Meet Our Team of Experts in Health and Business

Mahmood is the Founder and CEO at Vitaliti with over 30 years of experience in Silicon Valley entrepreneurship. He co-founded iManage, where he led the company through its growth, IPO, and exit. Mahmood also served as Chairman at Infinisim and was an Entrepreneur in Residence at Artiman Ventures, engaging with various biotech companies. He is also a lead mentor for startups at Stanford's StartX.

Mahmood holds a degree in Electrical Engineering and Computer Sciences from the University of Illinois Chicago. In his free time, Mahmood enjoys exploring new tech and engaging in conversations with like-minded people.

Ruma Samdani heads the Office of the CEO at Vitaliti, where she brings over 20 years of experience in business innovation. She specializes in helping scaleups future-proof their growth using cloud-native architecture and integrated AI. Previously, Ruma was Senior Director at the Customer Innovation Office at SAP, driving a $700 million pipeline and launching SAP’s Sustainability product portfolio. She is also a partner at Mentors Fund and an advisor to startups and scaleups.

Ruma holds a degree from Harvard Business School in Policy Administration. In her free time, she enjoys engaging with the startup community and spending time with her family.

Dr. Yumi Ando is the Head of the Medical Team at Vitaliti, with twenty years of experience as a concierge physician and as the sole proprietor of a concierge medical practice. She has been recognized with multiple awards for her contributions to patient care and health policy, including from the Department of State.

Dr. Ando holds a Master’s in Public Health and a Medical degree from Stanford University School of Medicine, where she completed her residency in Internal Medicine. She is Board-Certified in both Internal Medicine and Integrative Medicine. In her free time, she enjoys running, knitting, reading historical fiction, and spending time with her family.

Dr. Rick Cohen is the Director of Medical Innovation at Vitaliti, bringing a strong background in medical research and healthcare innovation. Before joining Vitaliti, Rick was a Medical Researcher at Ignite Longevity and the Founder of PureClean Performance, and he also served as President of Core 4 Nutrition.

Rick earned his Doctor of Medicine degree from Hahnemann University Medical School and completed his undergraduate studies in Biomedical/Medical Engineering at Duke University. Rick is passionate about health and longevity, whether it involves preparing organic family meals, hiking at high altitudes, or using biometrics to optimize his personal vitality protocol.

Dr. Sana Jivraj is the Director of Integrative Medicine at Vitaliti, where she brings extensive clinical experience to the team. She is a Board-Certified Family Medicine physician with subspecialty fellowship training in Integrative Medicine from the Academy of Integrative Health and Medicine and has expertise in aging and longevity research.She completed her clinical residency at the Robert Wood Johnson Family Medicine Residency Program in New Jersey.

Dr. Jivraj earned her Doctor of Medicine degree from St. George's University School of Medicine and completed her undergraduate education at the University of Toronto in Canada. In addition to her role at Vitaliti, she continues to provide care in her clinical practice.

Ganga Nadella is a Physician Leader at Vitaliti with over 15 years of experience in clinical care, team management, and leadership training. She has held leadership roles focused on developing service lines, enhancing physician recruitment, and integrating AI and machine learning into Value-Based Care models. Ganga advises early-stage startups on business development, strategy, and customer experience.

Ganga holds an Executive MBA from Stanford University, an MD from UC San Diego, and a BA from UC Berkeley. In her free time, Ganga enjoys mentoring, public speaking, and exploring healthcare technology.

Tim Calhoun is the VP of Engineering at Vitaliti, with extensive experience in software development and engineering management. Before joining Vitaliti, Tim was VP of Server Side Engineering at SoundHound and held key roles at Yahoo!, Hewlett-Packard, and Lockard & White. His career has focused on leading high-performance engineering teams and delivering innovative technical solutions, from low-level software development to scalable system design.

Tim holds a Master’s degree in Software Engineering from UT Austin and a Bachelor’s degree in Electrical Engineering from the University of Michigan. In his free time, Tim enjoys spending time with his family, running, cooking, and building over-engineered chicken coops.

Michelle Villegrand is the Director of Customer Success at Vitaliti, bringing extensive experience in customer service and team leadership. Before joining Vitaliti, she held key roles at Iron Ox as Customer Experience and Support Manager, IXL Learning as Customer Support Manager, and Education.com as Customer Success Manager, where she excelled in strategic planning and customer service.

Michelle holds a Bachelor’s Degree in Business, Management, Marketing, and Support Services from the Queensland University of Technology.

Aqil Rashid is the Head of Operations at Vitaliti, with extensive experience in healthcare and business operations across the US and the Middle East. Before joining Vitaliti, Aqil was a Consultant at Bain & Company, where he analyzed markets for a major healthcare merger and developed strategies for ambulatory surgery centers and community health centers. He is skilled in strategic planning, project management, and team leadership.

Aqil holds a Bachelor's degree in Quantitative Econometrics from Brown University. In his free time, he enjoys curating music from around the world, traveling like a local, and spending time with friends and family.

Alex Hawayek is the Chief of Staff at Vitaliti, where she focuses on acquiring top talent, executing strategic plans, and building crucial industry relationships. Prior to joining Vitaliti, Alex was Director of Client Services at Groupe Insearch, partnering with CEOs, VCs, and Family Offices, and Business Development Manager at Advantis Global, excelling in client acquisition and revenue growth.

Alex holds a Bachelor’s Degree in Communications from Santa Clara University. Outside of work, Alex enjoys staying active through group workout classes, sharing her expertise as a Barre, Yoga, and Group Fitness Instructor, and exploring health and fitness.

Dr. Evaleen Jones is the Director of Medical Operations at Vitaliti, bringing extensive expertise in clinical medicine to her role. She has been a Clinical Professor and Practicing Physician at Stanford University since 1995 and is triple board certified in Family Medicine, Hospice and Palliative Medicine, and Addiction Medicine. In 1988, Dr. Jones founded Child Family Health International, a non-profit that provides ethical global health opportunities to students and institutions.

Evaleen holds a Doctor of Medicine degree from Stanford University and completed her residency at UCSF Medical Center.