Antelope Valley

City of Hope provides Antelope Valley, Lancaster and its surrounding communities with incomparable cancer care and innovative treatments close to home.

The convenient location, just off Highway 14, puts our patients within easy reach of additional medical, laboratory and diagnostic radiology services, such as ultrasound, mammograms, MRI (magnetic resonance imaging) and CT (computed tomography) scans.

34.6855732, -118.1584387

44151 15th Street West
Lancaster, CA 93534
All Patients

Monday through Friday: 8 a.m. to 5 p.m.

Closed on major federal holidays

Visitor Policy
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  • Insurance Information
APEx American Society of Radiation Oncology (ASTRO) badge

City of Hope cares for patients from prevention through survivorship by pairing our expertise in numerous cancers and conditions with world-class technologies and services.

The radiation oncology program at City of Hope | Antelope Valley has earned APEx accreditation, the highest level of certification offered by the American Society for Radiation Oncology (ASTRO).

City of Hope is dedicated to creating a positive and healing environment in our spacious chemotherapy and infusion area. Features such as private TV sets with cone speakers, large and relaxing chairs, warm blankets, a break room stocked with healthy snacks and free guest Wi-Fi all contribute to making our patients’ time here for treatment as comfortable as possible.


Express Check-In Kiosk

After your first visit, you can access our self-check-in kiosk and be able to:

  • Check in for your appointments and print your itinerary
  • Make a payment online with Visa, MasterCard or Discover (debit/credit)
  • Sign up for the MyCityofHope patient portal

Please note, the kiosk service is not available if you are visiting for the first time, your name and insurance has changed since your last visit, or if you will be making your co-payment with cash, check or debit card.

City of Hope is home to many of the nation's leading cancer doctors. With clinical specialities that span all of medicine, multi-lingual and many locations to fit your needs. Find a physician that fits you today.

Is My Insurance Accepted?

View a list of insurance companies that City of Hope currently contracts with for its locations and physicians. Even if your plan is included, check with your insurance company to make sure you are covered. Your insurance company/medical group will tell you if you need any authorizations.

If you wish to receive treatment at City of Hope, but we're not currently contracted with your insurance plan, contact your insurance company and ask about obtaining authorization to receive treatment here.

View our pricing and billing

Provider based billing

No Surprise Billing

When you're treated by an out-of-network provider at an in-network facility, you are protected from balance billing. In these cases, you shouldn't be charged more than your plan's copayments, coinsurance and/or deductible. Learn about your rights and protections against surprise medical bills

Explore City of Hope | Antelope Valley

The light and bright 25,000-square-foot facility offers multiple exam and treatment rooms for patient comfort and convenience, expanding access to City of Hope’s world-class level of care.

Exterior of Antelope Valley campus

Our Physicians

Clarke Anderson, M.D.
Pediatric Hematologist-Oncologist
Duarte - Main Campus; Antelope Valley; South Pasadena; Upland

Clarke Anderson, M.D., is City of Hope's go-to professional for handling difficult and often heart-rending cases of cancer in small children, especially neuroblastomas, or tumors of the central nervous system.

Hannah Asghari, MD, hematologist-oncologist, Department of Medical Oncology & Therapeutics Research
Hannah Asghari, M.D.
Medical Oncologist and Hematologist
Antelope Valley

Hannah Asghari, M.D., is a medical oncologist and hematologist in the Department of Medical Oncology & Therapeutics Research.

Mary Cianfrocca
Duarte - Main Campus; Antelope Valley

Mary Cianfrocca, D.O., M.B.A., is a medical oncologist at City of Hope's cancer research hospital.

Maria de Leon
Maria C.B. de Leon, M.D.
Gynecologic Oncologist
Antelope Valley; Mission Hills; Santa Clarita

Maria de Leon, M.D., is an assistant clinical professor in City of Hope's Division of Gynecologic Oncology, specializing in diagnosis and treatment of cervical, endometrial/uterine and ovarian cancers.

Boryana Eastman
Boryana Eastman, M.D., Ph.D.
Radiation Oncologist
Antelope Valley

Boryana Eastman, M.D., Ph.D., is an assistant professor in the Department of Radiation Oncology at City of Hope.

Trevor Lim
Trevor Lim, M.D.
Radiation Oncologist
Antelope Valley

Trevor Lim, M.D., chose his specialty in radiation oncology because it gives him the chance to eradicate cancer with pinpoint precision and minimal side effects for his patients. Helping people with cancer live longer, healthier lives in this way drives his work as a physician.

Amartej Merla
Amartej Merla, M.D.
Medical Oncologist and Hematologist
Antelope Valley; Palmdale

Amartej Merla, M.D., is a medical oncologist and hematologist with expertise in hematological cancers as well as gastrointestinal, stomach, esophageal and colorectal cancers. He practices at City of Hope's Antelope Valley location.

Yih Dar Nien
Yih-Dar Nien, M.D.
Surgical Oncologist
Santa Clarita; Antelope Valley

Yih-Dar Nien, M.D., is a cancer surgeon at City of Hope's Antelope Valley and Santa Clarita locations.

Tanyanika Phillips
Tanyanika Phillips, M.D., M.P.H.
Medical Oncologist and Hematologist
Antelope Valley

Tanyanika Phillips, M.D., M.P.H., is a medical oncologist, hematologist and assistant clinical professor in the Department of Medical Oncology & Therapeutics Research.

Heather Player, M.D.
Heather Player, M.D.
Surgical Oncologist
Antelope Valley; Santa Clarita; Palmdale

Heather Player, M.D., is breast and colon cancer surgeon and an assistant clinical professor in the Division of Surgical Oncology at City of Hope. She practices at City of Hope | Antelope Valley and Mission Hills.

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