USU LEAD Faculty and Staff

Rutgers College
New Jersey School of Osteopathic Medicine
Army War College

Dr. Chuck Callahan is the Vice President of Population Health at the University of Maryland Medical Center. He is a retired Army colonel and physician executive with more than thirty years of experience who has served in a range of hospital leadership positions from PICU service chief to hospital chief medical officer, chief operating officer and chief executive officer. After retirement he worked as a Professor of Pediatrics at the F. Edward Hébert School of Medicine of the Uniformed Services University, Bethesda Maryland. He holds a primary appointment in the Department of Pediatrics and a secondary appointment as Professor of Military and Emergency Medicine. In 2014 he volunteered to care for patients in an Ebola Treatment Unit in Sierra Leone during the height of the epidemic in West Africa. In the fall of 2015 he transitioned to his position at the University of Maryland Medical Center in Baltimore, supporting the medical center’s efforts to improve the health and well-being of the people of West Baltimore.
Dr. Callahan is board certified in pediatrics and pediatric pulmonology. He has received numerous teaching awards and has lectured broadly on leadership and “the culture of excellence” in medicine. He is the author of more than one hundred abstracts, articles, books and book chapters on leadership and medicine, and has been awarded more than two million dollars in research grants in asthma, telemedicine and population health.

B.S., Medical Microbiology, Stanford University (1975)
M.A. (1977), M.Phil. (1979), and Ph.D. (1980) degrees in Physiological and Social Psychology, Columbia University
Doctoral training in Pharmacology, Columbia University’s College of Physicians & Surgeons under a National Research Service Award (1976-79).

Neil E. Grunberg, Ph.D., is Professor of Military & Emergency Medicine (MEM), Medical & Clinical Psychology (MPS), and Neuroscience (NES) in the Uniformed Services University (USU) School of Medicine (SOM); Professor in the Graduate School of Nursing (GSN); Director of Research and Development in the USU Leadership Education and Development (LEAD) program; and Director of Faculty Development for MEM. He is a medical and social psychologist who has been on faculty at USU since 1979. His role in LEAD is to ensure that the LEAD program and sessions are based upon sound evidence and scholarship and to oversee research relevant to leadership education and training (see www.usuhs.edu/usulead).

Dr. Grunberg earned baccalaureate degrees in Medical Microbiology and Psychology from Stanford University (1975); earned M.A. (1977), M.Phil. (1979), and Ph.D. (1980) degrees in Physiological and Social Psychology from Columbia University; and received doctoral training in Pharmacology at Columbia University’s College of Physicians & Surgeons under a National Research Service Award (NRSA, 1976-79). Dr. Grunberg helps train physicians, psychologists, and nurses to serve in the Armed Forces or Public Health Service, and scientists for research positions. He has published 200 papers addressing behavioral medicine, stress, and leadership. Dr. Grunberg has received awards from the U.S. Surgeon General, CDC, FDA, American Psychological Association, NIH, Society of Behavioral Medicine, and USU. He has served as President of the USU Faculty Senate and has chaired USU committees including: Strategic Planning; Manpower; Health, Safety, and Wellness; Appointment, Promotions, and Tenure. Outside USU, he has chaired Working Groups for the MacArthur Foundation and Robert Wood Johnson Foundation. In 2015, Dr. Grunberg was selected as a Presidential Leadership Scholar (PLS).

Dr. Grunberg and his research group (see www.usuhs.edu/faculty/grunberg) study leadership, stress (psychological and physical, including mTBI and PTSD), and appetitive behaviors (including nicotine, alcohol, caffeine, and food consumption). His teaching includes topics in leadership, social psychology, psychobiology, behavioral neuroscience, and sports psychology.

Dr. Grunberg has supervised 36 doctoral dissertations in Medical Psychology, Clinical Psychology, and Neuroscience, and has served on many master and doctoral degree committees. He currently is training a GSN Ph.D. student. In addition, he mentors faculty members in MEM in his role as MEM Director of Faculty Development.

Ph.D., University of Massachusetts

Dr. Lauren Mackenzie is Professor of Military Cross-Cultural Competence at Marine Corps University in Quantico, VA. She also chairs the Marine Corps University faculty council and serves as an adjunct Professor of Military/Emergency Medicine at the Uniformed Services University of Health Sciences.

Dr. Mackenzie is the 2020 civilian faculty recipient of the Marine Corps University Rose Award for Teaching Excellence. She earned her M.A. and Ph.D. in Communication from the University of Massachusetts and has taught intercultural and interpersonal communication courses throughout the Department of Defense over the past twelve years. Her research interests revolve around the impact of cultural differences on difficult conversations, and she has written a range of articles and book chapters devoted to such areas as: end-of-life communication, relationship repair strategies, and, most recently, the role of failure in teaching and learning. Dr. Mackenzie’s most recent publications have been featured in the Marine Corps University Journal and the Journal of Military Learning. She is also the co-author with Dr. Kerry Fosher of the Culture General Guidebook for Military Professionals and the forthcoming edited volume Best Laid Schemes: Reflecting on 15 Years of DoD Culture Programs. She lives in Fredericksburg, VA with her husband and two sons.

1987 - 1989 Fellow, Pulmonary Disease and Critical Care Medicine
Walter Reed Army Medical Center, Washington, DC

1980 - 1983 Intern and Resident, Department of Internal Medicine
USAF Medical Center Keesler, Keesler AFB, Mississippi

1980 Doctor of Medicine
Jefferson Medical College
Philadelphia, Pennsylvania

1978 Bachelor of Science
The Pennsylvania State University
State College, Pennsylvania

Dr. McManigle is a native of Emporium, Pennsylvania and graduated from Cameron County High School, The Pennsylvania State University, and Jefferson Medical College prior to entering the United States Air Force Medical Corps in 1980. Dr. McManigle completed Internal Medicine training at USAF Medical Center Keesler, Keesler AFB, Mississippi and was selected to serve as Chief of Residents. Following his year as Chief of Residents, Dr. McManigle was assigned to RAF Lakenheath, United Kingdom as a Staff Internist. While at Lakenheath, Dr. McManigle also served as Director, Cardiopulmonary Services; Chief, Allergy Immunization Clinic; and Primary Member of the Air Transportable Hospital. Dr. McManigle then pursued further specialty training in Pulmonary and Critical Care Medicine at Walter Reed Army Medical Center. Dr. McManigle later served as Chair, Department of Internal Medicine, Malcolm Grow Medical Center, Andrews Air Force Base, Maryland.

While at Walter Reed Army Medical Center as a Pulmonary and Critical Care Medicine Fellow, Dr. McManigle’s association with the Uniformed Services University of the Health Sciences began. Dr. McManigle has served a variety of roles at USU, to include faculty member, course director, Assistant Dean of Clinical Sciences, Deputy Dean, and Acting Dean. In addition, he has served on numerous high level committees including Admissions, Executive Curriculum, Student Promotion, Graduate Education, Middle States, and LCME Executive Committees. Currently, Dr. McManigle, partnering with colleagues Dr. Eric Schoomaker and Dr. Neil Grunberg, is focused on developing the F. Edward Hébert School of Medicine Leadership Education and Development (LEAD) Program.

In January 2007, the Air Force designated Dr. McManigle a Clinical / Academic Grand Master in recognition for his outstanding career accomplishments in academic and clinical medicine. The USU SOM Class of 2007 named Dr. McManigle as recipient of the William P. Clements Award for Excellence in Education. In addition, in 2009 the American College of Physicians named Dr. McManigle a Laureate of the American College of Physicians.

2003-2005: Department of Preventive Medicine and Biometrics
Uniformed Services University of the Health Sciences
Bethesda, Maryland
Degree: Masters in Public Health

1991-1992: Primary Care Sports Medicine Fellowship
Nirschl Orthopedic and Sports Medicine Center
Arlington, Virginia

1985-1988: Family Medicine Residency
St. Joseph's Hospital Health Center
301 Prospect Avenue
Syracuse, New York

1981-1985: State University of New York
Health Science Center
750 E. Adams Street
Syracuse, New York
Degree: Doctor of Medicine

1977-1981: United States Military Academy (USMA)
West Point, New York
Concentration: Basic Science
Degree: Bachelor of Science

Francis G. O’Connor, MD, MPH, Professor and Medical Director for the Consortium for Health and Military Performance, Uniformed Services University, has been a leader in sports medicine education and research for the military for over 30 years. Dr.O’Connor has authored over 100 peer reviewed articles in scientific journals and numerous book chapters/technical reports/health promotion resources for the military. In addition, Dr. O’Connor is the editor of eight texts on sports medicine including, the Textbook of Running Medicine, and Sports Medicine for the Primary care Physician 3rd Edition and ACSM’s Sports Medicine: A Comprehensive Review. He has been on the board of several leading organizations in sports medicine including the American College of Sports Medicine (ACSM), and the American Medical Athletic Association and is a past President of the American Medical Society of Sports Medicine. A Colonel in the United States Army, Dr. O’Connor is a graduate of the United States Military Academy at West Point, and prior to his recent posting at Uniformed Services University in the Department of Military Medicine, served one year as a Command Surgeon with Special Operations in the Middle East. Dr. O’Connor is recipient of several awards for excellence in sports medicine research and education including the Korey Stringer Institute’s Korey Stringer Institute Lifesaving Research Award, presented by the NFL and Gatorade in 2012, and he was recently selected for an ACSM 2016 Citation Award, as well as the AMSSM's Founder's Award in 2017. He is a past Chair of the Department of Military and Emergency Medicine.

EDUCATION

1999-2000 U.S. Army War College, Carlisle Barracks, PA
Degree: Masters in Strategic Studies

1978-1979 Fellow in Hematology/Oncology (PGY3); Hematology/Oncology Division, Duke University Medical Center, Durham, NC

1977-1978 Junior Assistant Resident in Medicine (PGY2); Duke University Medical Center, Durham, NC

1976-1977 Intern in Medicine (PGY1); Duke University Medical Center, Durham, NC

1975-1979 University of Michigan Rackham School of Graduate Studies, Ann Arbor, MI
Degree: Ph.D. (Human Genetics)

1971-1975 University of Michigan Medical School, Ann Arbor, MI
Degree: M.D. (With Honors)

1966-1970 University of Michigan, Ann Arbor, MI
Degree: B.S. (Zoology-Anthropology)

Eric B. Schoomaker, MD, PhD
Lieutenant General, U.S. Army (Retired)
Professor Emeritus
Department of Military and Emergency Medicine, F. Edward Hebert School of Medicine
Uniformed Services University of the Health Sciences, Bethesda, MD
Former U.S. Army Surgeon General and
Commanding General of the U.S. Army Medical Command

Prior to his retirement after 32 years of active service, Lieutenant General (Retired) Eric B. Schoomaker, MD, PhD served as the 42nd U.S. Army Surgeon General & Commanding General of the U.S. Army Medical Command. He committed his career to meeting the health needs of soldiers, their families and veterans throughout the U.S., Europe and the Pacific, focusing on soldier medical readiness, enhancing battlefield care, establishing comprehensive behavioral healthcare, fostering a culture of trust, advancing comprehensive pain management, and promoting health by preventing combat wounds, injury and illness.

He is a Professor Emeritus in the Department of Military & Emergency Medicine, F. Edward Hebert School of Medicine at the nation’s only Federal health university, the Uniformed Services University of the Health Sciences (USU) in Bethesda, MD. His principal interests are in both Complementary and Integrative Health & Medicine (CIHM) in the shift from a disease management-focused healthcare system to one more centered on the improvement and sustainment of health & well-being leading to optimal human performance. He promotes CIHM education and training for physicians and other health professionals, especially as they contribute to the management of acute and chronic pain. Doctor Schoomaker is also exploring the central importance of leadership education and training for health professionals, so as to realize USU’s vision as the nation’s “health leadership academy”.

Michael F. Seelman is a volunteer instructor in the USU Leadership Education and Development (LEAD) program. He serves the global community as a leadership coach, consultant, and inspirational speaker. He is a member of Marshall Goldsmith’s (World’s #1 Executive Coach) elite team of certified executive coaches. He has coached over 100 leaders in North America, Europe, Asia, Africa, and Australia to bring out their best performance and a more fulfilled life.

Michael's clients include executives in major corporations such as Google, Amazon, Microsoft, Salesforce, and Reddit as well as leaders in organizations such as the U.S. Department of Homeland Security, The American Heart Association, and the National Institutes of Health. They have executive roles in information technology, biotechnology, marketing, human resources, administration, operations, and other functions. He listens deeply to clients and tailors his methodology to their needs. He employs 360-degree leadership assessment data, powerful questions, mindfulness techniques, music, action plan development, leadership theories, happiness research, leadership articles and videos, improv comedy training, and more to serve clients and their goal(s) fulfillment.

Michael is an inspirational speaker on topics of leadership, happiness, innovation, and collaboration. He brings deep expertise and improv comedy playfulness to the presentations he delivers. He has trained corporate executive teams on leadership, FBI supervisors on communications and leadership principles, delivered two university commencement addresses, spoken about the future of collaboration on an international leadership panel with a Member of the UK Parliament, and expertly facilitated discussion with audiences as diverse as police chiefs, high school student leaders, Italian coaches, Harvard University alumni, Australian corporate leaders, and international intelligence agency executives.

Michael is always learning and growing so that he can increase the impact of his service. He is currently conducting original research into leading human-machine (artificial intelligence) teams. His team was selected by the International Leadership Association (ILA) to present their initial findings at the ILA’s Global Conference 2018. Recently he became one of the first coaches certified in psychological safety assessment and team coaching and was selected as one of a handful of coaches in the world to be certified to train others in psychological safety assessment. In 2019 he presented at the ILA's Global Conference on promoting healthcare leadership through executive coaching and creating a climate of psychological safety. In addition, he has earned the Professional Coach Certification (PCC), the second-highest credential from the International Coach Federation.

Previously Michael served for 19 years in the Federal government including leadership positions at the White House, U.S. Department of Homeland Security (DHS), U.S. Department of Justice (DOJ), and Federal Bureau of Investigation (FBI) – with roles in information technology, innovation, communications, employee engagement, intergovernmental liaison, knowledge management, human resources/leadership development, administration, and high-profile multi-agency initiatives. For more than a decade at the FBI he served as the first global chief of internal communications, as the deputy chief knowledge officer (intersection of people, processes, IT systems, and innovation), as a principal business advisor reporting directly to the CFO, and the co-director of a multi-agency law enforcement team leading violence reduction efforts in the country’s most violent cities.

Michael did his undergraduate thesis and collaborated on a book with leadership scholar and Pulitzer Prize-winning author James MacGregor Burns and Georgia Sorenson at the University of Maryland. He received his master's degree in public administration from Harvard University where he did his master's thesis project with leadership scholar Ronald A. Heifetz. He is currently pursuing a Ph.D. in Organizational Leadership at the University of Maryland Eastern Shore.

He served as the Vice President of the Board of Trustees for a youth leadership development nonprofit and in many training, mentoring, and facilitation roles for nearly three decades as a volunteer. In 2012, he graduated from the U.S. military’s prestigious Advanced Management Program and received his Chief Information Officer (CIO) certification from the National Defense University.

Ph.D., Business Studies, Trinity College (Dublin, Ireland)
B.A. degree, Wellesley College (Wellesley, MA)

Erin E. Sullivan, Ph.D., is the Research and Curriculum Director at the Harvard Medical School Center for Primary Care. In this role, Erin leads the Center’s research program, where her team studies high performing domestic and international primary care systems. She also holds a faculty appointment in the Department of Global Health and Social Medicine. Erin co-directs the Physician as Leader course for fourth year medical students as well as two Leadership Academies for primary care teams (one in Boston, one virtual/national).

Prior to joining the Center, Erin worked at the Global Health Delivery Project at Harvard University, where she initially focused on developing a Master’s level global health curriculum before moving on to direct a series of mixed methods health systems studies focused on HIV, TB and malaria programs in resource-limited settings. She served as the qualitative methods expert for these studies, designing interview tools, focus group guides and analysis plans for her team and 14 partner institutions. This research yielded technical reports for academic and large international health institutions (e.g. WHO, UNAIDS).

While at the Global Health Delivery Project, Erin also co-directed the management seminar within the Global Health Effectiveness Program at Harvard’s School of Public Health and served as a Faculty Member for Global Entrepreneurship Lab GHD, MIT Sloan’s flagship international project-based class.

Erin holds a Bachelor of Arts in Art History from Wellesley College and a Ph.D. in Business Studies from Trinity College, Dublin.

Bachelor of Science, US Naval Academy, Annapolis, MD--1984
Doctor of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD--1993
Categorical Medicine Internship, National Naval Medical Center, Bethesda, MD--1994
Undersea and Hyperbaric Medicine Course, Naval Undersea Medical Institute, Groton, CT--1994
Orthopaedic Surgery Residency, Naval Medical Center, San Diego, CA--2001
Orthopaedic Spine Surgery Fellowship, Twin Cities Spine Center, Minneapolis, MN--2002

Joseph Weistroffer is the Orthopaedic Surgery Residency Program Director at Western Michigan University Homer Stryker M.D. School of Medicine where he is establishing a comprehensive program to develop leaders at all levels of medical education.

He graduated from the Uniformed Services University of the Health Sciences and was a Categorical Medicine Intern at the National Naval Medical Center. After his Orthopaedic Surgery Residency at the Naval Medical Center San Diego, he completed the Twin Cities Spine Center Fellowship in Minneapolis, Minnesota.

His experiences in Orthopaedic Surgery include positions as Vice Chairman at the Naval Medical Center San Diego, founding Orthopaedic Spine Surgery Fellowship Director at Northwestern University in Chicago and full partner at New England Neurological Associates outside Boston, Massachusetts.

Dr. Weistroffer's interest in the study of leadership was founded at the US Naval Academy in Annapolis, Maryland and enriched during a semester at the US Military Academy at West Point and through his experience as a Marine Corp Platoon Commander.

He is fond of his tour as an F-14 Fighter Pilot serving on the Admiral's Staff in San Diego as well as serving as a Submarine Medical Officer for the Navy's Pacific Trident Submarine Fleet in Bangor, Washington. He deployed as Expeditionary Medical Force 10's Orthopaedic Surgeon in Djibouti, Africa in support of the global war on terrorism.

He has served on the Leadership Development Committee for the American Academy of Orthopaedic Surgeons, written the curriculum for their Leadership Fellows Program and currently sits on the Council of Orthopaedic Residency Directors/ Academics Committee for the American Orthopaedic Association. He is this year's Alpha Omega Alpha Honor Medical Society's Fellow in Leadership.

​BA, Indiana University of Pennsylvania, Criminology and Psychology
MS, Uniformed Services University, Bethesda, Md, Medical Psychology
PhD, Uniformed Services University, Bethesda, Md, Medical Psychology

Angela Yarnell is a Distinguished Military Graduate of Indiana University of Pennsylvania, which she attended on a four-year Reserve Officer Training Corps (ROTC) Scholarship and earned her bachelor's degree in Criminology and Psychology in 2005. After college, she commissioned as a 2nd Lieutenant in the Army's Medical Service Corps and served as a medical treatment platoon leader, medical supply officer, and a company executive officer. She was assigned to the 2d Stryker Cavalry Regiment, stationed at Ft Lewis, WA and Rose Barracks, Germany, and served for 15 months in Iraq. Angela's military awards include the Bronze Star Medal for service in Iraq; two Meritorious Service Medals; two Army Commendation Medals; and three Army Achievement Medals. MAJ Yarnell received her Master’s (2012) and PhD (2013) in Medical Psychology from the Uniformed Services University of the Health Sciences (USU), Bethesda, MD. MAJ Yarnell is an Army Research Psychologist who has served as the Deputy Branch Chief of Behavioral Biology and Chief of the Sleep Research Center in the Center for Military Psychology and Neuroscience Research at the Walter Reed Army Institute of Research in Silver Spring, MD. Her research emphasis is psychophysiology and she has investigated the topics of stress and resilience, especially sex differences in stress responses, concussion, effects of repetitive blast exposure, and sleep and performance in the military. MAJ Yarnell also served as an Assistant Professor in the Behavioral Science and Leadership Department at the United States Military Academy at West Point, NY where she taught Psychology for Leaders to cadets. She is currently studying leader development.

MAJ Yarnell is currently the Deputy Professor of Military Science and Assistant Professor of Military and Emergency Medicine at the Uniformed Services University in Bethesda, MD where she is responsible for the university level leader and military professional development program.

Angela and her family spend their free time doing family and church activities.