Medical Reviewers

Mary Beth Spinos

Mary Beth Spinos aka DOOGIE has been a medical volunteer with FD since 2014. She is a Nurse Practitioner specialist in high risk pregnancy from multiple births to those with complications of cardiac disease, diabetes and cancer. When not working she and her husband can be found on the ski slopes, the river, road biking or traveling. Her love of the outdoors and travel adventures began at a young age and continue to flourish.

Jodi Loud

Jodi is a registered nurse who spent the last 25 years in a consulting role. She works nationally with clients and their families, helping them understand and adapt to life-changing injuries, and coordinating specialty medical care. She works with them through rehab, recovery, and transition. She also started The Wicked Wisdom Podcast, designed to simplify the science of our biology and suggest small actions that can lead to positive physical and mental changes. She came to First Descents through her daughter, who is an alumna of the MS program. Jodi loves to travel with her adult children and her friends, hiking and exploring the jungles, lakes, and ruins of the world.

Natasha Steele

Natasha Steele is an outdoor and nature enthusiast, a writer, an internal medicine physician at Stanford University, and a survivor of Hodgkin’s lymphoma. She’s passionate about the experience of cancer survivorship, and particularly focused on ways to build more just and equitable medical systems that empower cancer survivors from all backgrounds. Prior to medical school she was a competitive horseback rider and spent years teaching kids and adults how to ride. In her free time she can be found biking around the hills of the Bay Area with her daughter and husband, exploring the beach with her family, or on a run with her rescue dog, Fig.

Holly Adnan

Holly Adnan is a Registered Nurse who lives in the Rocky Mountains of Colorado, just outside of Vail. Holly received her Bachelors Degree of Science in Nursing from the University of Arizona and has been a nurse since 1995. Her background includes working with cardiac medical and surgical patients, renal transplants, obstetrics and emergency room, trauma nursing and injury prevention. Holly currently works at St Anthony Summit Medical Center as a nurse and Injury Prevention Specialist in the Trauma department. She also serves as the Director for ThinkFirst, Summit Medical Center and Mountain Clinics, a non-profit, injury prevention program that focuses on the education of youth regarding the prevention of brain and spinal cord injuries. The program provides education and gives away free bike and ski helmets to those in need. Holly has been a volunteer with First Descents since 2004 and she and her husband have volunteered at multiple camps. She enjoys traveling the world, snowboarding, mountain biking, stand up paddleboarding and spending time with her husband and their two  children.

Cathleen Robinson


Cathy grew up hiking, climbing, backpacking, running and riding horses in Southern California. She moved to Colorado in 1981 to pursue a degree in Outdoor Recreation at Colorado State University. She went back to school in 1998 to become a physician assistant. Cathy has been a PA for 23 years, spending 17 years at an internal medicine office before transitioning to hormone therapy. She loves to travel, ski, snowshoe, cycle , hike, backpack, climb and scuba dive. She wanted to combine her work with her love for the outdoors, so became involved in the Wilderness Medical Society and has participated in a study on high altitude pulmonary and cerebral edema and acetazolamide in Nepal. She began volunteering for First Descents in 2009 as a camp medic at a Jackson Hole rock climbing camp. She fell in love with the FD mission and has volunteered ever since.

Charles Nicoli

Larry Smith

Dr. Larry Smith is an emergency physician who practices in Washington state and has volunteered for First Descents since 2006. He lives with his wife in the North Cascades town of Mazama. Originally from the Midwest, they bounced around the globe with the military for a few years before finally finding a suitable place to indulge their interests in mountain sports. Dr. Smith has been serving as the Medical Director for First Descents since 2009. Email:[email protected]

Marc Slatkoff

Marc Slatkoff developed his love of rivers while in medical school in the early 1970’s, first as a canoeist and then a whitewater kayaker. Over the subsequent fifty plus years kayaking and other outdoor activities have taken him to some of the most beautiful places on earth. 

As an oncologist he developed an early interest in quality of life issues and participated in and helped develop support programs for patients and their loved ones, starting in the 1980’s. Upon learning about the impending launch of First Descents he attended the inaugural camp in 2001 and subsequently was asked to join the board. Serving as medical director of FD from 2001 till May of 2009 and participating in many camps, usually with his wife Carel, were joyful and meaningful experiences that he considers many of the best in life. He has long held that FD is as successful a patient support program as any he’s had the pleasure to serve. He strongly believes in the value of adventure therapy and is happy to continue to support the FD family. 

Justin Granstein


Justin Granstein aka “Cascade” is a physician who specializes in neurocritical care. Originally from Boston, he is an avid skier and hiker whose love of the mountains has taken him from Alaska to the Swiss Alps. After participating in the First Descents Healthcare Heroes program in 2020, he signed up as a medical reviewer to help more people experience the restorative potential of the outdoors.

Jane Lose


Jane Lose “Willow” is a Nurse Practitioner and Midwife, working in Community Health for about 20 years. She is a primary care provider who specializes in reproductive health, HIV, and transgender care. She started volunteering with First Descents a few years ago, and loves supporting the work of this amazing organization. She feels lucky to call Colorado home, and loves to be outdoors hiking, rafting and biking with her husband, two teenagers and dog.

Jessica Towns

Jessica Towns grew up climbing, kayaking, snowboarding, mountain biking, and hiking in Duluth, Minnesota. While working in molecular and cytogenetics in oncology at Mayo Clinic and Emory University, she started volunteering in pediatric oncology. She then went to PA school specifically to work in oncology and joined the Mayo Clinic Lymphoma team, where she recognized the unique concerns of young adults and started a Survivorship Program. In 2012, one of her patients returned from a life-changing FD trip and she made Shaman promise to volunteer with FD and to help other patients find FD. Shaman then fell in love with FD! She continues to work in oncology as needed in California and owns a medical practice in Florida. She is passionate about the healing power of nature, enjoys cooking plant-based meals, everything outdoors, photography, traveling, helping people feel good about themselves, and spending time with her family.

Christina Harlow


Christina Harlow, AKA “Lumps”, became a First Descents lifer in 2016 as a participant on a climbing trip and was soon back as a medical volunteer. She works as a nurse practitioner in a rural Vermont Emergency Department to pay the bills and maintain skills but her true love is playing in the woods on a bike, skis, or any other method that gets her there. She dreams of big rocks, cold water, and bonfires.  She happily spends most days playing in the dirt, caring for her several animals on her mini-farm, and making a lot of homemade stuff with her two daughters and rockin’ husband.

Megan Weigel

Megan Weigel, DNP, is a nurse practitioner specializing in neurological care in Jacksonville Beach, FL, where she brings a unique integrative medicine and holistic nursing perspective to her work at Baptist Neurology.  She has been a Multiple Sclerosis certified nurse since 2005, and an NP for over 20 years.  She is also a board-certified Advanced Practice Holistic Nurse.  She earned her doctorate of nursing practice degree from the University of Florida, where her research emphasis was on preventive healthcare.  She was recognized as one of Jacksonville Business Journal’s “40 Under 40” and as an Outstanding Young Alumnus of the University of Florida in 2010, and as one of the “Great 100 Nurses of Northeast Florida” in 2015.  She completed a fellowship in Integrative Medicine at the University of Arizona in the Fall of 2018 which complements her practice focus on wellness and holistic care.  She is the past-president of the International Organization of MS Nurses, serves on the editorial board of the International Journal of MS Care, and enjoyed years of service on the Healthcare Advisory Committee for her local National MS Society chapter.   She is the co-founder of oMS Yoga, a non-profit organization that brings free yoga classes to people living with MS along the east coast.  She is a yogi, surfer, runner, avid reader, writer, and enjoys her work in the MS field immensely, especially educating people living with neurological issues and peers about the importance of wellness as an integral part of treatment.

Kristin McMaster


Kristin McMaster (aka “Tortuga”) joins FD from California as our Mental Health Reviewer and Resource Specialist.  Kristin volunteered for FD back in 2011 while working as a Young Adult Oncology Social Worker and it was an experience that left a permanent mark on her heart.  She has an unwavering belief in the strength of the wilderness to heal and help empower people facing challenges like a cancer diagnosis.  Kristin received her Masters of Social Work from the University of Southern California with a concentration in Health and following the completion of her MSW program, she was recruited to build an AYAO psychosocial support program at UC Irvine’s Cancer Center. Along with supporting FD, Kristin helps to run surf camps for kids who have a family member with cancer and loves nothing more than to share the joy of being out on the water. When she is not wearing her counselor’s hat you can find Kristin out in the ocean on her surfboard, riding her mountain bike or roaming the beautiful trails of California!

Allison Baus


Allison “Bones” Baus is a clinical nurse educator who specializes in oncology, specifically focusing on blood & marrow transplant and cellular therapies. In her free time, she enjoys running, biking, and hiking in the beautiful Wisconsin outdoors. She has been involved with First Descents as a medical volunteer since 2016 and has loved every minute of it!

Chris Greenlee

Heather Carlson


Heather Carlson Justice has worked as a physician assistant in oncology since graduating from PA school and loves working with cancer patients. She worked at MD Anderson Cancer for 7 years before missing the Midwest and transitioning to the University of Michigan Cancer Center. While in Ann Arbor, she met her husband who relocated them both to East Tennessee. Heather currently works with Wellmont Health Systems and has recently taken a position as founding faculty of Milligan College’s PA school. Heather likes to keep busy and set large goals. She is a 6 time Ironman finisher with a few top 5 age group finishes. She loves to travel the world and see people take on and complete big goals.

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