City of Hope | Glendora provides the community with unparalleled care and innovative treatments close to home. Our newly expanded location, conveniently located one mile north of the 210 Freeway, extends the reach of City of Hope’s world-class cancer care.

Our skilled staff of doctors specialize in hematology, urology, urologic oncology, colorectal surgery, hepatobiliary surgery and medical oncology.

Open Hours

Monday through Friday: 8 a.m. to 5 p.m.
Closed on major federal holidays
Ample free parking


The location of City of Hope’s Glendora practice gives our patients easy access to additional laboratory and diagnostic radiology services such as mammograms, MRI (magnetic resonance imaging) and CT (computed tomography) scans, so there’s no need to drive for miles from appointment to appointment.

We are dedicated to creating a positive and healing environment in our Glendora location, which is light and bright and features state-of-the art ultrasound machines, free guest Wi-Fi, a flat-screen TV in the waiting room and ample free parking, all contributing to making our patients’ time here as comfortable as possible.

With locations across Los Angeles, Ventura, Riverside and San Bernardino counties, our community patient care centers bring City of Hope’s expert care and leading-edge treatment to your neighborhood. Patients in our community practice sites have access to various City of Hope clinical trials, in which our doctors and researchers investigate the newest ways to detect, treat and prevent disease.

City of Hope is a recognized world leader in cancer research and treatment, and that expertise is available to every patient at every location:

  • Designated as a comprehensive cancer center, the highest recognition bestowed by the National Cancer Institute, City of Hope is also a founding member of the National Comprehensive Cancer Network, with research and treatment protocols that advance care throughout the nation.
  • We have been ranked as one of “America’s Best Hospitals” in cancer for more than a decade by U.S.News & World Report.
  • Our pioneering bone marrow and stem cell transplant program is one of the largest and most successful in the United States, with more than 13,000 procedures performed to date and unparalleled survival rates for the past 12 years.
  • Four of the most widely used cancer drugs, Herceptin, Rituxan, Erbitux and Avastin, are based on technology pioneered by City of Hope, saving lives worldwide.
  • We’re leading the way in immunology, harnessing the body’s natural defenses to fight cancer.


Map & Directions

412 W. Carroll Ave., Suite 200 , Glendora , CA 91741


Services offered

  • Medical oncology 
    - Diagnosis and treatment using hormonal, biological and targeted therapy, as well as access to chemotherapy treatment in our nearby West Covina location
  • Surgical oncology - The treatment and management of cancer through surgery
  • Hematology - Our nationally recognized experts treat blood cancers, as well as disorders relating to blood and tissues.
  • Urology - We address both women’s health urology and men’s health urology, and most general urology issues, including vasectomy, UTI and cystitis.
  • Colorectal surgery - Diagnosis and treatment of benign and malignant disorders of the rectum, anus and colon
  • Hepatobiliary surgery - Diagnosis and treatment for benign and malignant diseases of the liver, pancreas, gallbladder and bile ducts
  • Clinical trials - Glendora patients have the opportunity to participate in City of Hope’s groundbreaking clinical trials, involving the newest drugs and leading-edge treatments before they are widely available.
  • Consultations - We offer consultations for all cancers, as well as for individuals at high risk of cancer.
City of Hope’s renowned physicians and researchers utilize the latest in technology and innovation to treat cancer, coupled with our enduring belief in providing unparalleled compassionate care.
Aziz Ahmad, M.D.
Assistant Clinical Professor, Division of Surgical Oncology, Department of Surgery
Glendora , Rancho Cucamonga
Seth A. Cohen, M.D.
Assistant Clinical Professor, Division of Urology and Urologic Oncology, Department of Surgery
Pasadena , Glendora , Santa Clarita , Mission Hills , Antelope Valley , West Covina
Edward L. Davis, M.D.
Staff Physician
Thanh H. Dellinger, M.D.
Assistant Professor, Division of Gynecologic Surgery, Department of Surgery
Gynecologic Oncology Surgeon
Duarte , South Pasadena , Glendora
Diana Londoño, M.D.
Assistant Clinical Professor, Department of Surgery, Division of Urology and Urologic Oncology
Glendora , West Covina
Kurt A. Melstrom, M.D., F.A.C.S., F.A.S.C.R.S.
Assistant Clinical Professor, Division of Surgical Oncology, Department of Surgery
Colorectal Surgeon
Duarte , Glendora
Gargi Upadhyaya, M.D., F.A.C.P.
Assistant Clinical Professor
Staff Physician
West Covina , Glendora
Susanne Gray Warner, M.D.
Assistant Professor, Department of Surgery, Experimental Therapeutics
Duarte , Glendora
Jonathan N. Warner, M.D.
Assistant Professor, Division of Urology and Urologic Oncology, Department of Surgery
Glendora , Pasadena
Jonathan Lim Yamzon, M.D.
Assistant Clinical Professor, Division of Urology and Urologic Oncology, Department of Surgery
Urologic Oncology Surgeon
Duarte , Glendora
Ali Zhumkhawala, M.D.
Assistant Clinical Professor, Division of Urology and Urologic Oncology, Department of Surgery
Urologic Oncology Surgeon


City of Hope Medical Foundation contracts for physician services rendered at City of Hope and in our community practice sites. Please note that although we strive to keep this information current, it is subject to change without notice. For questions related to your specific coverage at this site, please contact your insurance provider directly. You can find that phone number on your insurance card or in your benefits book.

If you wish to receive treatment at a City of Hope location or with a City of Hope physician but we do not currently contract with your insurance plan, contact your insurance company and ask about obtaining authorization to receive treatment here. Every medical situation — and every insurance plan — is different, and there is no guarantee that coverage can be secured. But it is reasonable to make this request, and to ask your insurance company to review the matter with City of Hope Medical Foundation directly. Learn more about medical insurance and financing.

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