Lone Star Oncology and American Oncology Network Welcome New Board-Certified Physician to Care Team

April 29, 2024
Dr. Sabbagh brings over 20 years of experience in treating various cancer types.

GEORGETOWN, Texas, April 29, 2024 –  Lone Star Oncology and American Oncology Network (AON) (Nasdaq: AONC), a rapidly growing national network of community-based oncology practices, is pleased to announce M. Hassan Sabbagh, MD, has joined the practice’s physician team and is accepting new patients.

Dr. Sabbagh is a Board-certified medical oncologist and hematologist who has been practicing for over 20 years in Texas. He received his Doctor of Medicine degree from Damascus University.

M. Hassan Sabbagh, MDUpon graduating, he completed an internal medicine internship and residency at St. Barnabas Hospital in the Bronx, New York. He then finished a hematology-oncology fellowship at UPMC Hillman Cancer Center in Pittsburgh, Pennsylvania.

“It is an honor to join Dr. Shimkus at Lone Star Oncology,” said Dr. Sabbagh. “My main commitment is to the well-being of my patients, and I am eager to contribute my skills and expertise to providing compassionate, comprehensive care at Lone Star Oncology. I look forward to building meaningful relationships with both patients and the care team and working together to promote health and healing within our community.”

“We are excited to welcome Dr. Sabbagh to Lone Star Oncology,” said Brian J. Shimkus, MD, Board-certified medical oncologist and hematologist at the practice. “His background and dedication to patient care will elevate our services. By expanding our physician team, we can now spend more time with our patients and increase the number of patients we see and treat. This is important because our patients can begin their treatments and therapies sooner. His joining will be of great benefit to our patients.”

Lone Star Oncology opened in June 2023 and joined AON simultaneously. The practice is led by Dr. Shimkus and his care team.

It is a community-based oncology and hematology practice specializing in treating patients diagnosed with cancers and blood disorders. Through its partnership with AON, it has expanded its patient services to include infusion therapy, centralized laboratory and pathology, oral cancer medication delivery, and financial counseling, among other benefits.

“AON’s growth into Texas began with our partnership with Lone Star Oncology and Dr. Shimkus,” said Stephen “Fred” Divers, MD, AON’s chief medical officer. “It is rewarding to see the practice’s growth to include a well-respected physician such as Dr. Sabbagh, whose background and experience will be of great value in serving their patients. We are thrilled to welcome Dr. Sabbagh to the network.”

For more information about AON, visit www.AONcology.com. For more information about Lone Star Oncology, visit www.lonestaronc.com.


About American Oncology Network
American Oncology Network (AON) (Nasdaq: AONC) is an alliance of physicians and seasoned healthcare leaders partnering to ensure the long-term success and viability of community oncology and other specialties. Founded in 2018, AON’s rapidly expanding network represents more than 240 providers practicing across 21 states. AON pioneers innovative healthcare solutions through its physician-led model, fostering value-based care that improves patient outcomes while reducing costs and expanding access to quality care. AON equips its network physicians with the tools they need to thrive independently while providing comprehensive support, integrated revenue-diversifying ancillary services, and practice management expertise, enabling physicians to focus on what matters most – providing the highest standard of care for every patient. AON is committed to promoting health equity by addressing disparities in cancer care and ensuring that all patients have access to the care they need to achieve optimal health outcomes. With a focus on innovation and collaboration, AON is shaping the future of community oncology. Learn more at AONcology.com.

About Lone Star Oncology
Lone Star Oncology is a community-based medical oncology and hematology practice providing treatment for patients diagnosed with all types of cancer and blood disorders. Through compassionate care that centers around the patient, we strive to provide the best possible experience to patients and their families throughout the healthcare journey. Learn more at www.lonestaronc.com

Contact for more information:
Caroline Hewitt, Vice President of Marketing
American Oncology Network