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Breast Health Center




Breast Health Center - Meet the Team

"At Sibley, we have a team in place capable of providing the best in breast care, and we are leaders in all aspects of breast cancer diagnosis and treatment."

Colette M. Magnant, M.D.
Breast Surgeon
Director of the Sullivan Center's Breast Cancer Program

A Multidisciplinary Team Approach to Breast Health and Breast Cancer Treatment and Diagnosis

As a comprehensive breast center, the Sullivan Center at Sibley Memorial Hospital in Washington, DC is staffed by specialists from diverse disciplines who work closely together in the diagnosis, treatment and support of our patients. At regularly scheduled Breast Conferences, patient cases are discussed by breast radiologists, surgeons, medical oncologists, radiation oncologists, pathologists, pain medicine specialists, oncology nurses and others that make up the members of the breast conference team. Together, this group explores all possible treatment options in order to recommend the best breast treatment plan for the patient.

Dedicated Breast Radiologists

Pouneh Razavi, M.D.
Sandra H. Joo, M.D.
David Schlesinger, M.D.

Breast Specialists

Colette M. Magnant, M.D., FACS
Reem Saadeh, M.D., Clinical Geneticist
Lynn Turner, R.T. (R) (M)
Jennie McLaughlin Tarica, R.N., M.S.N.
Ida Vaclavik, R.N., M.S., FNP-BC

Breast Surgeons

Colette M. Magnant, M.D., FACS 
Meredith Garrett, M.D.
Bonnie Sun, M.D.

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Pouneh Razavi, M.D.

Pouneh Razavi, M.D. is director of breast imaging. Dr. Razavi is a board-certified, dedicated breast imager with special interest in breast MRI. She held a position as attending physician, breast imager at Georgetown University Hospital from July 2006 to April 2008 and joined Sibley's Sullivan Breast Center in April 2008.

Dr. Razavi is currently a member of the Medical Advisory Committee for Project WISH (Women In To Staying Healthy), Society of Breast Imaging, Radiological Society of North America, American Roentgen Ray Society and The American Medical Association. Dr. Razavi was the recipient of the 2004 RSNA Roentgen Resident/Fellow Research Award, presented in recognition of outstanding radiological research. She has also published articles and was an invited speaker at the Armed Forces Institute of Pathology (AFIP) Radiologic Pathology Course; Prince William Hospital, Grand rounds, Utility of Breast MRI; Prince William Hospital, Breast Cancer Symposium, Screening for Breast Cancer; and at the Sibley Memorial Hospital Breast Health: Knowledge is Power seminar in 2008 and 2012.

Medical School: Georgetown University School of Medicine
Residency: Georgetown University Hospital
Fellowship: Memorial Sloan Kettering Hospital


Sandra H. Joo, M.D.

Sandra H. Joo, M.D., is a dedicated breast radiologist in the Sullivan Breast Center. Dr. Joo comes from the Memorial Sloan Kettering Cancer Center (MSKCC) in New York City where she was an attending physician for eight years. Dr. Joo brings extensive experience in all aspects of breast imaging and intervention including minimally invasive breast biopsies and breast MRI.  In addition to her clinical duties at MSKCC, Dr. Joo has trained medical students, radiology residents, breast imaging fellows as well as visiting physicians how to read breast MRIs as well as to perform MRI guided breast biopsies and localizations.  She also held a faculty appointment as an assistant professor of radiology at the Weil Medical College of Cornell University. She has expertise in all aspects of breast imaging and intervention and has published in the field of breast imaging. She received her bachelor of science in biology from Emory University in Atlanta, GA, graduating summa cum laude with highest honors in biology.  

Special Interests: Breast Imaging, Breast MRI
Medical School: University of Florida College of Medicine
Residency: Radiology, New York University
Fellowship: Breast and Body Imaging, Memorial Sloan Kettering Cancer Center

David Schlesinger, M.D.

Dr. Schlesinger is a board-certified, dedicated breast radiologist specializing in the screening and diagnosis of breast cancer.  He has a special interest in 3D mammography (tomosynthesis) and brings proficiency in all aspects of breast imaging and interventional procedures, including minimally invasive, image-guided biopsies. Dr. Schlesinger was clinical assistant professor of radiology at The University of South Dakota School of Medicine. He has trained medical students, diagnostic radiology residents and fellows during his career. He has lectured at medical conferences and has also been featured on statewide television and radio broadcasts as an expert on breast cancer screening and 3D mammograms. Dr. Schlesinger is a member of the Society of Breast Imaging, American College of Radiology, Radiological Society of North America and American Roentgen Ray Society.

Medical School: University of Buffalo School of Medicine
Residency: University of Texas Health Science Center San Antonio
Fellowship: Harvard Medical School-The Brigham and Women's Hospital

Colette M. Magnant, M.D., FACS

Dr. Magnant, Director of Sibley’s Breast Cancer Program, has had 22 years of surgical experience, with 17 dedicated exclusively to breast surgery. Dr. Magnant performs services to ensure compliance with standards of the Joint Commission, serves on medical staff committees, provides administrative leadership, and evaluates and makes recommendations for the continued improvement of Sibley’s multi-disciplinary approach in the diagnosis, care and treatment of breast disease. She has held several academic appointments including Associate Professor of Surgery and Director of Trauma Services at Georgetown University Medical Center.

Special Interests: Breast Surgery
Medical School: Medical College of Virginia
Internship: General Surgery, Indiana University Medical Center
Residency: General Surgery, Georgetown University Medical Center
Board Certification: National Board of Medical Examiners, American Board of Surgery American College of Surgeons, American Board of Surgery, Oral Examiner
Professional Organizations: American College of Surgeons, Washington Academy of Surgery, Southern Medical Association, Society of Surgical Oncology, Pan American Trauma Society, Association for Academic Surgery, District of Columbia Medical Society
Honors, Publications and Other Information: Dr. Magnant, a founding physician of Sibley’s Sullivan Center for Breast Health, is also the recipient of several research grants, has published numerous articles and book chapters in peer reviewed journals and is an invited speaker at scientific conferences and seminars.

Dr. Magnant is part of the Sibley Physician Group and accepts most insurances. The phone number to the SPG office is 202-243-5230.

Bonnie Sun, M.D.

Dr. Sun is a board-certified breast surgeon specializing in breast cancer. She joins the Johns Hopkins Department of Surgery as a breast cancer specialist. Dr. Sun is committed to improving outcomes in breast cancer. Her research focuses on optimizing techniques that reduce the risk of recurrence and improve cosmetic results. She has a deep understanding of the challenges facing women with breast cancer and employs a comprehensive, multidisciplinary approach in its treatment.
Undergraduate Degree: Johns Hopkins University
Medical Degree: Penn State University School of Medicine
Residency: University of Southern California, General Surgery
Fellowship: University of Southern California, Breast Surgery
Board Certification:  American Board of Surgery

Click here to read our interview with Dr. Sun and learn more about her approach to breast cancer treatment.
Dr. Sun accepts most insurances. Call 202-243-5230 to make an appointment.

Reem Saadeh, M.D., Clinical Geneticist

Dr. Saadeh, Clinical Geneticist and has extensive clinical experience in genetics. She provides genetic risk counseling for cancer risk, including breast. Her office is located in the Sullivan Center for Breast Health.

Special Interests: Genetic Counseling
Medical School: Georgetown University School of Medicine
Residency: Pediatrics, New York University Medical Center
Fellowship: Postdoctoral Clinical Genetics Training Program Clinical Genetics, Johns Hopkins University Hospital
Board Certification: American Board of Genetics, American Board of Pediatrics
Professional Organizations: American Academy of Pediatric Medicine
Honors, Publications and Other Information: Dr. Saadeh has received numerous awards including the 2005 Margaret Ellen Nielson Fellowship award in Genetic Medicine. She has published numerous abstracts, served on committees and participated in research and clinical trials.

Lynn Turner, R.T. (R) (M)

Lynn Turner, Radiologic Technologist, has been the Manager of the Sullivan Center for Breast Health since 2002. Lynn graduated Magna Cum Laude with a bachelor's degree in Radiologic Sciences from the University of Central Florida College of Health in 1989. Recognized by the American Registry of Radiologic Sciences in Radiology and Mammography, she holds current licenses in D.C., Maryland and Virginia. She brings over twenty years of experience in mammography technology and MQSA quality assurance. Before coming to Sibley, Lynn was Associate Director, Mobile Mammography Operations at George Washington University. Lynn is available to assist you with special needs, questions or concerns.


Jennie McLaughlin Tarica, R.N., M.S.N.

Jennie Tarica, Breast Center Nurse Navigator since July 2008, is an educator, advocate and guide. She coordinates all aspects of a patient’s care-from diagnosis and treatment to recovery. Jennie has been at Sibley since 1986, as a Clinical Nurse, Nurse Manager, Education and Training specialist in Oncology and Pain Management and most recently she has been the Pain Management Coordinator. She earned her MSN in Nursing Administration from George Mason University and she has been endorsed by the Professional Advancement for Clinical Excellence (PACE) at the RN III level since 2005. Jennie is a certified breast patient nurse navigator who works with patients and physicians to coordinate care.

Ida Vaclavik, R.N., M.S., FNP-BC

Ida Vaclavik is a board certified nurse practitioner with a special interest and expertise in breast health.  Before joining Sibley in 2011, Ida worked for 5 years in women's health at Washington Hospital Center.  She received her Masters of Science from Georgetown University, and is a board certified Family Nurse Practitioner.  Prior to that, she completed her Bachelor of Science in Nursing from Virginia Commonwealth University, and worked as an RN. Ida currently works in the Breast Surgery office.  Ida has a high risk clinic, and follows patients who have an increased risk for developing breast cancer due to their personal or family history.  In addition to the high risk clinic, she sees patients for a variety of breast complaints including a history of breast cancer, a new breast mass and abnormal imaging.  Ida is also involved in the coordination of the Breast Cancer Survivorship Program, and assists the surgeon’s clinical management of the surgical patients.

Learn more
about the comprehensive breast health services available at the Sullivan Center.


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