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Rani Aravamudhan

Rani Aravamudhan leads HDMS Clinical Advisory services. She is a general medicine physician who cares for individuals yet connects experiences to population health perspectives using her deep data expertise. Rani perfectly embodies the unique trilogy needed to do more with health data to drive impactful industry change from the ground up. Her work and team guides clients to understand what is possible with data, find answers and insights within projects and analyses, and gather context and scale across the HDMS client base.

Rani is known for her work in clinical transformation, workflow design and development, value-based care, risk management and clinical quality and performance reporting. Her strong background in clinical medicine and experience in the HIT industry make her successful in navigating payer, provider and technology vendor landscapes.
Prior to HDMS, Rani led cross functional teams at Philips Wellcentive as a Services Leader. With a data backbone, she integrated efforts across clinical specialists, program managers, training staff and headed their Data Governance committee. She has also led EMR/EHR implementations, workflow and process optimization consulting at McKesson Corporation, serving as their resident subject matter expert for all CMS quality reporting programs.

Rani earned her medical degree at Grant Medical College in Mumbai University, India.


Marilou Calasanz

Marilou Calasanz serves as the Vice President of Client Experience, working with consultants/advisors and health plans. Marilou has 25 years of health data management experience and has been with HDMS since 2012. Her strategy for delivering customer excellence centers on strategic alignment with our clients’ business objectives and ensuring an innovative, responsive, and seamless end-to-end client experience. She consults with clients to develop strategic plans and holistic solutions to drive mutual growth.

Prior to joining HDMS, Marilou was a Senior Director of Data Security and Governance at Optum where she collaborated with Compliance to define their data use policy framework. Previously, she was a Managing Consultant at Optum in the employer market. She was co-principal investigator on Robert Wood Johnson Foundation five-year research project integrating disability management in the primary care setting and evaluating its impact on health outcomes, socioeconomics, and productivity.
Marilou received her Bachelor of Arts degrees, Economics and Finance, from the University of St. Thomas in St. Paul, MN.


Jason Elliott

Jason Elliott serves as the Vice President, Client Experience, working with employer and government clients and their partners. Jason’s career began in clinical pharmacy, managing injectable drug policy and use management, but quickly shifted focus to employer analytics, helping plan sponsors integrate and expand a data-driven decision-making culture in their organizations, by supporting clients in pairing insightful analytics with real world business and population health problems. In his seven years at HDMS, Jason has helped clients improve clinical and financial outcomes in their populations through the use of advanced methodologies and creative problem-solving, serving his clients by leveraging his training and education at the University of Massachusetts as an epidemiologist.

Before joining HDMS, Jason worked at BlueCross BlueShield of Western New York and BlueShield of Northeastern New York for over a decade, where he led the employer, clinical, and provider reporting teams. Jason’s work in assessing the impact of the Affordable Care Act on preventive care outcomes helped plan sponsors understand and plan for the evolution caused by that historic legislation. Throughout his career, and at HDMS, Jason has worked to expand LBGTQ health analytics and care access, to ensure that the needs of this community are represented and data regarding their unique health concerns are understood.