Our Team

At Poplar Springs Hospital, we pride ourselves on our skilled and dedicated professionals. Get to know some of the caring individuals at Poplar Springs.

Michael Triggs portrait

Michael S. Triggs
Chief Executive Officer

Quian Buford portrait

Quian Buford
Associate Administrator

Naharia Holt Elliott portrait

Dr. Naharia Holt-Elliott
Director of Military and Outpatient Services

LeMar Taliaferro portrait

LeMar Taliaferro
Director of Business Development

Mysti Nichols portrait

Mysti Nichols
Director of Admissions for RTC & Outpatient Services

Mary McCormick portrait

Mary McCormick
Business Office Director

Dawn Saunders portrait

Dawn Saunders
Chief Nursing Officer

Amie Pathmann portrait

Amie Pathmann
Director of Clinical and Outpatient Services

Darius Robinso portrait

Darius Robinson
Director of Residential Treatment Center

Amber Nesbet portrait

Amber Nesbett
Director of Risk Management

Nichele Ford,Director of Education
Wendy Berryman, Chief Financial Officer
Kim White, Director of Human Resources
Tashia Brewer, Director of Admissions – Acute

Medical Director

Dr Simon portrait

Thresa Simon, M.D., MSHA — Medical Director
Board Certified in Child and Adolescent Psychiatry

Dr. Simon is the Medical Director for the facility and oversees all the clinical services for the hospital. In addition, Dr. Simon is part of Virginia South Psychiatric and Family Services.

Dr. Simon received her medical degree from Stanley Medical College in Madras, India. She continued her training with an internship at the University of Virginia in Charlottesville, Va., and her residency at the Medical College of Virginia in Richmond, Va. She also received a Master of Science in Health Administration from Virginia Commonwealth University. Dr. Simon is Board Certified in Child and Adolescent Psychiatry as well as Adult Psychiatry.

She is a member of the American Academy of Child & Adolescent Psychiatry and the American Psychiatric Association.


Muhammad Abbas portrait

Muhammad Abbas, M.D.

Doctor of Medicine graduate from Allama Iqbal Medical College, Lahore, Pakistan. Residency in Psychiatry – Howard University Hospital, Washington D.C. Member of the Alpha Omega Alpha Honor Medical Society. Board Certified in Adult Psychiatry & Licensed in Virginia to practice Medicine. Special interest in Mood disorders, Anxiety disorders, Trauma-related disorders, and substance use disorders.

Dr Siddiqui portrait

Salman Siddiqui, M.D.

Dr. Siddiqui serves as our Clinical Director of Boys Residential Treatment Program. He received his medical degree from Dow Medical College, University of Karachi, Pakistan. He continued his education as a resident at Bronx-Lebanon Hospital Center in Bronx, N.Y., and a fellow at University of Maryland in Baltimore, Md. He is Board Certified in Adult, Child and Adolescent Psychiatry.

Dr. Siddiqui is a member of the American Psychiatric Association and American Medical Association.

Mohammad Mubbsarhar, M.D.

Dr. Mubbsarhar received his Doctor of Medicine degree from Wah Medical College, Pakistan, and completed his adult psychiatric residency at Duke University Hospital. He served at a Child and Adolescent Psychiatric Fellowship at Johns Hopkins Hospital. Dr. Mubbsarhar is licensed in Virginia to practice medicine and is board certified in adult psychiatry and board-eligible in child and adolescent psychiatry.