Casey Younkin, MD

Obstetrician and Gynecologist
Obstetrics and Gynecology
Accepting new patients
Call for an appointment

    About me

    • Board Certified Obstetrics and Gynecology
    • Certified with the International Society of Clinical Densitometry
    • Specialties:
      • Obstetrical Care of the Low and High Risk Patient
      • Outpatient Surgery
      • Office Gynecology
      • Postmenopausal Bone Loss
      • Minimally Invasive Surgery
    • Clinic Locations:


    Remote video URL



    Education & training

    Associate Professor, Department of Obstetrics and Gynecology
    Board Certifications
    Obstetrics and Gynecology
    Medical School
    Washington University School of Medicine, St. Louis, MO
    Barnes Hospital, St. Louis, MO - Obstetrics and Gynecology

    Clinical locations


    SIU OB-GYN at HSHS St. John's Health Center

    1100 Lincolnshire Blvd. Springfield, IL 62703 Suite 200
    Mon - Fri: 8:00 am-4:30 pm

    SIU OB-GYN at HSHS St. Francis Hospital

    1215 Franciscan Dr. Litchfield, IL 62056 4th Floor

    Hospital privileges

    • HSHS St. Francis Hospital, Litchfield IL
    • HSHS St. John's Hospital, Springfield, IL
    • Memorial Health, Springfield IL


    Research Interests
    Women's Health, Osteoporosis, and Menopause

    Clinical trials

    Obstetrics and Gynecology

    Biomarkers for Endometrial and Ovarian Cancer

    Active recruiting

    PURPOSE: This is a biological sample collection study aimed at developing an early diagnostic tool for endometrial and ovarian cancer. The investigators are studying the relationship between estrogen driven gynecological cancers, inflammation and the microbiome. Patients who have been diagnosed with endometrial cancer or undergo presurgical evaluation for suspicion of ovarian cancer who are scheduled for a hysterectomy, bilateral oophorectomy and/or salpingectomy are eligible. Control patients undergoing gynecological surgery for benign indications are also being recruited.