) 618-7988
Website: Gatewaymedicalgroup.net
Accepting New Patients: Yes
Medicare Accepted: Yes
Medicaid Accepted: Yes

Office Hours:

Mon8:00 AM-4:30 PM
Tue8:00 AM-4:30 PM
Wed8:00 AM-4:30 PM
Thu8:00 AM-4:30 PM
Fri8:00 AM-4:30 PM