William Hamstra, DO, General Surgery, Stockton, CA, Kaiser Permanente Manteca Medical Center


General Surgery Stockton, CA

Laparoscopic, Robotic, and General Surgery

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  • Our care philosophy as an Osteopathic practice is to provide comprehensive care, integrating the mind and body, in order to alleviate pain, increase wellness, and improve health. Rather than focusing exclusively on the disease and its symptoms, we believe in treating the whole person to ensure high quality, total care of the patient.

    Dr. Hamstra cares for patients with a wide range of conditions, including benign diseases of abdominal organs, such as Gallbladder disease, Appendicitis, Hernias, Inflammatory Bowel Disease, Diverticulitis, & Hemorrhoids, as well as those with Cancer of the skin, Thyroid, Breast, Intestines/Colon/Anus, and Soft Tissues. He also cares for patients with lipomas, cysts, skin tags, and wound care surgery.

    Dr. Hamstra specializes in both laparoscopic and robotic techniques. Use of the laparoscope and the robot increase patient satisfaction by minimizing hospital stays and recovery time. These minimally invasive techniques aim to reduce scarring and pain associated with otherwise disfiguring and painful results.

Education & Training

  • Riverside Osteopathic Hospital - Henry Ford Health SystemResidency, General Surgery, 1987 - 1991
  • Oklahoma State University College of Osteopathic Medicine
    Oklahoma State University College of Osteopathic MedicineClass of 1986

Certifications & Licensure

  • CA State Medical License
    CA State License 1987 - 2022
  • AOA Board of Surgery Surgery

Awards, Honors, & Recognition

  • CMS Meaningful Use Stage 1 Certification Practice Fusion EHR, Practice Fusion, Inc., 2012-2013

Publications & Presentations


Professional Memberships

Hospital Affiliations