Education

Fellowship
Hematology & Medical Oncology, UCLA School of Medicine, 2011
Residency
Internal Medicine, UCLA School of Medicine, 2007
Internship
Internal Medicine, UCLA School of Medicine, 2005
Degree
MD, University of Pennsylvania School of Medicine, 2004

Medical Board Certifications

Hematology
American Board of Internal Medicine, 2011
Medical Oncology
American Board of Internal Medicine, 2011
Internal Medicine
American Board of Internal Medicine, 2007

Gender

Female

State License

A94238
  • About Me

    About Me

    Dr. Callahan attended Yale University and obtained a BS in Biology. She later attended the University of Pennsylvania School of Medicine where she graduated with high honors, Alpha Omega Alpha. She completed her Internal Medicine and Hematology/Oncology training at UCLA. Dr. Callahan is dedicated to providing patient centered care. She has a unique interest in how complementary therapies, such as meditation, yoga, reiki, and nutritional supplements can be integrated with Western evidence based medicine.

    Specialty

    • Breast Cancer
    • Gynecologic malignancies
    • General Hematology-Oncology

    Links

  • Locations

    Santa Clarita - Cancer Care

    (primary location)
    Address
    23929 McBean Parkway
    Suite 215, Building F
    Valencia, California 91355
    Phone
    661-255-5350
    Fax
    661-255-9907

    Santa Monica - Cancer Care (Suite 580)

    Address
    2020 Santa Monica Blvd
    Suite 580
    Santa Monica, California 90404
    Phone
    310-829-5471
    Fax
    310-829-6192

    UCLA Hematology/Oncology Westwood - 100 UCLA Med Plaza Suite 550

    Address
    100 UCLA Medical Plaza
    Suite 550
    Los Angeles, California 90095
    Phone
    310-794-4955
    Fax
    310-443-0477
  • Education

    Medical Board Certifications

    Hematology
    American Board of Internal Medicine, 2011
    Medical Oncology
    American Board of Internal Medicine, 2011
    Internal Medicine
    American Board of Internal Medicine, 2007

    Education

    Fellowship
    Hematology & Medical Oncology, UCLA School of Medicine, 2011
    Residency
    Internal Medicine, UCLA School of Medicine, 2007
    Internship
    Internal Medicine, UCLA School of Medicine, 2005
    Degree
    MD, University of Pennsylvania School of Medicine, 2004
  • Clinical Interests
    • Advanced Malignancies
    • Antiphospholipid
    • Biliary
    • Breast
    • Cancers of the Digestive Tract
    • Chronic Myelogenous Leukemia
    • Esophageal Cancer
    • Gastric Cancer
    • Gastrointestinal Malignancies
    • General Hematology
    • General Oncology
    • Genitourinary
    • Geriatric Breast Cancer
    • Geriatric Lung Cancer
    • Gynecologic Oncology
    • Head and Neck Cancers
    • Hepatobiliary Cancers
    • Laryngeal Cancer
    • Liver Cancer
    • Lung Cancer
    • Lung Cancer & Chest Malignancies
    • Lymphoma
    • Melanoma
    • Multiple Myeloma
    • Ovarian Cancer
    • Pancreas
    • Pancreatic Cancer
    • Prostate Cancer
    • Renal Cancer
    • Sickle Cell Anemia
    • Testicular Cancer
    • Thoracic Cancer
    • Unknown Primary
    • Waldenstrom's Disease
  • Research

    Research Interest

    breast cancer, treating side effects of cancer therapy

    Publications

    1. Rena Callahan. Ado-Trastuzumab Emtansine in Metastatic HER2-Positive Breast Cancer. J Adv Pract Oncol. 2014 Mar-Apr; 5(2): 134–139.
    2. Rena D. Callahan, Patricia A. Ganz. “Side Effects of Systemic Therapy: Neurocognitive, Cardiac, and Secondary Malignancies.” Diseases of the Breast, 5th edition, Ed. Jay R. Harris, MD, Marc E. Lippman, MD, Monica Morrow, MD, and C. Kent Osborne, MD. Lippincott Williams and Wilkins, May 2014, 1224. ISBN: 978-1-4511-8627-7.
    3. RD Callahan, SA Hurvitz. HER2-Positive Breast Cancer: Current Management of Early, Advanced, and Recurrent Disease. Current Opinions in Obstetrics and Gynecology, 2011 Feb. 23 (1):37-43.
    4. R.Callahan, R. Patel, D.Chan, M.Allison, B. Dicarlo, L. Bosserman, A. Kennedy, L.M. Zehngebot, J. Miller, A.E. Giuliano, B. Spivack, L.S. Lin, D.J. Slamon, S.A. Hurvitz. Phase II Trial of Presurgical Treatment with Trastuzumab (H) or Lapatinib (Ty) or the Combination of Trastuzumab and Lapatinib (H+Ty), Followed by Six Cycles of Docetaxel (T) and Carboplatin (C) with Trastuzumab (TCH) or Lapatinib (TCTy) or the combination of Trastuzumab and Lapatinib (TCHTy) in Patients with HER2+ Breast Cancer. 2010 San Antonio Breast Cancer Symposium, December 2010.
    5. Richard P. Tonino, Pierre J. Meunier, Ronald Emkey, Jose A. Rodriguez-Portales, Charles-Joel Menkes, Richard D. Wasnich, Henry G. Bone, Arthur C. Santora, Mei Wu, Rena Desai, and Philip D. Ross. “Skeletal benefits of Alendronate: 7-Year Treatment of Postmenopausal Osteoporotic Women.” J. Clin. Endocrinol. Metab. 2000. 85: 3109-3115.
    6. Rena Desai Callahan, K. Rajender Reddy. “Liver Disease in Pregnancy.” The Clinician’s Guide to Liver Disease. Ed. Reddy KR and Faust T. Philadelphia: Slack, 2006: 211-230.
    7. Richard P. Tonino, Pierre J. Meunier, Ronald Emkey, Jose A. Rodriguez-Portales, Charles-Joel Menkes, Richard D. Wasnich, Henry G. Bone, Arthur C. Santora, Mei Wu, Rena Desai, and Philip D. Ross. “Efficacy and Tolerability of Alendronate (7 years), and Effect of Discontinuation.” The 8th Annual Congress on Women’s Health and Gender Based Medicine, Hilton Head, SC, June 2000.
    8. Rena Desai, Kirti Shetty, Kim M. Olthoff, Abraham Shaked, Colleen M. Brensinger, K. Rajender Reddy. The Tokyo Score in the Prognosis of Hepatocellular Carcinoma. Young Investigator’s Forum, Controversies in Transplantation. March 2004.
    9. Christopher Gasink, Stephen Rulyak, Stephen Rubesin, Rena Desai, James Lewis, Bernard Birnbaum, Jill E. Jacobs, Matthew Gardiner, Gary R. Lichtenstein. Ileal Thickening: Radiographic Features Predictive of Crohn's Disease on Abdominal CT Scan. Digestive Disease Week, May 2004.
    10. Rena Callahan, Ashkan Lashkari, Baldeep Singh. Myositis Ossificans. Society for General Internal Medicine Annual Meeting, March 2006.
  • News & Awards

    Awards

    • Commendation for Excellence in Medical Student Teaching, UCLA, 2007
    • Commendation for Excellence in Medical Student Teaching, UCLA, 2006
    • Commendation for Excellence in Medical Student Teaching, UCLA, 2005
    • Russell J. Stumacher Memorial Award, for academic and artistic excellence, University of Pennsylvania School of Medicine, 2004
    • Glasgow Rubin Award, for academic excellence, University of Pennsylvania School of Medicine, 2004
    • Alpha Omega Alpha medical honor society, inducted 2003 
    • Yale Class of 1956, Summer Fellowship for Study Abroad, 1996
  • Videos
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