Mercy Clinic Oncology and Hematology - Ada
Oncology & Hematology • Stillwater, OK
Clinic Type
Oncology & Hematology
Address
430 N. Monte Vista Street, Ada, OK 74820
Phone
(580) 421-1141
disabilityaccommodations@mercy.net
Opening Hours
By appointment only. Please call to schedule.
Services Offered
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Insurance & Payment
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Languages Spoken
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FAQs
What services does Mercy Clinic Oncology and Hematology in Ada provide?
Specializes in diagnosing and treating cancer, blood disorders like anemia, and bleeding or clotting problems, with chemotherapy and immunology services, as well as patient and family support.
Where are chemotherapy treatments provided?
Chemotherapy treatments are provided in the Mercy Cancer Center on the campus of Mercy Hospital in Ada.
How can I get more information or schedule?
For more information about cancer treatment and other services, call (580) 421-1141.
Social Media
Photos






What Patients Say
Overall sentiment across review platforms: mixed
- Vivian Health: 4.4/5 stars (9 reviews (Facility-wide))
- Birdeye: 2.9/5 stars (13 reviews (Primary Care))
Patients praise
- Compassionate and attentive care staff
- Highly skilled and thorough physicians
- Positive patient-centered approach by individual providers
- Accredited facility standards
Common complaints
- Issues with administrative staff or office responsiveness (e.g., medication authorizations)
- Strict policy enforcement regarding appointment tardiness
"Mercy Hospital's oncology department in Ada receives overwhelmingly positive feedback for compassionate staff, excellent care, and supportive ..."
— Facebook Group Discussion"I was very happy with Dr. Reeder. She spent a long time with me really getting to know my medical history. I felt as if I am actually a person instead of just a number being pushed through the doors."
— WebMD Patient Review"They are horrible and there is no accommodation from them... I will most definitely not be going to them ever again!"
— Birdeye Review (Primary Care)Synthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].
In the News
- Mercy Ada Debuts New High-Tech Radiation Machine for Cancer Treatment | Local News | theadanews.com — Jan 10, 2026
- Mercy Hospital in Ada unveils new high-tech radiation machine — Jan 8, 2026
- [PDF] Provider and Pharmacy Directory - HealthSpring — Oct 12, 2025
- New oncology center to expand cancer care at Mercy Fort Smith — May 7, 2026
- Dr. Sanjay Hapani, MD - Hematology & Oncology - Healthgrades — Aug 26, 2025
Information sourced from the clinic's website as of July 11, 2026.
More oncology & hematology clinics in Stillwater
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HealthPartners is a nonprofit integrated health care provider and health insurance company based in Bloomington, Minnesota (founded 1957). It operates hospitals, clinics, and insurance plans across Minnesota and Wisconsin, with a nationwide footprint through partnerships. Notable details: - Type: Nonprofit health system and insurer - Headquarters: Bloomington, MN - Revenue (approx.): $8.2B; Employees: ~4,030 - Services: Care delivery, insurance coverage, research and education - Networks: Includes facilities like Jane Brattain Breast Center; part of UnitedHealthcare Services, Inc. - Contact: Main phone 952-883-6000; Website: healthpartners.com Note: The provided highlights do not specifically mention a Lakeview Hospital or a Cancer Center in Stillwater. If you’re seeking information about a Lakeview Hospital Cancer Center affiliated with HealthPartners in Stillwater, please share a link or more context so I can pull the exact details.
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