Dr. El Hayek works in O Fallon, IL and 2 other locations and specializes in Endocrinology, Diabetes & Metabolism. Dr. El Hayek is affiliated with Missouri Baptist Medical Center.


Years Experience: Not Available

Procedures Performed

Dr. El Hayek's Specialties

Dr. El Hayek's Education & Training

Medical School
Not Available


  • Overall Rating

  • Rate
    Explains conditions & treatments

  • Rate
    Takes time to answer my questions

  • Rate
    Provides follow-up as needed

Dr. El Hayek's Accepted Insurance

Please verify insurance information directly with your doctor's office as it may change frequently.

Insurance Plans

  • Aetna Choice POS II
  • Aetna HMO
  • Aetna Managed Choice POS Open Access
  • Aetna Signature Administrators PPO
  • CIGNA LocalPlus

Dr. El Hayek's Office Information & Appointments

This physician has multiple office locations. See Office Information for details.


HSHS Medical Group
HSHS Medical Group Endocrinology

775 Sunset Blvd
O Fallon, IL 62269

Get Directions

Tel: (618) 589-9051

Fax: (618) 589-9055

Practice Website: hshsmedicalgroup.org

Accepting New Patients: Yes

Medicare Accepted: Yes

Medicaid Accepted: Yes

M 9:00 AM - 5:00 PM
T 9:00 AM - 5:00 PM
W 9:00 AM - 5:00 PM
T 9:00 AM - 5:00 PM
F 9:00 AM - 5:00 PM
S Closed
S Closed

Other Physicians in Dr. El Hayek's Practice

Hospital Affiliations