Leadership & Staff

Louis Collier

Louis Collier


Louis Collier was named CEO of HealthSouth Rehabilitation Hospital of Petersburg in January 2018. His career in healthcare spans 30 years and includes serving in senior leadership roles with IPC, The Hospitalist Company, Wellmont Health System and Reliant Rehabilitation. His experience spans multiple areas of leadership in acute care and post-acute care. Louis earned his bachelor’s degree from The University of Virginia at Wise and has completed multiple leadership courses. 

Martin Yee, M.D

Martin Yee, M.D

Medical Director

Born and raised in Southern California, Martin Yee, M.D. is a double graduate from the University of Southern California, holding a bachelor’s degree in biology and a medical doctorate degree from USC’s Keck School of Medicine. He completed his internship and residency at the University of California, Irvine with an emphasis in internal medicine, spinal cord injury and brain. He has been board certified in physical medicine and rehabilitation since the completion of his residency in 1997. He worked as chief of staff/medical director at HealthSouth in Reno/Tahoe, Nevada, and served as medical director at HealthSouth East Valley, before serving as medical director for acute inpatient rehabilitation units at both Northwest Medical Center and Oro Valley Hospital in Tucson, Ariz. Dr. Yee moved to Richmond, Virginia in 2018 to become the medical director at HealthSouth Petersburg. In his spare time, Dr. Yee enjoys cooking, traveling, hiking, biking, and spending time with his wife and two sons. 

Lisa Barker

Lisa Stewart Barker, CHHR, SPHR, SHRM-SCP

Director of Human Resources

With the hospital since the opening in June 2006, Lisa serves as the human resources director. Her background in human resources includes extensive experience in recruiting, employee relations, employee engagement, training and development. She is nationally certified as both a senior Professional in Human Resources (SPHR), a Society for Human Resource Management Senior Certified Professional (SHRM-SCP), and is Certified in Healthcare Human Resources (CHHR). Lisa is a member of the national and state SHRM as well as the American Society for Healthcare Human Resources Administration (ASHHRA) of the American Hospital Association, and the Virginia Society for Healthcare Human Resources Administration (VaSHHRA). A lifelong area resident, Lisa also volunteers as a World Vision Child Ambassador.

Towanda Brown

Towanda Brown

Quality/Risk Director

Towanda is the Quality/Risk Director at HealthSouth Petersburg. Prior to joining HealthSouth, she lead performance improvement, compliance and risk programs for more than 10 years. In the last seven years, she has served as the facilitator for CMS and The Joint Commission surveys as well as a director of major initiatives to improve practices and processes throughout acute and behavioral healthcare settings. Her ultimate goal is to achieve quality care and services for patients and their families. She prides herself on building team collaboration and improving practices and processes. Towanda holds a bachelor’s degree in human and social resources from Sojourner-Douglas College and a master’s degree in business administration from University of Phoenix. She has been a resident of Richmond, Virginia, for seven years, but is a native of Baltimore, Maryland.

Thomas Krigbaum

Thomas Krigbaum

Director of Plant Operations

Thomas Krigbaum came to HealthSouth Petersburg with approximately 25 years of experience with 22 of those being in a hospital setting. Before transferring to HealthSouth Petersburg, Tom served as the director of plant operations at HealthSouth Northern Virginia in Aldie.

A native of Wisconsin, Tom enjoys painting, remodeling, taxidermy and making stain glass windows. Tom spends as much time as possible with his wife, daughter, son and four grandchildren.

Chanel Mabry

Chanel Mabry

Director of Case Management

In 2007, Chanel Mabry came to HealthSouth starting as a receptionist at our Richmond, Va. location. Chanel held various positions at the Richmond location including case manager where she was a staunch advocate for patient rights and satisfaction. In 2018, she was promoted to director of case management at our hospital. Chanel earned her undergraduate degree at Virginia Commonwealth University and is currently working toward a master’s degree in clinical social work. 

Kristen Porter

Kristin Nieves, DPT

Director of Therapy Operations

Kristin’s career as a physical therapist has been focused in the inpatient rehabilitation setting and she has been with HealthSouth since 2008. She began her career as a physical therapist at HealthSouth Rehabilitation Hospital of Rock Hill, SC and joined the HealthSouth Petersburg team as lead physical therapist in 2013. Kristin was then  promoted to  director of therapy operations in 2014. She received her undergraduate degree and a Master of Science in exercise sports science in 2005 and her doctorate in physical therapy in 2008  from Elon University. Kristin is an active member of the American Physical Therapy Association, as well as, the Virginia Physical Therapy Association and she resides in Richmond, VA.

Ann Norford

Ann Norford


Ann joined HealthSouth in May 2007 as the assistant controller at HealthSouth Rehabilitation Hospital of Virginia in Richmond and was promoted to controller at Petersburg in 2008. She came to HealthSouth with more than 20 years of accounting and finance experience, including healthcare, service and public accounting. She holds a bachelor’s degree in accounting from Miami University. Ann is married, has two children and resides in Midlothian.

Lauri Robinson

Lauri Robinson, RN

Business Development Director

Lauri started out her professional life in sales and marketing. She began on the ground floor by selling advertising space for local news publications and later moved to marketing air time for television commercials. She gained experience as a supervisor by working as a regional director of sales. During that time she volunteered as an EMT, and eventually earned a "glitter patch" as a nationally registered paramedic. While providing emergency medical care to people in need, she decided to return to school to pursue an education in nursing and went on to become a registered nurse. Her nursing career began in the emergency room of a level 3 trauma center. Lauri never dreamed she would be able to combine those two, very diverse, career choices into one position, but then she became aware of the unique world of a HealthSouth rehabilitation liaison. In July 2015, Lauri joined HealthSouth Petersburg as senior liaison. She was promoted to the director of marketing position in January 2016, where she is part of an exemplary team of professionals that provide a much-needed service to our community, and is proud to be a part of the HealthSouth family.

Patrick Sears

Patrick Sears, R.Ph

Director of Pharmacy

Patrick joined HealthSouth in 2014, bringing almost 20 years of pharmacy experience in both the community and hospital acute care settings. Originally from the Seattle area, he earned his pharmacy degree from the University of Washington School of Pharmacy in 1995, and is now working on his master's degree in business administration through the University Of Massachusetts at Amherst. He is also an adjunct professor/preceptor with the VCU School of Pharmacy, and a member of the American College of Healthcare Executives. He currently resides in Midlothian, Virginia with wife, Heidi and two sons.

Lacresha J. Tally

Lacresha J. Tally, MSN, RN

Chief Nursing Officer

Lacresha came to HealthSouth Petersburg with more than 14 years of clinical and management experience in cardiac medicine, critical care, and ambulatory care. She received her Bachelor of Science in nursing from Winston-Salem State University and her Master of Science in nursing from George Mason University. Lacresha is a graduate of the Nurse Leadership Institute of Virginia. She has a passion for quality of care and patient safety. She is a member of the American Nurse Association and American Association of Critical-Care Nurses. Lacresha is a native of Henderson, North Carolina.