Our Management Team

Louis B. Rice, MD is the Chairman of the Department of Medicine, Joukowsky Family Professor of Medicine, and Professor of Molecular Microbiology & Immunology at the Warren Alpert Medical School of Brown University, and the Physician-in-Chief of Medicine at Rhode Island Hospital and The Miriam Hospital in Providence, RI. He also serves as the Executive Physician-in-Chief of Medicine at the Providence Veterans Administration Medical Center and Women & Infants Hospital. Dr. Rice is also the President of Brown Medicine, Inc. a non-profit, academic, multi-specialty medical group with practice in Providence, RI and its surrounding communities.

Dr. Rice previously served as Professor of Medicine at Case Western Reserve University in Ohio and as Chief of Medical Service at the Cleveland VA Medical Center as well as Vice Chairman of the Department of Medicine at the University Hospitals of Cleveland. He is a member of the American Society for Microbiology (ASM) and former Editor-in-Chief of the ASM journal, Antimicrobial Agents and Chemotherapy; the Infectious Disease Society of America, where he was formerly on the Board of Directors, chairing the research committee and the research on resistance working group; and is a fellow of the American College of Physicians. and a member of the Association of American Physicians.

Dr. Rice received his undergraduate degree from Harvard University and his medical degree from Columbia University College of Physicians and Surgeons. He completed his internship and residency in medicine at New York University Medical Center. He also completed clinical and research fellowships in infectious diseases at the former New England Deaconess Medical Center and Harvard Medical School.

He served as the Chair of the National Institutes of Health study section on drug discovery and mechanisms of antimicrobial resistance and for 10 years as associate editor of Antimicrobial Agents and Chemotherapy; was the Inpatient Teacher of the Year at University Hospitals and Cleveland VA Medical Center; received the Kaiser-Permanente Award for Teaching Excellence; served as the keynote speaker as the 46th Interscience Conference on Antimicrobial Agents and Chemotherapy and delivered the Maxwell Finland Lecture at the National Meeting of the Infectious Diseases Society of America in 2007.

Dr. Rice is an international authority on antimicrobial resistance in bacteria. His research interests include understanding the mechanisms of antibiotic resistance in bacteria; preventing hospital infections; and developing antibiotic usage strategies that will minimize the emergence and spread of antibiotic resistance.

Angela M. Caliendo, MD, PhD joined the faculty at Brown in 2013. Dr. Caliendo is the Warren Alpert Foundation Professor of Medicine and Executive Vice Chair of the Department of Medicine at the Warren Alpert Medical School of Brown University. Dr. Caliendo also serves as the Vice President of Brown Medicine and President of Brown Physicians, Inc. Dr. Caliendo is an Editor for the Journal of Clinical Microbiology, Secretary for the Infectious Diseases Society of America, and a Fellow of the Infectious Diseases Society of America and the American Academy of Microbiology.

Dr. Caliendo received a PhD (Biochemistry) and MD from Case Western Reserve University School of Medicine and completed an internship and residency in Internal Medicine at Brigham and Women’s Hospital in Boston, MA and an Infectious Diseases fellowship at Massachusetts General Hospital in Boston, MA. After completing fellowship training, she joined the faculty at the MGH as an Assistant Director of Microbiology with responsibilities for the clinical virology and molecular diagnostics sections of the laboratory.

In 1999 she joined the faculty at Emory University School of Medicine, initially as the Medical Director of the Microbiology and Molecular Diagnostics Laboratories and later became the Director of Emory Medical Laboratories, and Professor and Vice Chair of Pathology and Laboratory Medicine.

Ann Kashmanian, CPA, MBA, is the Chief Executive Officer of Brown Medicine. Ann is a graduate of the College of the Holy Cross and received Masters’ degrees in Business Administration, and the Science of Accounting at Northeastern University. Her responsibilities at Brown Medicine as Chief Executive Officer include developing a strategic financial plan to allow Brown Medicine to thrive in a rapidly changing health care environment, exploring new business models to optimize our relationships with our health care partners and coordinating our internal financial management structure and practices. She is accountable for executing the strategic vision of the organization as defined by the physician leadership to support the organization’s tripartite mission of clinical care, teaching, and research.

She was Brown Medicine’s Chief Financial Officer prior to her promotion to Chief Executive Officer of the organization. She has been active in financial management in the health care sector of Rhode Island since 1987. She served in a number of executive roles for the Lifespan Corporation for over 16 years, including Senior Vice President of Financial Operations and Care Management for the Lifespan System, Vice President Finance for Rhode Island Hospital and The Miriam Hospital, and Treasurer and CFO of Newport Hospital.

Peter Hollmann, MD is the Chief Medical Officer of Brown Medicine. He is an Assistant Clinical Professor of Family Medicine. Prior to coming to Brown Medicine he served as a medical director of Blue Cross and Blue Shield of RI for 25 years while maintaining a primary care practice in general internal medicine and geriatrics.

Dr. Hollmann received undergraduate and medical degrees from Brown University. He trained in Internal Medicine and Geriatric Medicine, also at Brown. In 2015 he joined Brown Medicine. He is a board member of the American Geriatrics Society, RI Medical Society and past Chair of the AMA CPT Editorial Panel. He represents the American Medical Association on the AMA Specialty Society RBRVS Update Committee (RUC) and is a member of the NCQA Geriatric Measures Advisory Panel. He is active is state-wide healthcare transformation efforts.

Tammy Lederer is the Chief Human Resources Officer of Brown Physicians, Inc. She is a graduate of University of Rhode Island (Kingston) and holds a Bachelor of Science degree in Business Administration. For the past 30 years, Tammy has worked in for-profit, academic and non-profit healthcare sectors with over 15 of those years in human resources leadership.

Prior to joining Brown Medicine in 2004, she served as a Human Resources Representative for Lifespan focusing on recruitment and employee and labor relations. Tammy has earned professional human resources certification from the Society of Human Resources Management (SHRM) and is a member of the Medical Group Management Association, American Institute of Management, American Society for Healthcare Human Resources Administration, and Rhode Island SHRM. In her role at Brown Medicine, Tammy leads the Human Resources functions at Brown Medicine, a founding partner of Brown Physicians, Inc.

David Hemendinger has a BS in Design from State University College at Buffalo, NY and an Executive Master of Business Administration in Healthcare from Bryant University. He previously was the Vice President/Chief Technology Officer at Lifespan. Most recently David worked with Hope Health, Inc. as the CIO/Chief information Security Officer/Emergency Management Chief.