Mercy Oncology and Hematology - Clayton-Clarkson
Oncology & Hematology • Fulton, MO
Clinic Type
Oncology & Hematology
Address
15945 Clayton Road, Suite 120, Ballwin, MO 63011
Phone
(636) 256-5000
disabilityaccommodations@mercy.net
Opening Hours
Not published — contact the clinic to confirm hours.
Services Offered
Insurance & Payment
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Not specified on page
Co-pays may vary by insurance; hospital-based services billed separately from physician services
Languages Spoken
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FAQs
What’s a hospital-based service?
Services such as imaging, lab services and surgery centers are hospital-based. They are billed separately from physician services, which may affect your co-pay or deductible. Check with your insurance carrier to verify coverage.
Social Media
Photos







What Patients Say
Overall sentiment across review platforms: mixed
- Vitals, LocalityBiz, Hospitals-USA, Wellness.com: N/A (no public reviews available specifically for this location) (0)
Patients praise
- comfortable physical environment compared to other centers
Common complaints
- difficulties with scheduling and appointments
- long wait times for ongoing treatments
- perceived lack of compassion or clear communication
"The setting is more comfortable than other treatment centers. Other places where I received chemotherapy were scary, dark and medicinal."
— Mercy website testimonial for Clayton & Clarkson clinic"It's possible that doctors here are capable of treating cancer but they are definitely not capable of treating patients... Zero compassion, zero or wrong information, zero cooperation, zero or incorrect scheduling."
— Review for a related Mercy oncology practice (David C. Pratt Cancer Center)Synthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].
In the News
- [PDF] NRG Oncology Roster as of 1/13/2026 (sorted by CTEP ID) — Jan 26, 2026
- [PDF] NRG Oncology Roster as of 1/13/2026 (sorted by Network State ... — Jan 26, 2026
- [PDF] section 1 - Medica — Dec 31, 2025
- Mercy Health adding medical oncology services — Jul 7, 2026
- MercyOne and The Iowa Clinic announce partnership to transition gynecologic oncology services for Central Iowa | MercyOne — Jan 12, 2026
Information sourced from the clinic's website as of July 11, 2026.
More oncology & hematology clinics in Fulton
Ellis Fischel Cancer Center is MU Health Care’s cancer care division based in Columbia, Missouri, with three Missouri offices including its main hospital location and a regional site. It offers comprehensive cancer services such as screening, dietary support, and research programs, plus community engagement and support groups. The center operates as a private healthcare provider with about 13 staff and annual revenue around $16.1 million. It collaborates with multiple local and national institutions and relies on tools like Power BI and Tableau for data. Note: The Fulton location isn’t listed in the current MU Health Care directory; the center’s active locations are in Columbia, MO. If you’re seeking care specifically in Fulton, consider contacting MU Health Care for nearest affiliated sites or referrals.
Summary: The search results describe OHA-Oncology Hematology Associates, a small Hospitals and Health Care partnership based in Springfield, Missouri, with three offices in Missouri (HQ at 3850 S National Ave, Springfield; another in Monett). They have 2 employees and provide oncology and hematology services. Key contact: info@ohaclinic.com, phone 1-417-882-4880. Notably, there is no direct information linking “Oncology Hematology Associates” specifically to Fulton, MO. If you’re seeking Oncology Hematology Associates in Fulton, MO, this listing may not represent that location; you may want to check for a Fulton-specific practice or broader regional providers in nearby Springfield or Monett.
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