Bridging Hematology, Oncology, and Hemophilia – Inside the Green Bay Oncology and HOC Partnership with Dr. Ryan & Dr. Groteluschen

Today on Beyond the Bleeds, we dive into the evolving world of hematology and oncology collaboration and care with Dr. Matthew Ryan and Dr. David Groteluschen from Green Bay Oncology. We discuss the vital importance of specialized, comprehensive care for patients with bleeding disorders, the significance of early intervention, and how partnerships between treatment centers and oncology practices are expanding access and improving outcomes, even in some of the most rural regions. Our conversation goes beyond the clinical to highlight how support staff, research, care coordination, and community outreach shape a patient’s lifelong journey.

Dr. Matthew Ryan is the medical director at the Hemophilia Outreach Center and a hematologist-oncologist with Green Bay Oncology. With over 15 years in the field, Dr. Ryan has developed a unique expertise in both oncological and bleeding disorder care, transitioning from his initial background in hematology to become a dedicated leader in adult hemophilia services.Dr. David Groteluschen, also a hematologist-oncologist at Green Bay Oncology, brings 18 years of experience serving diverse communities throughout Wisconsin and Northern Michigan, championing efforts to deliver high-quality, close-to-home care for patients with cancer and blood disorders.

“We just want to bring care closer to home—providing access to patients for unique care and comprehensive care at their location.” ~Dr. David Groteluschen

Today on Beyond the Bleeds:

• Comprehensive care at specialized treatment centers like HOC provides benefits that rival or exceed university settings, especially for complex bleeding disorders.
• Collaboration between hematology/oncology clinics and hemophilia treatment centers is critical for timely, coordinated, and high-quality patient care.
• There is a dramatic difference in the education and exposure to bleeding disorders between general clinical training and hands-on experience in specialty clinics.
• Early diagnosis and intervention in children and adults can prevent lifelong complications, especially cumulative joint damage from recurrent bleeds.
• New treatments, including gene therapy, are transforming the landscape of hemophilia care; however, the field is still in its early stages regarding long-term data.
• Broader outreach and clinical access, including virtual visits, help reach patients in remote areas who may otherwise go undiagnosed or untreated.
• Many patients with mild or moderate bleeding disorders, particularly women, are still often underdiagnosed or mistakenly normalize their symptoms due to family history.
• Financial counseling, nursing coordination, dietitians, and social workers are essential components of the comprehensive care model, helping patients navigate not just medical care, but also life’s logistics and support.

Guest Contact Information

Green Bay Oncology: https://www.gboncology.comHemophilia Outreach Center: https://hemophiliaoutreach.org

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Know a child or teen in Wisconsin with a bleeding disorder?Don’t miss these life-changing summer opportunities!

Camp Klotty Pine (Aug 3–8, Campbellsport): An unforgettable week of swimming, hiking, canoeing, and confidence-building for kids ages 7–15, plus self-infusion support in a fun, understanding environment.

HOC Mentorship Program (Aug 15, Appleton): A powerful day for teens and young adults to connect, grow, and talk openly with peers and mentors who get it.