Chair and Medical Director - John H. Stephenson, M.D., FASA
President - Julius Hamilton, M.D.
Secretary/Treasurer - Darren Hyatt, M.D.

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Clinical Divisions

PSA Clinical Leadership:
- Chair, Department of Anesthesia – John Stephenson, M.D., FASA
- Vice-Chair; President – Julius Hamilton, M.D.
- Director; Chief of Clinical Operations – Darren Hyatt, M.D.
- Quality Officer - Nanhi Mitter, M.D., M.Ed., FASA
- PSCU, PAT, and APP Manager – Lingesh Sivanesan, M.D.
- General Anesthesia, OSP, and PACU - Patrick Harkins, M.D.
- Cardiac Anesthesia - Kimberley Haluski, M.D.
- Critical Care Medicine; CVICU Medical Director - Sarah Burke, M.D.
- Information Technology - Vijal Patel, M.D.
- Ambulatory Anesthesia, and Resurgens Surgery Center Medical Director - Jason York, M.D.
- Acute Pain, GIDU, Equipment, Purchasing, and Anesthesia Technician Liaison – Taylor Kahnke, M.D.
- Thoracic, Interventional Pulmonary, and Non-OR Anesthesia - David Moore, M.D.
- Resurgens Lawrenceville Medical Director - David Apatov, M.D. - NWENT Medical Director - David Sanusi, M.D. - Education and CME Program - Lee Bannister, M.D.
- Senior Chief Anesthetist - Barry Hunt, CAA
- Associate Chief Anesthetists - Katie Hunt, CAA, and Mohammad Pradhan, CAA
- Practice Management – Lynn Epps, Practice Administrator

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PSA takes great pride in the quality of its physician members. The physicians of PSA are all board certified by the American Board of Anesthesiology. They have degrees from some of the most respected medical schools and anesthesia residency programs in the country.

PSA members have graduated from such institutions as the Johns Hopkins School of Medicine, University of California at San Francisco, The Cleveland Clinic, Emory University, The Mayo Clinic, University of Rochester, Harvard University, Columbia University, University of Florida, Bowman Gray School of Medicine of Wake Forest University, the Ochsner Clinic, and the University of Chicago. Many PSA physicians have additional areas of board certification, including critical care medicine, pain management, and family medicine.

Thirteen members have passed the National Board of Echocardiography (NBE) Examination of Special Competence in Advanced Perioperative Echocardiography and five are fully Board Certified by the NBE. Eight hold board certification in pain management by the American Board of Pain Medicine and American Board of Anesthesiology. PSA is proud to have among its members three board examiners of the American Board of Anesthesiology, highly unusual for a private practice of this size.

Finally, members of PSA have been leaders in the American Society of Anesthesiologists, the Georgia Society of Anesthesiologists, the Medical Association of Georgia, the Greater Atlanta Society of Anesthesiologists, and the medical staff of Saint Joseph's Hospital of Atlanta.

PSA physicians have received multiple awards and recognition across the years:
- 2022 - Castle Connolly Top Doctor - Dr York
- 2022 - Atlanta Magazine Top Doctor - Dr's Hartney-Baucom, Haluski, Stephenson, Sween, and York
- 2023 - Castle Connolly Top Doctor - Dr's Au, Hartney-Baucom, Guidry, Haluski, Hamilton, Hyatt, Yao, and York
- 2023 - Atlanta Magazine Top Doctor - Dr's Hartney-Baucom, Stephenson, Sween, and York
- 2024 - Castle Connolly Top Doctor - Dr's Apatov (Rising Star), Au, Briesacher, Guidry, Haluski, Hamilton, Hartney-Baucom, Hyatt, Krueth, Mitter, Yao, York

Our physicians:
David A. Apatov, M.D.
Michelle Au, M.D., M.P.H.
Lee Bannister, M.D.
Anne Hartney-Baucom, M.D.
Kurt S. Briesacher, M.D.
John J. Byrne, M.D.
Sarah Burke, M.D.
Abid Fazal, M.D.
Matthew L. Guidry, M.D.
Kimberley D. Haluski, M.D.
Julius Hamilton, M.D.
Patrick Harkins, M.D.
Darren Hyatt, M.D.
Taylor Kahnke, M.D.
Stacy Krueth, M.D.
Nanhi Mitter, M.D., M.Ed., FASA
David Moore, M.D.
Vijal N. Patel, M.D.
David Sanusi, M.D.
Lingesh Sivanesan M.D. CPE FASA
John H. Stephenson, M.D., FASA
William M. Taylor Jr, M.D.
Jason E. York, M.D.
Annie Yao, M.D., M.P.H.

Physician Emeritus
PSA honors the distinguished medical career of some of its retired physicians who have made extraordinary contributions by bestowing the status of Physician Emeritus.
- James L. Carlson, M.D.
- Donn A. Chambers, M.D.
- Stan Mogelnicki, M.D.
- Steve Sween, M.D.

PSA utilizes the anesthesia care team. The members of the team are an anesthesiology board-certified medical doctor and a highly-trained non-physician anesthetist. Anesthetists in PSA may be either certified anesthesiologist assistants (CAA) or certified registered nurse anesthetists (CRNA). PSA prides itself in the singular quality of its anesthetist staff. PSA anesthetists are highly skilled in the care of the critically ill patient undergoing major surgery. Advanced practice providers (APP) are also involved in your care and an integral part of our team, particularly in the preoperative and postoperative care.

Senior Chief Anesthetist:
- Barry Hunt, CAA, RRT, MBA

Associate Chief Anesthetists:
- Katherine L Hunt, CAA
- Mohammad Pradhan, CAA

Lead APP:
- Laura Stanley, AGACNP

Careers at PSA