Trinity Health Richard J. Lacks Sr. Cancer Center
Hours
Coming Spring 2026: Welcoming Two New Gynecologic Oncology Providers
Welcoming Leigh Seamon, DO, April 2026
We’re pleased to announce that Dr. Leigh Seamon, a fellowship‑trained gynecologic oncologist, will be joining our practice in April 2026. Dr. Seamon brings more than 20 years of experience in obstetrics and gynecology, gynecologic oncology, and academic medicine. Her clinical interests span the full spectrum of gynecologic cancers, advanced surgical care, and evidence‑based treatment for complex conditions.
Welcoming Christopher Hummel, DO, May 2026
We are also excited to welcome Dr. Christopher E. Hummel, a board‑certified gynecologic oncologist, who will join the practice in May 2026. Dr. Hummel specializes in the diagnosis and surgical management of gynecologic cancers, including ovarian, uterine, cervical, and vulvar cancers. His expertise includes minimally invasive and robotic surgical techniques, allowing for advanced, patient‑centered treatment options.
Together, Drs. Seamon and Hummel will enhance our commitment to providing comprehensive, high‑quality gynecologic oncology care to our communities.
For more information, please call (616) 685‑5600.
Powerful Cancer-Fighting Tools and Expertise
Cancer is a difficult journey. That is why Trinity Health Richard J. Lacks Sr. Cancer Center is doing everything we can to support you and your loved ones. We have assembled the region's most experienced team of cancer experts and some of the best technology in this state-of-the-art facility. Patient-centered care is provided by a multidisciplinary team of board-certified physician, genetic counselors, dieticians, nurse navigators, oncology social workers and holistic practitioners for a comprehensive approach to treatment planning.
Programs and clinics:
- Breast Care and Breast Surgery
- Cancer Screenings
- Genetic Counseling
- Gynecologic Oncology
- Infusion Services
- Medical Oncology
- Radiation Oncology
- Surgical Oncology
- Thoracic Surgery
- Research and Clinical Trials
Our Accreditations
Commission on Cancer Accredited Program
Trinity Health Richard J. Lacks Sr. Cancer Center has met the Commission on Cancer’s standards and has been accredited by the Commission on Cancer, a Quality Program of the American College of Surgeons.
The Cancer Network of West Michigan
The Cancer Network of West Michigan, a joint venture between Trinity Health and University of Michigan Health-West, leverages the combined resources and capabilities of the two award-winning West Michigan health systems and Michigan Medicine, the academic medical center of the University of Michigan.


