Meet Our Residents

Elizabeth Bartman, ND

Dr. Elizabeth Bartman is a licensed naturopathic physician completing her second-year residency at NCNM. She received her doctorate of naturopathic medicine from NCNM in 2013. Dr. Bartman is a member of the American Association of Naturopathic Physicians and Oregon Association of Naturopathic Physicians and has training in naturopathic primary care and family medicine. Her interests include gastrointestinal health, endocrine imbalances, autoimmune disease management, mental health and geriatric medicine and healthy aging.

During her clinical training, Dr. Bartman completed a six-month rotation in naturopathic cardiology and pulmonary medicine under the guidance of Dr. Martin Milner and Dr. Jeremy Mikolai. She also spent extensive time working as a medical student in various community clinics, providing care to patients of various socio-economic status and backgrounds. While completing her studies in naturopathic medicine, Dr. Bartman sought several outside courses and seminars that enhanced her knowledge of botanical medicine and nature cure modalities.

Prior to becoming a naturopathic physician, Dr. Bartman earned a Bachelor of Science degree in cellular and molecular biology from Pacific University in Forest Grove, OR. Her work in research and in the nursing field brought her extensive experience working with geriatric and mentally ill populations, as well as exposure working with drug and alcohol rehabilitation. Nursing home and hospital work prompted her desire to promote preventative medicine within her community. Her desire is to guide patients to their optimal state of health through healthy diet and lifestyle choices, as well as using individualized, evidenced-based medicine to treat root causes of a patient's disease or illness.

In her spare time, Dr. Bartman enjoys exploring new recipes and cultivating her culinary skills, music performance, and enjoying the rich outdoor diversity the Pacific Northwest has to offer.

Nathaniel Bingham, ND

Dr. Nathaniel Bingham is currently completing his first year of residency as the heart and lung resident at NCNM and the Center for Natural Medicine with Dr. Martin Milner and Dr. Jeremy Mikolai. He received his bachelor's degree in business administration and economics from the University of Oregon in Eugene, OR and graduated form NCNM in June of 2013. His clinical interests include cardiology, dermatology and minor surgery.

Dr. Bingham has the unique experience of having a cardiovascular and pulmonary naturopathic residency. This opportunity allows him to focus on ECG and stress ECG interpretations in addition to prescribing therapeutic exercise and nutrition specific recommendations. An interest in cardiovascular and pulmonary conditions stems from his prior experience working in public health and see first-hand how diet, exercise and lifestyle modifications contribute to a person's health.

Outside of residency, Dr. Bingham is married and has one daughter. He enjoys spending time with his family, studying and improving his Spanish, climbing and snowboarding.

Lai Chim Chan, ND

Dr. Lai Chim Chan is a licensed naturopathic physician completing her first year of residency at NCNM. She graduated from NCNM in June 2014 with her Doctorate of Naturopathic Medicine. Prior to her studies at NCNM, Dr. Chan completed her bachelor’s degree in chemistry from Willamette University.

During her clinical training at NCNM, Dr. Chan completed numerous clinical rotations in naturopathic primary care. As a medical intern she also completed specialty naturopathic rotations in cardiopulmonary medicine, women’s health, physical medicine, homeopathy, minor surgery, IV therapy, and environmental medicine.

Dr. Chan is passionate about providing patient-centered health care and she believes being a naturopathic physician trained in both conventional and natural therapies allows her to provide individualized health care to fit each individual patient’s needs. She is committed to empowering and guiding her patients toward better health through education and helping them make their own informed decisions in their health care.

Dr. Chan enjoys offering a variety of treatment options to her patients but two of her favorite naturopathic modalities are physical medicine and homeopathy. She truly believes in the naturopathic principle of treating the whole person and using homeopathic remedies allows her to treat each person on the mental, emotional, and physical realms. As a medical student, she completed advanced coursework in constitutional homeopathy through the New England School of Homeopathy taught by renowned homeopaths Dr. Paul Herscu and Dr. Amy Rothenberg.

Dr. Chan has a broad primary care focus but her professional interests include cardiopulmonary medicine and diabetes management. She is passionate about providing naturopathic primary care to the medically underserved; and one of her goals as a physician is to make naturopathic medicine accessible to all. Dr. Chan is a current member of the American Association of Naturopathic Physicians and Oregon Association of Naturopathic Physicians.

When not working, Dr. Chan enjoys spending time with her family and friends, writing poetry, listening to music, and traveling.

Cesilie Cocks, ND

Dr. Cesilie Cocks is currently a resident physician at NCNM Clinic, the primary teaching clinic of the National College of Natural Medicine, where she enjoys working with a diverse patient populations providing both primary and adjunctive care. Dr. Cocks specializes in the use of nutritional, botanical, and physical medicine in treating a variety of medical conditions. Dr. Cocks graduated from the National College of Natural Medicine with high honors and has an undergraduate degree in Environmental Science from The University of Cincinnati. She also worked for 17 years as fitness instructor.

Dr. Cocks was born and raised in Norway, but moved to the United States in 1987. Dr. Cocks is married and has three sons, 22 year old twins, and a 15 year old. Outside of work she enjoys spending time with family and friends, hiking, and running.   

Stephanie Culver, ND

Dr. Stephanie Culver is a licensed naturopathic physician completing her first year of residency at NCNM. She graduated from NCNM in 2014 with a doctorate in naturopathic medicine and a certificate in natural childbirth. Dr. Culver is an Oregon native and is deeply rooted in the community and dedicated to its service. 

Her path to naturopathic medicine was led by her own decade-long struggle with chronic pain. Her professional interest lies strongly in the mind-body approach to pain management, not simply symptom abatement. Other professional interests include dermatology and minor surgery, IV therapy and chelation, pediatrics, mental health, and acute care. Her preferred treatment modalities are botanical medicine, nutrition, and IV therapy. Dr. Culver's clinical training included internships in IV therapy, cardiovascular and pulmonary medicine, dermatology and minor surgery, and naturopathic midwifery. 

Having witnessed and experienced the success of naturopathic medicine herself, she has become an advocate for its use, traveling the globe to understand its use and effectiveness across all cultures. She has travelled to India to study traditional rural naturopathic medicine, Mexico as part of a monthly naturopathic medical team, and to Haiti to work with MamaBaby Haiti and Naturopaths Without Borders (NWB). As a student she sat on the global NWB board and was part of the team to establish NWB as a 501c3 non-profit organization.

She seeks to fill a growing need for individualized primary care and to provide quality, patient-centered medicine. By using an integrative medical model and the naturopathic principles as her guide, she seeks to promote personal wellness and the restoration of health from the moment of birth and throughout life. When not working she enjoys spending time with her husband, gardening, hiking, traveling, and playing with her two cats.

Andrea Del-Olmo, ND

Dr. Andrea Del-Olmo is a licensed naturopathic physician entering her first year of residency at NCNM. She graduated from NCNM in 2013 with a doctorate in Naturopathic Medicine and a certificate in Natural Childbirth. While in school, Dr. Del-Olmo worked for four years as a teaching assistant in gross anatomy and assisted in over 75 live births in the greater Portland area. Her areas of concentration include women's health, homeopathy and minor surgery.

Dr. Del-Olmo received her baccalaureate from the University of California, Santa Cruz, graduating cum laude with a degree in community studies, emphasizing sustainable agriculture and permaculture. Prior to attending school at NCNM she studied botanical medicine at the Columbines School of Botanical Studies in Eugene, Oregon and ayurvedic medicine at the Dhyana Center in Sebastopol, California. She has also spent many years traveling and living abroad in countries across Asia, Africa, Europe, Central America and the Caribbean.

Dr. Del-Olmo has an integrative approach to health care, which addresses mental, emotional and physical needs while utilizing the best of both conventional and alternative medicine to provide safe and effective treatment. When not working she enjoys sailing, surfing, hiking, kayaking, wild-crafting, cooking and gardening.

Corina Dunlap, ND

Dr. Corina Dunlap graduated with a doctorate in naturopathic medicine and master of science in integrative medicine research from the National College of Natural Medicine (NCNM). She is a first-year resident at A Woman’s Time and the NCNM Teaching Clinic, as well as, a post-doctoral fellow at Helfgott Research Institute. Before NCNM, she received her B.A. from Smith College with an emphasis in medical anthropology and international relations.

Prior to her graduate training, Dr. Dunlap spent several years as an Outward Bound educator and Wilderness First Responder. She traveled and worked abroad, including time spent with the WHO and UNICEF in northern India. Through her experiences and observations of various medical traditions, she was drawn to practice a model of healthcare that focuses on the root cause of health concerns, education, and prevention.

In addition to all aspects of primary care, special interests include women’s health, neuroendocrinology, reproductive endocrinology, overall hormone imbalances, environmental medicine, skin conditions, metabolic disorders, obesity, and chronic disease. Research topics include infertility, interstitial cystitis, vulvar vestibulitis, bacterial vaginosis, biotherapeutic drainage, diagnostic techniques in Ayurveda, cervical dysplasia, and natural medicine treatment options for HPV.

Dr. Megan GolaniMegan Golani, ND

Dr. Megan Golani is a licensed naturopathic physician and midwife in her third year of residency at the National College of Natural Medicine focusing on family and community medicine. She graduated from NCNM in 2012 with honors and a certificate in natural childbirth.

During her studies, Dr. Golani completed a two-year clinical mentorship rotation in women’s health under the direction of Dr. Kimberly Windstar and a six–month internship focusing on chronic disease management and biotherapeutic drainage with Dr. Dickson Thom. Additionally, she completed a two-year apprenticeship in women’s health, midwifery, and pediatrics with Dr. Catherine Schaefer in her private practice. She also has trained with Tami Kent in holistic pelvic care.

Dr. Golani received her baccalaureate degree from the University of Michigan-Ann Arbor where she focused on developmental and transpersonal psychology, with an emphasis the mind-body connection.

Dr. Golani believes strongly in the holistic approach to medicine; integrating nutritional and lifestyle counseling, IV therapy, herbal medicine, and homeopathy to provide individualized patient centered care. She is passionate about supporting families through fertility counseling, prenatal and postpartum care, and pediatrics.

When not working, Dr. Golani is a Providence Hospice volunteer and enjoys camping, meditating, practicing yoga, and traveling abroad with her husband.

Ruth Hobson, ND

Dr. Ruth Hobson is a licensed naturopathic physician entering her first year of residency at NCNM. She graduated from NCNM in 2014 with a doctorate in naturopathic medicine and a certificate in natural childbirth. Before NCNM, she received her BA from Brevard College with an emphasis in health science studies.

During her clinical training at NCNM, Dr. Hobson completed multiple clinical rotations in naturopathic primary care, women’s health, and IV therapy. Additionally, she completed an 18 month apprenticeship with a focus in women’s health, midwifery, and pediatrics. She also trained with Tami Kent in holistic pelvic care™. In 2011 and 2013 Dr. Hobson was granted the opportunity to share her passion for naturopathic medicine with the people of Nepal. While there she helped to organize and facilitate two medical camps educating women in their own health care as well as providing naturopathic treatments.

Dr. Hobson believes strongly in the power of naturopathic medicine and seeks to offer individualized care through lifestyle counseling, nutrition, and botanical medicine. When not working she enjoys hiking, kayaking, cooking, traveling, figuring out her violin, and cuddling with her dog Duke.

Katherine Lewis, ND

Dr. Katherine Lewis is a licensed Naturopathic Physician completing her first year residency at NCNM. She graduated with a doctorate in naturopathic medicine in 2014 from National College of Natural Medicine. During her time at NCNM she completed a one-year rotation at Center for Natural Medicine focused on cardiology, pulmonology, and chronic disease management. Her other clinic interests include primary care, physical medicine, IV therapy, minor surgery, homeopathy and diabetes management.

Prior to her naturopathic medical training she received her bachelor of science from Oregon State University in dietetics. Understanding the role nutrition can play in disease processes fueled her desire to learn even more about the root of disease and how to keep people healthy.

Through her experiences at NCNM Dr. Lewis learned the importance of setting a foundation for health, by addressing lifestyle, diet, exercise and emotional imbalances. She enjoys utilizing many forms of naturopathic medicine from deep breathing to IV therapy and has witnessed the resulting profound healing.

When Dr. Lewis isn’t busy being a doctor she continues her education via seminars and research. Her hobbies outside of medicine include knitting, hiking, climbing, bicycling and snowboarding.

Laura Lewman, ND

Dr. Laura Lewman is a licensed naturopathic physician completing her first year of residency at NCNM. She received her doctorate in naturopathic medicine from NCNM in 2014, graduating with high honors. Her clinical training at NCNM included a six-month internship in cardiopulmonary medicine, as well as extensive training with IV therapy and botanical medicine.

Prior to her time at NCNM, Dr. Lewman earned a Bachelor of Science degree in mathematics from the University of Alberta, graduating with distinction. She first become acquainted with natural medicine through her own healing journey, and quickly become passionate about pursuing a career in naturopathic medicine.

Dr. Lewman uses an integrative approach to formulating treatment plans, and chooses the best from the huge array of both naturopathic and conventional medical modalities to ensure optimum results. Educating patients is a pillar of her practice, and Dr. Lewman loves teaching patients about their bodies and empowering them to take charge of their health. She embraces the challenge of motivating and coaching her patients as they implement effective and lasting lifestyle changes to both treat and prevent disease. Although she has a general medicine practice, Dr. Lewman has a particular interest in treating athletes as well as managing diabetes, metabolic syndrome, and obesity.

When not busy doctoring, Dr. Lewman likes reading, spending time with her husband, and exploring Portland's food scene. She is a self-confessed gym rat, and loves weight-lifting, running, kettle bells, and any other physical challenge.

Megan McCormick, ND

Dr. Megan McCormick is a licensed naturopathic physician completing her first year of residency at NCNM. She earned her doctorate in naturopathic medicine from NCNM in 2014. 

Prior to attending NCNM, Dr. McCormick attended the Southwest College of Naturopathic Medicine in Tempe, Arizona. She received her bachelor’s degree in 2005 from Arizona State University with a degree in business and a focus in health and nutrition. 

Dr. McCormick’s interests are in women’s health, transgender care, and endocrinology. Additionally, she is interested in dermatology, minor surgery, and aesthetic medicine. 


Miguel Mitchell, ND

Dr. Miguel Mitchell is a licensed naturopathic physician entering the first year of his residency at NCNM. He earned a doctorate degree in naturopathic medicine in 2014 from NCNM where he specialized in primary care case management, minor surgical procedures, and did a six-month rotation in cardiology and pulmonology. He also participated in the 2012 natural medicine brigade to Guatemala where he offered primary care services to an underserved patient population. 

Dr. Mitchell received his bachelor’s degree in psychology in 2005 from the University of Washington. After graduation he did extensive volunteer work in crisis intervention and hospice related bereavement counseling. In addition to providing exemplary care to his patients, Dr. Mitchell is committed to furthering the naturopathic profession both through personal improvement and the guidance of students. He believes strongly in the power of the naturopathic philosophy and is eager to share that enthusiasm with others. 

Outside of the clinic, Dr. Mitchell enjoys camping, rock climbing, and home renovation. 

Dr. Jessica NagelkirkJessica Nagelkirk, ND

Dr. Jessica Nagelkirk is an Oregon board certified naturopathic physician and 2012 alumnus of the National College of Natural Medicine (NCNM) currently in her third year of family practice residency training. She received her baccalaureate degree in General Science from the University of Oregon where she focused on biochemistry and psychology which has influenced her comprehensive practice style.

Using integrative therapies shaped by evidence based medicine, Dr. Nagelkirk works collaboratively with her patients to create effective, individualized treatment plans that offer the best of both natural and conventional medicine. She welcomes patients of all ages and any medical concern with a special interest in mental health/psychological conditions, endocrine disorders, women’s health and cardiopulmonary medicine.

Paresh Hrushikesh Shelat, ND

Dr. Paresh Hrushikesh Shelat is a licensed naturopathic physician completing his first year residency at the National College of Natural Medicine (NCNM). He earned his Doctorate of Naturopathic Medicine and Masters of Acupuncture degrees in 2014 from NCNM.  He received his Bachelors of Science degree in Wellness and Alternative Medicine from Johnson State College in Vermont. 

During his clinical training, Dr. Shelat completed a one-year rotation in cardiopulmonary medicine, a six-month rotation in gastroenterology, and spent a considerable amount of time mastering physical medicine modalities. He complemented these core specialties while simultaneously studying classical Chinese medicine. His clinical interests include cardiopulmonary medicine, autoimmune disease, gastroenterology, physical medicine, IV therapy, and Chinese medicine/acupuncture.

Dr. Shelat’s goal is to promote health through the fusion of Eastern and Western medicine paradigms. Through patient-centered education, he hopes to empower individuals to take control of their lives and make the lifestyle changes necessary for wellness optimization.

Aside from laughing and being a kid at heart on a daily basis, Dr. Shelat enjoys hiking, basketball, playing disc golf, and watching stand-up comedy.

Meghan Sperandeo, ND

Dr. Meghan Sperandeo is a licensed naturopathic physician completing her second year of residency at NCNM. She earned her doctorate in naturopathic medicine in 2013, graduating with high honors. During her internship, Dr. Sperandeo completed a six-month clinical mentorship in cardiopulmonary medicine.

Before attending NCNM, Dr. Sperandeo received her bachelor's degree in 2003 from McNeese State University in biological sciences and participated in the department's research program.

Dr. Sperandeo offers naturopathic primary care and has a strong dedication to providing comprehensive and individualized care to every patient. She believes strongly in the power of lifestyle counseling, nutrition, botanical medicine and homeopathy in managing both acute and chronic disease.