Key People

George “Mike” W. Brett, MD  

Senior Vice President, Consulting Services/ Chief Medical Officer

Dr. Mike Brett has more than 30 years of experience in geriatric medicine and long-term care. Prior to joining Capstone as a consultant in 2014, he served as the medical director for PACE in Southwestern Pennsylvania. As a private practitioner for more than three decades, Dr. Brett specialized in internal medicine and geriatrics and served as medical director for several long-term care facilities and hospice organizations, in addition to PACE. His work with PACE led to his interest and eventual expertise in Medicare risk adjustment. He is a frequent presenter on topics including polypharmacy in the elderly and risk adjustment.

George W. Brett, MD

John C. Stolze

Senior Vice President, Business Success

John Stolze has more than 25 years of experience leading, directing and developing primary and multi-specialty physician practices and groups; clinics; managed care contracting associations; care management teams; and community-based delivery systems. He has an in-depth understanding of the operations side of PACE, accountable care organizations and physician groups with a strong suit in value-based care.  As director of operations and population health for a physicians’ organization in St. Louis, MO, he established a population health management division and collaborated with the St. Louis Physician Alliance (SLPA), to create and lead a Medicare ACO post-acute care management program and a preferred facility network. John joined Capstone in 2017 and oversees Capstone as well as CareVention HealthCare Consulting Services. 

David Wilner, MD, FACP, AGSF

Senior Medical Consultant

Dr. David Wilner has extensive experience in geriatric and palliative care medicine and medical education. A professor of medicine at the University of Massachusetts Medical School, Dr. Wilner previously served as medical director and vice president of Summit ElderCare, Fallon Health’s PACE program in Central Massachusetts, and as coordinator of geriatric medicine training at St. Vincent’s Hospital in Worcester, Mass. He is a past member of the National PACE Association’s (NPA’s) board of directors and former chair of NPA’s Primary Care Committee. Dr. Wilner is board certified in geriatric medicine, hospice and palliative medicine, and internal medicine and is a fellow of the American College of Physicians and the American Geriatrics Society. 

David Wilner

Angie Hlad, BSN, C.R.N.-C.

Director, Coding and Auditing

Angie Hlad has over 20 years’ experience in the nursing field including acute care, critical care, and long-term care. Angie has an extensive understanding of ICD10 coding and HCC reimbursement, over 12 years of PACE experience, and extensive knowledge in auditing, coding, and quality assurance. Angie has worked closely with multiple PACE programs to develop, organize, and optimize coding, auditing, and revenue processes.. Angie joined Capstone in 2012.

Angie Hlad, CRN-C

Indira Kanouka, MD

Medical Consultant

Dr. Indira Kanouka is a board certified internist who has cared for patients in multiple clinical settings including Federally Qualified Health Centers, Long Term Acute Care hospitals, and PACE. She has also served in medical director and clinician-educator roles in LTAC and PACE. Since joining Capstone in 2018, Dr. Kanouka continues to help providers, who work in CMS risk adjustment models, understand their roles in optimally identifying, diagnosing, and documenting all current conditions, as well as use the PACE model effectively for the benefit of their participants and programs. 

Indira Kanouka, MD

Matt Zimmerman

Director, Strategic Products and Services

Matt Zimmerman plays a key role in providing services to support clients through meaningful analyses of their data. He has over 20 years of experience in Medicare Part D management and PACE, previously managing all risk adjustment processes for one of the largest PACE organizations in the country. Matthew has managed and developed internal process standards, policies and procedures, regulatory requirements, and adaptations to CMS changes.

Matt Zimmerman
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