The Sibley Physician Group (SPG) is an integrated team of exceptional, board-certified primary care and specialty physicians dedicated to delivering quality compassionate care and services. The team is comprised of primary care and specialty physicians and nurse practitioners, physician assistants, nurses, clinical associates, diagnostic staff and non-clinical staff.
The diverse group of physicians deliver care across a range of clinical specialties This growing list of specialty practices includes:
For general information, call 202.537.4593 or email Sumera Haque, MBBS, MPH, Clinical Operations Director at shaque@sibley.org. You may also reach each of the physicians at their individual phone numbers listed below.
The Sibley Physician Group is accepting new patients. Our physicians accept most insurance carriers. Inquire about whether your insurance is accepted when making an appointment.
Locations and Phone Numbers
Unless otherwise noted, all physicians are located at:
Sibley Memorial Hospital
5255 Loughboro Rd. NW
Washington, DC 20016
Breast Surgeons
Colette Magnant, M.D., Director, Breast Cancer Program
Sibley Memorial Hospital
Phone: 202-243-5230
Richard Flax, M.D.
Wednesdays at 2440 M Street NW, Suite 326
Washington DC 20037
Phone: 202-457-0606
Tuesdays at Sibley Memorial Hospital
Phone: 202-457-0606
General Surgeon & Intensivist
Hasan Zia, M.D., Director, Critical Care and Emergency Surgery
Tuesdays at Sibley Memorial Hospital:
Phone: 202-370-6570
Fridays at M Street location:
2440 M Street NW, Suite 326
Washington, DC 20037
Phone: 202-370-6570
Sibley Center for Gynecologic Oncology and Advanced Pelvic Surgery
Jeffrey Lin, M.D., Director
Mildred Chernofsky, M.D.
Sibley Memorial Hospital
Phone: 202-243-5295
Hospitalists
Mary Therese O'Donnell, M.D., MPH, Director
Priyadarshan Gupta, M.D.
Michael Lee, M.D.
Aparna Miano, M.D.
David Mitchell, M.D.
Lisa Olin, M.D.
Lorena Popp, M.D.
Sibley Memorial Hospital
Phone: 202-537-4342
Internal Medicine, Primary Care
Matty Mathivannan, M.D.
Mark D. Strong, M.D.
Iona Senior Services
4125 Albemarle Street, NW
Washington, DC 20016
Phone: 202-660-7800
Dedicated Breast Radiologists
Rebecca Zuurbier, M.D., Director, Breast Imaging
Pouneh Razavi, M.D.
Sibley Memorial Hospital
Sullivan Center for Breast Health
Phone: 202-537-4545
Palliative Care
Chris Butler, CRNP
Sibley Memorial Hospital
Phone: 202-370-6580