3300 E. South St.
Suite 304
Long Beach, CA 90805
Monday 8:30 a.m. – 5:00 p.m.
Tuesday8:30 a.m. – 5:00 p.m.
Wednesday8:30 a.m. – 5:00 p.m.
Thursday8:30 a.m. – 5:00 p.m.
Friday8:30 a.m. – 5:00 p.m.
If you are experiencing cancer, The Oncology Institute is here to serve you at our clinic in Long Beach, California. We offer cancer treatments led with compassion and state-of-the-art innovation.

3300 E. South St.
Suite 304
Long Beach, CA 90805
The team at The Oncology Institute has experience treating all forms of cancer with various treatments. Meet the physicians and care specialists at our Long Beach clinic:
Omkar Marathe, M.D.Dr. Omkar Marathe is a California native who has been an integral part of our team. He is a physician and the Medical Director of our clinical research programs.View Profile
Anais Lane, Director, Advanced Practice Provider, AOCNPAnais Lane has been a nurse practitioner at The Oncology Institute since 2013 and incorporates patient relationships into her cancer care practice.View Profile
Emily Colorado, MSN, AOCNPEmily Colorado has extensive experience in hospital and outpatient settings. She provides high-quality cancer care, emphasizing health promotion and disease prevention.View ProfileOur cutting-edge, evidence-based cancer care options include infusions, radiation, clinical trials, and other care delivery models.
Cancer takes many forms, and our High-Value Cancer Care (HVCC) program helps patients navigate advanced treatment. This program emphasizes care coordination, informed decision-making, symptom management, and individual coaching. Using a patient-centric care model, we empower you to make the best decisions for your care.
The Oncology Institute offers radiation therapy to shrink and kill tumors and cancer cells using gamma rays, X-rays, and other charged particles. We utilize two forms of radiation therapy — external and internal. External radiation uses a machine with photon beams over the cancer area, while internal uses oral or intravenous (IV) medication for treatment.
Our Long Beach clinic offers clinical trials to eligible patients. Clinical trials provide patients with unique opportunities to experience alternative care options and potentially improve outcomes. Browse our current clinical trial list to see if you may be eligible.
You can find The Oncology Institute near Lakewood Regional Hospital in Long Beach, CA. This location is open for treatments Monday through Friday from 8:30 a.m. to 5:00 p.m., and free parking is available in the lot behind the building.
Request an appointment with our experts today.