Current Board Members



Cragin Greene, MHS, PA-C
PA Fellowship Director
Department of Emergency Medicine
Center for Advanced Practice
Carolinas HealthCare System


Cragin Greene MHS, PAC is currently the PA Fellowship Director and System Lead PA for Carolinas HealthCare System in Charlotte, NC. He oversees the operations of the country’s largest and most educationally diverse post graduate PA/NP clinical education program hosting 20 specialties of medicine and surgery. He currently serves as the lead PA for the healthcare system managing PA specific issues and tasks for roughly 400 PAs through his position with the Center for Advanced Practice. He has practiced Emergency Medicine for the past 9 years at the area’s level I trauma center. Prior to Emergency Medicine Cragin practiced in Urgent Care and Cardiology. He graduated from MCPHS (Massachusetts College of Pharmacy and Health Science) in 2004 MHS-PA and attended Syracuse University as an Undergrad, obtaining a Bachelor of Science in Biology. He has worked as an EMT/Paramedic for nearly a decade prior to his career as a PA. His passion for clinical education and the optimization of PAs/NPs with the goal of improving the quality of care was the impetus to facilitate in the development of the fellowship program at Carolinas HealthCare System. Involvement with APPAP has allowed him to learn from other fellowship/residency programs as well as contribute to the development of many new programs. He has been honored to serve as the president of APPAP for 2016 and 2017 allowing a much broader reach in the effort to improve practice and make these educational opportunities more available.



Immediate Past President

Kristen K. Will, MHPE, PA-C
Assistant Clinical Professor, School for the Science of Health Care Delivery and Director of Executive Education, Arizona State University


Kristen Will completed her undergraduate work in Biomedical Sciences at Western Michigan University in 1995 and her Physician Assistant training at Midwestern University, Downers Grove Campus in 1997. She then completed her Master’s in Health Professions Education in 2001 at Midwestern University, Glendale Campus. From 2001-2015, she worked clinically in the Division of Hospital Internal Medicine at Mayo Clinic Hospital in Phoenix, Arizona. Prior to her experience in Hospital Medicine, she practiced in Cardiovascular Surgery and primary care. Along with her clinical duties, she was the Program Director of the Mayo Clinic in Arizona Post-graduate PA Fellowship in Hospital Internal Medicine and Assistant Professor in the Mayo Clinic College of Medicine. She also served on the Mayo Clinic Arizona Education Committee.

Ms. Will also developed and led a large interprofessional workgroup at Mayo Clinic and also currently serves on the ASU Interprofessional Education Workgroup team. Additionally, she is the Immediate Past President of the Association of Postgraduate Physician Assistant Programs.

In her role at ASU, Ms. Will serves as the Director of Executive Education in the College of Health Solutions and is  Clinical Assistant Professor in the School for the Science of Health Care Delivery. Ms. Will’s research interests encompass Interprofessional Education, Health Care Delivery and Team-Based Care Models, Quality Improvement in Health Care.




Amy Haller, MPAS, PA-C
Director, UPMC Advanced Practice Provider Surgical Residency Program
Division of Minimally Invasive Bariatric & General Surgery
University of Pittsburgh Medical Center (UPMC)
Pittsburgh, PA


Amy joined UPMC in 2009 as a Senior Surgical Physician Assistant in the Department of Minimally Invasive Bariatric and General Surgery where she is the lead PA working with the Department Director. In 2012, she alongside direction of the Department of Surgery and Office of Advanced Practice Providers created and launched UPMC Advanced Practice Provider Surgical Residency Program and was selected as Director.

Her clinical duties include outpatient/inpatient care, and assisting in OR as part of The Department of Minimally Invasive Bariatric and General Surgery at Magee-Women’s Hospital of UPMC. As director of the residency program, she is responsible for overseeing the education and clinical training of the PA/NP residents, as well as all administrative details of the program.

Amy graduated from Duquesne University with a Bachelor’s Degree in Health Sciences and a Master’s Degree in Physician Assistant Studies and went on to attend and graduate from the Yale/Norwalk Hospital Surgical Residency for Physician Assistants. She is currently enrolled in the Master’s of Business Administration program with concentration in Healthcare Administration at Chatham University in Pittsburgh, PA . She joined the leadership of APPAP in 2014 and serves as Secretary/Treasurer which she has enjoyed working with top PA/NP leaders across the nation. She enjoys teaching and inspiring other clinicians to achieve their full potential.


Director at Large

W Robert Grabenkort, PA, MMSc, FCCM
Director of NP/PA Residency in Critical Care Medicine, Emory Critical Care Center, Atlanta, GA

rob pic 2012

Rob Grabenkort graduated from Bethel University with majors in Biology and Chemistry and received his Masters in Medical Science from Emory University. He has been a cardiothoracic critical care PA for over 35 years, the last 25 years practicing at Emory Healthcare in Atlanta, GA. For the last 5 years he has been the Director of the NP/PA Critical Care Residency Program under the Emory Critical Care Center. During this period 36 Advanced Practice Providers (APPs) have completed training, most of whom have remained within Emory Healthcare. His additional activities have included active participation in the Society of Critical Care Medicine, where he was PA Section chair from 2000 to 2002. He has lectured and authored several book chapters and articles on the use of APPs in critical care. He was one of the first PAs to be elected as a Fellow of the College of Critical  Medicine. His most recent interest is in the accreditation of clinical postgraduate training programs for PAs.