Dan Hobohm, MD
Chairman of the Board
In January 2010, Dan Hobohm, MD was appointed Chairman of the Board of District Medical Group (DMG), formerly known as Medical Professional Associates of Arizona, (MedPro). From 1995 through 2009, Dr. Hobohm held the positions of Chairman, Vice Chairman and Board member of MedPro.
Dr. Hobohm joined the medical staff of Valleywise Health Medical Center (formerly Maricopa Medical Center) in 1991. He is currently chief medical quality officer, chair of the department of pathology and director of laboratories for Valleywise Health. Dr. Hobohm is renowned for his presentations and lectures both locally and nationally. He is also committed to educating the next generation of medical professionals and is an assistant professor at Creighton University School of Medicine in Phoenix.
Dr. Hobohm completed medical school and an internship in 1983 and 1984 respectively at Wayne State University School of Medicine in Detroit, Michigan. He completed an anatomic and clinical pathology residency at Henry Ford Hospital in Detroit in 1988 and has been board certified in anatomic and clinical pathology since 1988.
Kote Chundu, MD
President and
Chief Executive Officer
Kote Chundu, MD, MMM is the founding president and chief executive officer (CEO) of DMG from its inception in January 2010 as a nonprofit multispecialty medical group. From April 2005 through December 2009, he was the Chairman of the Board of MedPro, the predecessor organization of DMG. Dr. Chundu joined Maricopa Medical Center (now Valleywise Health) in 1992 as the medical director of the pediatric intensive care unit (ICU) and was the medical director of the hospital’s Arizona Children’s Center and chairman of the department of pediatrics from October 2000 to September of 2014.
Prior to his career in Arizona, Dr. Chundu was the associate director of the pediatric ICU at Children’s National Medical Center and assistant professor of pediatrics and anesthesia at George Washington University School of Medicine and Sciences in Washington, DC.
Dr. Chundu received his medical degree from Guntur Medical College in India in 1981 and completed a pediatric residency and neonatology fellowship at Cardinal Glennon Children’s Hospital in St. Louis, Missouri. He also completed a pediatric critical care fellowship at Children’s National Medical Center in Washington, DC in 1989. He is board certified in pediatrics and pediatric critical care medicine. Dr. Chundu also completed a Master of Medical Management at University of Southern California Marshall School of Business in 2011.
As a professor of child health at University of Arizona College of Medicine and professor of pediatrics at Creighton University School of Medicine in Phoenix, Dr. Chundu is committed to the organization’s academic mission to teach medical students and residents. Dr. Chundu is actively involved in local and national community and educational organizations to advance healthcare and keep populations healthy.
Dr. Chundu is a strong believer that cohesive organizations, like DMG, can provide superior quality of care due to its physicians collaborating- instead of competing- and partnering across medical specialties with a nonprofit hospital system. He firmly believes the patient-centered medical home model holds promise to improve healthcare in America by transforming how primary care is organized and delivered.
Phyllis Biedess
Phyllis Biedess is an experienced healthcare executive who is considered an expert on the Arizona Medicaid market. She is a results-driven leader who ensures that her organization remains focused on its mission, maintains a strong bottom line and is a good community partner. Phyllis is a Governance Fellow of the National Association of Corporate Directors. Specialty healthcare focus areas for her include managed care, long-term care, public health and alternative/integrative medicine.
Ms. Biedess was director of long-term care from 1978 to 1983 for the Maricopa County Department of Public Health. She was director of provider management for Arizona Health Care Cost Containment System (AHCCCS) in 1983-84 and director of AHCCCS from 1999 to 2003. In 2005, Phyllis became the CEO of Maricopa County Health Plans, charged with transitioning an AHCCCS long-term care plan and an acute care plan from the County Board of Supervisors to the newly created health district, Maricopa Integrated Health System (MIHS).
She holds a Bachelor of Arts in sociology and psychology from Carroll College in Milwaukee, Wisconsin and a Master of Science in urban planning from the University of Wisconsin-Milwaukee.
Lee Ann Bohn
Lee Ann Bohn assumed her current position as chief operating officer (COO) of the Maricopa County Community College District in December 2023. As COO, she plays a central role on the leadership team, providing an energetic vision for increasing integration, efficiencies and strategic partnerships while helping to steer administrative and operational functions. Lee Ann’s areas of responsibility include business services, human resources, informational technology, police and emergency management. She is also a Board Member of the Valley of the Sun United Way.
Lee Ann began her professional career in the New York State Division of the Budget before moving to Arizona in 2000. She spent her first 13 years with Maricopa County in the Office of Management and Budget, where she held various positions, including deputy director. Lee Ann has also held leadership positions in several different County agencies where she oversaw various areas, including finance, human resources, procurement and information technology.
Growing up in North St. Paul, Minnesota, she completed a Bachelor of Science in psychology and social work at University of Wisconsin-Madison and a Master of Arts in public policy at State University of New York in Albany. Lee Ann and her husband live in Chandler and have two adult daughters.
Carol Kline Olson, MD, DFAPA
Division Chair, Psychiatry
Carol Olson, MD was born and raised in Phoenix, Arizona. She attended Bryn Mawr College in Pennsylvania for her undergraduate education and completed medical school at Stanford University. Dr. Olson completed two psychiatry residency programs- one at University of California San Diego School of Medicine and the second at Maricopa Medical Center (now Valleywise Health) in Phoenix.
Dr. Olson has spent her career practicing psychiatry at Valleywise Health, and since 2004, she has held the position of DMG chair of psychiatry. She is double board certified in general psychiatry and forensic psychiatry. Her clinical interests include treatment of serious mental illness and the intersection between mental health and the criminal justice system.
Dr. Olson lives in Scottsdale with her husband and has an adult son. Her interests outside work include gardening, cooking, public affairs, travel and playing a mean game of Trivial Pursuit.
Tom Manos
Tom Manos spent almost 30 years in public service at the city, county and state levels. He retired in May of 2016 after four years as the county manager for Maricopa County.
Prior to his appointment as county manager, Mr. Manos served as Maricopa County’s chief financial officer for ten years. In 2005, he was assigned the lead role in transitioning the county health system to what would become Maricopa Integrated Health System (MIHS). After the legal transition was completed, Tom was loaned to MIHS for almost a year, serving as the administrative director. He also served as the executive director of the Maricopa County Industrial Development Authority.
In 2009, Tom’s career took a shift when then-Governor Jan Brewer asked him to join her team as deputy chief of staff for budget and finance. He helped develop the plan to eliminate the State’s $3 billion budget shortfall. Mr. Manos also served on Governor Doug Ducey’s transition team and assisted with the governor’s initial Arizona state budget. He has also served on several legislative study committees.
Community service is central to Tom’s life. When he initially retired from his state job, he managed the downtown Human Services campus – a provider of services to approximately 1,300 homeless individuals. Mr. Manos collaborated with non-profit partners to raise $3 million of incremental funds to provide temporary shelter for an additional 500 individuals.
Since retirement, Tom served on the Board of Trustees for the Arizona State Retirement System and volunteers with Brophy College Preparatory. He graduated from Arizona State University earning a Bachelor of Science in finance and was a licensed Certified Public Accountant.
James Marovich
James Marovich is a Phoenix attorney who practices corporate, healthcare and entertainment law. Before entering the field of law, he served for more than 20 years as a hospital administrator, where he managed employee workforces from 150 to 2,000. As a hospital administrator, James coordinated risk management and professional liability programs, negotiated physician and management services contracts, coordinated state and federal regulatory compliance programs, developed improved patient care delivery models, ensured compliance with labor and employment laws, negotiated professional services contracts, assessed risk management issues and participated in government relations and lobbying.
Mr. Marovich is currently serving as general counsel for the Arizona Music and Entertainment Hall of Fame and is a former member of the Executive Council of the Intellectual Property Section of the State Bar of Arizona. He has served on numerous not-for-profit Boards throughout his career and holds the rank of Master Sergeant with the Arizona Rangers, Phoenix Company.
Alan Rawls, PhD
Alan Rawls, PhD is the associate vice provost of clinical partnerships and an associate professor in the school of life sciences at Arizona State University (ASU). He is a pioneer in the field of developmental genetics and skeletal muscle development and repair. Dr. Rawls is also an associate professor in the department of basic medical sciences at University of Arizona College of Medicine in Phoenix in partnership with ASU.
He earned a Doctor of Philosophy (PhD) in cell and molecular biology from Saint Louis University in Missouri in 1993. He then completed two postdoctoral fellowships at MD Anderson Cancer Center in Houston and University of Texas Southwestern Medical Center in Dallas, respectively.
David Wisinger, MD
Chair of Medicine, Valleywise Health
David Wisinger, MD has been with DMG since 1989, working at Maricopa Medical Center as well as Maricopa Integrated Health System’s (MIHS) community health centers, nursing homes and care facilities. He was also the interim chief medical officer for MIHS.
As an internist who sees patients daily and a physician leader in the largest clinical department at DMG, Dr. Wisinger is keenly aware of the numerous issues affecting the organization, such as the complex requirements of providing quality clinical services; teaching medical students, residents and fellows; adhering to billing and compliance regulations; developing new business; and addressing provider and staff concerns. He brings his unique perspective as a medical generalist- whose role is to ensure DMG providers have the tools needed to be the most productive and capable providers of patient care and excellence in teaching- to the DMG Board of Directors.
Dr. Wisinger is the chief of medicine for Valleywise Health and assistant dean of faculty affairs for the Creighton University Arizona Health Education Alliance. Board certified in internal medicine, he earned his medical degree from the University of South Florida Morsani College of Medicine in Tampa and completed his residency at Maricopa Medical Center.
