About OBHG


Our History Our Approach Our Team Christopher C. Swain, M.D. David C. Swain Leonard (Lenny) Castiglione Kevin Krenzke Marc L. Kerlin Mark N. Simon, MD, MMM, CPE Traci Bowen Barbara Fry Christie Cook Buchholz Heather Moore, CPHRM, CHC, AIAF, ARC Tama LeBlanc Clifford J. Lawrence, Esq. Charlie Jaynes, MD Nicholas Kulbida, MD Jane van Dis, MD, FACOG Susie Kady Wilson, MD Charles Rollison, DO, MHA, FACOOG Sue Smith, MD Rakhi Dimino, MD Alissa Erogbogbo, MD Don Toatley, MD Amy VanBlaricom, MD Stephen T. Bashuk MD Core Values, Vision, Mission Awards and Recognition
"The second night after OBHG started, a woman came in with an abruption and needed a stat C-section surgery. The OBHG physician got her into surgery within 16 minutes vs. the standard of 30 minutes. This probably averted a disaster and went a long way in confirming our decision with the nurses and local groups."

– RN, Administrative Director, Women’s and Children’s Services at St. Mary’s Hospital Bon Secours Health in Richmond, VA

Ob Hospitalist Group Founders

David C. Swain
Executive Chairman and Co-founder

Executive Management

Leonard (Lenny) Castiglione
Chief Executive Officer
Kevin Krenzke
Chief Financial Officer
Marc L. Kerlin
Chief Growth Officer
Mark N. Simon, MD, MMM, CPE
Chief Medical Officer
Traci Bowen
Chief Human Resources Officer
Barbara Fry
Vice President of Hospital Operations
Christie Cook Buchholz
Vice President of Program Value and Strategy
Heather Moore, CPHRM, CHC, AIAF, ARC
Vice President of Risk Management, Quality & Compliance
Tama LeBlanc
Vice President of Information and Technology

Clinical Leadership

Charlie Jaynes, MD
Senior Director of Medical Operations
Nicholas Kulbida, MD
Medical Director of Operations
Jane van Dis, MD, FACOG
Medical Director for Business Development
Susie Kady Wilson, MD
Medical Director of Operations
Charles Rollison, DO, MHA, FACOOG
Medical Director of Operations
Sue Smith, MD
Medical Director of Operations
Rakhi Dimino, MD
Medical Director of Operations
Alissa Erogbogbo, MD
Medical Director of Operations
Don Toatley, MD
Medical Director of Operations
Amy VanBlaricom, MD
Medical Director of Operations
Stephen T. Bashuk MD
Medical Director of Operations