John Sealy

Patient CareEndocrinology

Our Mission

To develop excellence in the field of prevention of diabetes and its complications to provide our community with the most advanced treatment solutions and to train future generations of clinicians/scientists.


The main objective of Stark Diabetes Center is to identify the optimal approach to decrease risk for diabetes and its complications in the multiethnic population of Texas and ultimately provide plans to reduce the burden of obesity, diabetes and its complications. The Stark Diabetes Center provides state of the art clinical care, research and education in the area of disease conditions and syndromes including but not limited to diabetes, dyslipidemia and obesity, as well as the metabolic syndrome.

Stark Diabetes Center clinics support patients' referral for community physicians.

The physicians at the Stark Diabetes Clinic are board certified in Endocrinology and Metabolism and take care of patients with all endocrine diseases besides diabetes & hyperlipidemia.        


  • Stark Diabetes Clinic at Victory Lakes Multispecialty Center

    2660 Gulf Freeway South, Ste. 9
    League City, Texas, 77573-1395

    Phone: 832.505.2300
    Fax: 281.337.0805

    Hours of Operation: Mon-Fri, 8am-5pm
  • UTMB Health Endocrinology/Stark Diabetes, Angleton

    146 E. Hospital Dr. Suite 208
    Angleton, TX 77515

    Phone: 979.848.9110
    Fax: 281.337.0805
  • Angleton Danbury Clinic

    146 E. Hospital Dr., Ste. 102
    Angleton, Texas 77515

    Phone: 888.252.8212
    Fax: 409.938.1479

    Next to Angleton-Danbury Hospital
  • Primary Care Pavilion (PCP) - Endocrinology

    400 Harborside Dr., Ste. 100
    Mail Route 1385 
    Galveston, TX 77555-1385

    Fax: 409.747.7014

    Hours of Operation: Mon-Fri, 8am-5pm
  • UTMB Health Endocrinology/Stark Diabetes, Town Center

    2660 Gulf Freeway South Entrance B
    League City, TX 77573

    Phone: 832.505.2300
    Fax: 281.337.0805