Providers and Staff

The GW Center for Integrative Medicine proudly introduces its excellent team of highly qualified practitioners and staff. We are a team of passionate, caring, and experienced healthcare professionals who see each patient as a whole, and integrate our knowledge and experience to create a unique treatment plan for every healing journey. We meet every week to discuss our patients’ medical cases, and to share the newest medical breakthroughs with each other and with the extended medical community.


Our Directors

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Mikhail Kogan, MD

Medical Director

Integrative Medicine Fellowship Director
Primary Care Internal Medicine, Geriatrics, Functional Medicine

Dr. Kogan is the world leader in the newly established field of Integrative
Geriatrics. He is the editor of the field’s textbook “Integrative Geriatric Medicine
Textbook”, published by Oxford University Press. Dr. Kogan is frequent speaker
at variety of international conferences on the number of different integrative
medicine [read more]


Tatiana Rosten

Executive Director

General Manager
Certified Hypnotherapist and Transformational Health Coach

Tatiana Rosten is the Executive Director of the GW Center for Integrative Medicine. She is responsible for overseeing day-to-day operations of the Center, making marketing, business, and financial decisions. She plans and manages work in liaison with the Board of Directors.

Tatiana also works as a Certified Hypnotherapist and Transformational Health [read more]


Our Providers

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Mara Benner

Spiritual Director
Certified Energy Medicine Practitioner
Reiki Master
Integrative Reflexologist
Health Coach

Mara Benner’s  Four Directions Wellness blog.

Mara Benner has over 30 years in the healthcare and aging field.

She is now focused on mind-body-spirit connections through Reiki, Integrative Reflexology, meditation/guided imagery, Yogic Chakra Healing, transitional [read more]

Lisa Bregman, LMT

Massage Therapy, Trager Therapy

Applying a dynamic approach developed by Dr. Milton Trager to treat patients with a range of physical conditions, Lisa will gently move your body while giving you a massage. Over the course of an hour-long session, the combination of rocking, compression and elongation of the back and limbs brings a sense of deep rest and unwinding to the receiver’s [read more]


Ben Bregman, MD

Integrative Psychiatry

Please read Dr. Ben Bregman’s BLOG

Dr Bregman believes in the inherent resilience of the human spirit and its ability, when supported with compassion and encouraged with curiosity, to overcome any obstacle. With that in mind, he uses an integrative psychiatric approach to help people achieve greater [read more]


Jeffrey Edwards, LMT

Massage Therapy and Tai Chi Chuan

Jeffrey Edwards provides massage therapy and Tai Chi Chuan instruction at the Center for Integrative Medicine. Nationally certified and licensed to practice massage therapy in Virginia and the District of Columbia, Jeffrey has a unique background that serves the medical needs of GWCIM clients.

In the early 1990s Jeffrey studied traditional Chinese acupuncture [read more]


Yael Flusberg, C-IAYT, E-RYT500, RMT, MS

Integrative Yoga Therapist
Reiki Master

Yael Flusberg is a Reiki Master Teacher, Board-Certified Polarity Therapist, yoga therapist, leadership coach, organizational facilitator, and poet. At GWCIM, she is offering sessions in Reiki as well as Yoga Therapy. Her individual sessions help patients integrate physical, creative and spiritual aspects into their own unique healing journeys.

Yael [read more]


Angela N. Gabriel, MSOM, L.Ac.

Japanese Style Acupuncture
Oriental Medicine for Children

Angela Gabriel joined the GW Center for Integrative Medicine team as an acupuncturist and Chinese herbalist. As a young scientist Angela became interested in Chinese medicine after [read more]

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Elizabeth Goldberg, LMT

Group Wellness Program Manager
Group Medical Wellness Visits

Elizabeth Goldberg, LMT is the Group Wellness Program Manager at the GW Center for Integrative Medicine. She is a practicing massage therapist in the District of Columbia and a health and mindfulness educator.

Elizabeth [read more]


Tiffany C. Hoyt, M.Ac., Dipl. O.M.

Chinese Herbal Medicine

Tiffany C. Hoyt is an acupuncturist and Chinese herbalist. She holds a Master’s degree in Acupuncture from the Maryland University of Integrated Health, is an NCCAOM Board certified Diplomat of acupuncture and herbal medicine, and holds certificates in Toyohari—painless, non-insertion Japanese acupuncture, as well as Reiki and SoTai body therapies. She [read more]

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Luann Jacobs, MA-CCC/SLP, RMT

Reiki Master Teacher
Biofeedback Practitioner

Luann Jacobs, SLP/ RMT, is retired from an active forty plus years as a Speech-Language Pathologist specializing in adult rehabilitation and cognitive retraining in functional environments. In addition to a Master’s degree in Speech Pathology from Indiana University, she is a Reiki Master Teacher in the Usui School of Natural Healing, a graduate in [read more]


Marianna Ledenac, ND

Naturopathic Medicine
FirstLine Therapy

Marianna Ledenac, ND is a naturopathic physician with over 12 years experience.  She provides a comprehensive and personalized approach to healthcare that focuses on addressing the underlying causes of disease rather than solely treating the symptoms.  Dr. Ledenac sees patients of all ages, adults and children, for a wide range of health conditions [read more]


Andrea Leonard-Segal, MD

Mind-Body Medicine

Dr. Leonard-Segal graduated with honors from the George Washington University Medical School and is Board Certified in Internal Medicine and Rheumatology.

She has practiced medicine since 1982 and has devoted the past five years to helping patients overcome back and neck pain, fibromyalgia, chronic tendon complaints and similar conditions. She emphasizes [read more]


Mary Naden

Alexander Technique

Mary Naden is an ATI Certified teacher of the Alexander Technique who brings encouragement, sensitivity, commitment and an articulate energy to her work. She completed three years of training at the Philadelphia School for the Alexander Technique, apprenticed with Susan Cohen at Catholic University, and additionally trained with some of the finest teacher-trainers [read more]

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Grace Ogden

Mindfulness Teacher

Grace Ogden is a Qualified MBSR Teacher with the UMass Medical School Center for Mindfulness who draws on a 27-year practice of mindfulness and meditation for her teaching. She lives the work in daily life and appreciates how group learning supports individual efforts to improve health and wellness. She knows mindfulness is an unparalleled tool for reducing [read more]


Deirdre Orceyre, ND, MSOM, L.Ac.

Naturopathic Medical Director

Naturopathic Medical Director
Naturopathic Residency Director
Naturopathic Medicine
Traditional Chinese Medicine

Dr. Deirdre Orceyre, ND, MSOM, L.Ac., is a graduate of the National College of Natural Medicine, a leading institution in natural health education in the U.S. In 2004, she graduated cum laude with a Doctorate in Naturopathic Medicine and a Masters of Science in Oriental Medicine. Following her medical training, Dr. Orceyre participated [read more]


Mikhail Sogonov, PhD

Indoor Environmental Consultant
Home Mold Inspection

Mikhail Sogonov, Ph.D., heals people’s homes by investigating potential biohazard problems in indoor environments. The main focus of his investigations is mold. Dr. Sogonov employs the two most important skills for resolving mold problems in buildings: knowledge of mycology and knowledge of construction industry practices.

Dr. Sogonov [read more]

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Mary Starich, Ph.D, LMT

Certified Advanced Rolfer

Mary Starich provides Rolfing® Structural Integration at GWCIM.  Mary began working professionally in bodywork as a massage therapist in 1998 and certified as a Rolfer in 2001, completing her advanced Rolfing® Certification in 2007. She completed a two-year certification program in cranial sacral manipulation with the Colorado Cranial Institute in 2011. [read more]


Julie Wendt, MS, CNS

Nutritionist & Health Coach
Integrative Health and Nutrition Counseling
Skype name: jwendt24

Julie Wendt offers functional nutrition counseling that is rooted in a simple and compelling belief: the human body has powerful healing capacities that, when supported, can bring a person to his or her optimal state of health.

Julie works closely with each client to support the diet and lifestyle recommendations from his or her doctor. Client support [read more]



Our Staff

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Juan Carlos Enciso

Homeopathic and Medical Consultant

Juan Carlos has served for nine years as a family physician in his native Peru, in settings as diverse as the Amazonian rainforest, the Andes, and Lima, incorporating the best scientific training and knowledge into caring for his patients. His lifelong  interest in integrative medicine began in his first year of medical school, when Juan Carlos developed [read more]

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Jonathan Hickson, MD

Infusion Center Tech

Originally from Brooklyn, New York, Dr. Hickson is the Center’s new Infusion Tech. After getting his Medical Doctorate and Masters in Public Health, Dr. Hickson has decided to take time to understand integrative medicine to better inform his future patients the benefits of complementary medicine. He currently also teaches Anatomy and Physiology one day a [read more]