About Us

Ravi Singh: Native of the Himalayas, born and raised in Simla in the Indian state of Himachal Pradesh.

He has participated in and led bicycling, motorcycle and trekking expeditions throughout the Himalayas. He moved to the U.S. in the mid-1980s to pursue higher education and business interests. In 1992, he founded Himalayan Spirit Expeditions, combining his entrepreneurial spirit with his love for the Himalayas. It was on these expeditions to remote regions where he came to know of the healthcare deficiencies of the rural populations and, in 1996, founded the Himalayan Health Exchange.

He has brought together a group of hardworking and dedicated staff who provide a unique international health experience and adventure for participants.

Dr. Nuki is the Chief Medical Officer for BlueWater Health. BlueWater is a physician owned democratic group in New England that staffs ten emergency departments, a hospitalist program, and a walk-in clinic. He graduated from the University of Connecticut School of Medicine and his MBA is from Brandeis Heller School. Since graduating from residency, he has had broad clinical experience including Emergency Medicine, EMS, international wilderness medicine, primary care, obstetrics, and inpatient care. 

As CMO, Dr. Nuki is responsible for providing leadership for the provision of high-quality and cost-effective patient care across the organization through fiscally responsible operational management and strategic development including leadership development and oversees quality and risk management. Dr. Nuki has led teams of medical students, residents, and physicians through the remote Himalayan regions of India.  He has lectured for the Global Health Education Consortium and has volunteered for Health Volunteers Oversees in Bhutan. He has served as the Chair of the Workforce Section for the American College of Emergency Physicians and works as an Emergency Physician across New England. Throughout his career he has also designed and implemented educational programs for Physicians, Residents, Medical Students and Advanced Practice Providers both as residency faculty and in community hospitals.

Dr. Sujata Tipnis is a general pediatrician with the University of Miami/Holtz Children’s Hospital in Miami, Florida . She completed her Pediatric residency training at Baylor College of Medicine/Texas Children’s Hospital and since has enjoyed always serving a diverse group of children and families. She has practiced in Houston, Texas and northern California before relocating with her family to Miami. Her favorite aspects of participating in expeditions to Ladakh and the Spiti Valley include providing care to the children and families in those regions, learning from the local providers and enjoying the beauty and peacefulness of the mountains. In her spare time Dr. Tipnis likes to spend time with her son, daughter and husband. She enjoys being outside, especially by the water when home and mountains when traveling; talking longs walks, playing tennis, reading and baking.

Dr. Kari Sears is a family and sports medicine physician in South Bend, IN. She completed her medical degree at Wake Forest University School of Medicine, and family medicine residency at Memorial Family Medicine Residency in South Bend, IN. Dr. Sears continued her training in Sports Medicine at the South Bend – Notre Dame Sports Medicine fellowship. She has special interests in sports medicine and international medicine. When not working, Dr. Sears enjoys running, cycling, traveling, camping, and she always has at least one home improvement project in the works!

Professor Paul Donnelly teaches Religious Studies at Northern Arizona University. He has a PhD in Buddhist Studies from the University of Wisconsin-Madison, where he was a student of Geshe Lhundup Sopa. Professor Donnelly also teaches courses on Buddhism, Tibetan Buddhism, Tantric forms of Indian religions, Women in Asian Religions and Religion and Film. Professor Donnelly has travelled to the Indian Himalayas extensively and has been leading anthropology trips for HHE since 2004.