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Anesthesiology at Sibley Memorial Hospital

Clinical anesthesia services for outpatients, inpatients and obstetric patients at Sibley Memorial Hospital are provided by our partner organization, Certified Anesthesia Services (CAS). CAS is an private physician practice that has been associated with Sibley since the 1940s. Providers work closely alongside physicians, surgeons and medical staff to provide specialized care that is tailored to each patient, and also consults in the pre-admission testing center and the ICU. All providers are board-eligible or board-certified anesthesia doctors or nurse anesthetists.

We know that patients and families are concerned about the risks of surgery and anesthesia. We strive to provide patients and families with all the information available to make an informed decision about the best anesthetic management available in each individual case. Learn about your anesthesiologist will be involved with some of the most common medical procedures in our pages to the left.

For the full list of providers, please visit Please note that our physicians do not provide pain management services.

Contact Information

Practice Administration

Elizabeth A. Worthen, Office Manager
202-243-2220 (fax)
Monday – Friday, 8:30 a.m. – 4:30 p.m.

Billing and Claim Inquiries

1-800-242-1131, ext. 5173, or 202-537-4141
Monday – Friday, 8:30 a.m. – 4:30 p.m.

Please note that the billing office and practice administration phone lines are not monitored after business hours.

Our providers accept most major insurance plans. If you have questions regarding insurance or billing, please contact our billing office.

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