Meet the Onsight Team!

Located in the beautiful city of Berkeley, California, Dr. Johanna Lelke founded this chiropractic office in 2009 to serve the East Bay community.  She is joined in 2018 by associate chiropractors, Dr. Edward Espinoza, and Dr. Nick Predtechensky. With a combined 10 years of experience in massage therapyAmy Hale and Amanda Upchurch are devoted to restoring your body’s ease of movement. Robin Sweet is the backbone of our medical records and insurance billing department, and brings clarity to insurance details often shrouded in mystery. Lastly, Karina Polanco-Jimenez is our in-house personal trainer and Sarah Hart is our in-house acupuncturist.

Providing health and happiness in the

East Bay Community since 2009.

Dr. Johanna Lelke, DC

Doctor of Chiropractic

The quality of your care depends vitally on your caregiver. Dr. Johanna appreciates the privilege of being that person for you, using her own strength and flexibility to restore yours. Devoted equally to skill and support, she draws her greatest satisfaction from guiding self-healing and informing healthy habits.

Dr. Johanna graduated pre-med from the University of Massachusetts, where she sprinted and leapt her body into strain as a Division One heptathlete and pole vaulter. Hunching over cell culture and molecular biology experiments as a research technician in Massachusetts General Hospital’s neurogenetics lab, the dissonance between tortured posture and love of movement drew her first to chiropractic treatment and then to practice. Climbing New Hampshire’s sheer granite shifted to Oregon’s as she earned her doctorate from the University of Western States, and then to Yosemite when she came to the Bay Area in 2009. Rock climbing, trail running, mountain biking and skiing continue to remind her how crucial joint alignment and muscle release are to balancing the stresses of regular exertion.

Between office visits, you can find Dr. Johanna teaching a weekly yoga class at Bridges Rock Gym, volunteering with triathlon medical staff, or guiding her niece and nephew in the art of rock climbing. Stretch empowers focus, so when you come in, you’ll feel the depth of her attention and the attunement it invites.

Edward Espinoza DC, MS

Doctor of Chiropractic

Eddie was born and raised in Castro Valley, California. He attended Valley Christian High School in Dublin and chose to pursue the path of chiropractic medicine after seeing first hand how his mother benefited tremendously from her treatments of debilitating low back pain. Eventually, he took his studies to California State University Chico where he studied Small Business Management, with his chiropractic dream still in mind.

Eddie then attended the University of Western States in Portland, Oregon and earned his Doctorate of Chiropractic in December 2016. While at Western States, he also earned a Master’s Degree in Sports Medicine. This allowed much more hands-on experience with on-field injuries, rehabilitation, and sports-related injuries. Eddie’s goal in patient care include reducing pain as quickly as possible to regain activity and movement. Movement is life. Every system in the human body depends on movement to stay healthy, whether you are talking about the heart, muscles/joints, and even digestion. Movement directly correlates with one’s quality of life.

Traveling and live music are two of Eddie’s biggest passions outside of patient care. He also enjoys challenging Crossfit workouts, snowboarding, bouldering and watching Bay Area sports. Furthermore, he takes pride in providing athletic training and medical services to Valley Christian Vikings Football team as the on field doctor for home and away games.

Dr. Mykyta ‘Nick’ Predtechensky, DC

Doctor of Chiropractic

Dr. Nick believes that pain-free movement is a fundamental part of living your life to its fullest potential and is dedicated to helping you achieve that goal. Drawing on the science of chiropractic and his experience as a yoga instructor, Dr. Nick aligns with the Onsight team in his dedication to promoting better health.

Born and raised in a family of journalists in the slightly colder country of Ukraine, Dr. Nick emigrated to the United States in 2008 seeking a more liberal and diverse environment. Originally settling in Michigan to study journalism, his plans were interrupted when he came across a unique yoga studio where he witnessed countless people make the journey to better health and well-being. Inspired by the nurturing attitude of yoga he gathered the courage to leave behind the family craft after graduating from Michigan State University with a B.A. in Political Theory and Constitutional Democracy. He moved to California and earned his Doctorate from Palmer West College of Chiropractic. Still deeply influenced by his experience as a yoga instructor, Dr. Nick is committed to helping you reconnect with your body.

Right now, Dr. Nick is working on completing his Neurology Diplomate that qualifies him to better help concussion patients and various other conditions. When not sitting behind neurology textbooks, Nick spends his free time either dancing salsa in San Francisco or going on runs around lake Merritt, always feeling blessed to spread the benefits of chiropractic to our East Bay community.

Amy Hale, CMT

Certified Massage Therapist

Amy is excited to be joining Onsight’s lineup of stellar massage therapists in 2018.

A Bay Area native, Amy found her passion for body work after experiencing first hand the effects of working several years at a desk. She graduated from National Holistic Institute, where she was trained in a number of Eastern and Western modalities and interned at several chiropractic offices.

Amy takes individual needs into consideration to customize massage for clients by blending deep tissue, Swedish, shiatsu and sports modalities to address clients’ postural, range of motion issues, and chronic pain. She particularly enjoys working together with her clients to address muscular adhesions through deep point work and guided breathing. In addition to having a therapeutic touch, she is approachable, warm, communicative, strong and thorough. She is genuinely passionate about making you feel better, and expertly navigates to the bottom of what is going to be sure to achieve optimal results and facilitate relief.

Education and Continuing Education

Amanda Upchurch, CMT

Certified Massage Therapist

After Amanda received massage work on her psoas muscle through the abdomen to help with lower back pain, she became fascinated with human anatomy and kinesiology. Soon thereafter, she enrolled in and then graduated from the Nevada School of Massage Therapy in 2014. Amanda’s passion is helping people manage their pain through massage. She loves getting to know her clients— injuries, surgeries and all— to offer effective and compassionate support. She regularly uses cupping and deep tissue release in her therapy sessions.

Amanda is a Nevada native who recently moved to the Bay Area. She enjoys the outdoors and hiking. She has a strong background in essential oils and aroma therapy, which complements her work as a healer. Amanda has always been an animal lover and worked with the humane society for five years before beginning her massage therapy career.

Robin Sweet

Billing & Account Specialist

Robin has over 17 years experience in billing and coding for multiple medical specialties, but dedicated her last 10 years to the chiropractic profession. Early in her career, Robin was a claims processor for Regence Blue Cross Blue Shield of Oregon. She is fluent in the language of insurance and she enjoys helping to translate for our patients.

Robin is a true fan of chiropractic health care, so she became credentialed as a Certified Chiropractic Assistant in Oregon.  Outside of the workplace, she loves riding her ATV on the Oregon sand dunes, gardening, bonsai, and relaxing at home with her husband.

Onsight’s Partners!

In addition to our Berkeley-based team members, we also rely on our colleagues for some Onsight Workplace Wellness programs around the Bay Area. Karina Polanco-Jimenez and Sarah Hart are integral members of this group of seasoned chiropractors, health coaches, and massage therapists who share their warmth and expertise with employees at their workplace.

Karina Polanco-Jimenez

In-house personal trainer with PacWast Endurance

Sports saved Karina’s life after battling with a broken family that led her to find refuge in bulimia and anorexia as the quick solution to her problems, for her weight and body image were the only aspects of her life she had control of. This only led to a vicious cycle of falling into the pits of depression. Karina’s life changed drastically, for the better, during her last year of high school, after she moved from the High Desert to the city of Los Angeles where her new family allowed her to do sports. Karina’s desire and dream to play sports became a reality. Team sports gave Karina a sense of belonging she had never experienced before. Leading her school’s soccer team as their forward, in addition to her amazing performances jumping over hurdles and running almost every distance as a beginner for the school’s track team filled Karina with confidence that she could do great things and stripped her of fear from trying out new things in life. This newly acquired confidence and fearless spirit is what led her on a new adventure to Cal Berkeley for her undergraduate degree.

While studying at UC Berkeley, Karina continued to nourish her athletic passion and competitive spirit by training on her own and competing in local 5Ks. Always searching for new challenges, Karina self-coached and completed her first triathlon ever at the Oakland Triathlon Festival 2017, and placed 2nd in her age group (20-24). Karina fell in love with the sport, continued competing, and with only about a year of experience and the help of her team, PacWest Endurance, she has competed in National Championships and is on here way to represent Team USA 2019 at the Draft-Legal Sprint Triathlon World Championships in Switzerland.

Confidence, fearlessness, healthy body image, and self love are all qualities that Karina acquired as a result being active in sports and what motivated her to attain her Personal Trainer Certification to make a change in other people’s life as a Performance coach for PacWest Endurance. Karina believes that fitness and health is not a destination you can arrive at or something you can check off and think you are finished. Health and fitness goals one sets can be achieved through hard work and smart planning. Whether it is losing weight, gaining muscle, or improving sports performance, Karina desires to help others in ways that create natural and enjoyable habits that can be applied to everyday life. Karina believes health and fitness is a way of life. It is something we constantly have to work at and something we cannot live without.

Sarah Hart

LAc – In-house acupuncture

Sarah meets people where they are to empower them on their healing journey. Using acupuncture, Sarah helps patients reconnect to their own bodies and well-being.

Acupuncture supports resiliency in the body by stimulating it to heal itself. Using a scientific and holistic approach, it not only treats the symptoms, but the root causes of disease. Just as pain and disease can take us away from the activities we love, healing support can bring us back to life. Through treatment, she sees her patients’ lives come into balance with the relief of their symptoms, as well as improved sleep and, energy, better mental clarity, and a deeper sense calm.

After graduating Colby College pre-med with a degree in biology, she worked in the wildlife science, land use and watershed management fields, but was called back to medicine and patient care. When she learned that Chinese medicine treats by balancing the ecology of the human body, she knew she wanted to be an acupuncturist.

Sarah completed over 3,000 hours of didactic and clinical training to earn my MSOM, Master’s of Science in Acupuncture and Oriental Medicine at the Acupuncture and Integrative Medicine College in Berkeley, CA. She personalizes acupuncture treatments using diverse traditions including Dr. Tan’s Balance Method, Miriam Lee’s, Master Tung’s, and esoteric acupuncture. Her practice also integrates herbal medicine, medical qi gong, cupping, gua sha, and dietary therapy. She custom writes and prescribes herbal medicine formulas using both Chinese and western herbs.

She enjoys hiking, embodiment dance, yoga, qi gong, kayaking, mountain biking and long distance bike touring from Seattle to Maine. She can also be found lying in the sun on her boat home appreciating the water of the Bay.
BA in Biology from Colby College.

Master’s of Science degree in Acupuncture and Oriental Medicine (MSOM) from the Acupuncture and Integrative Medicine College in Berkeley, CA

Our Office

1530 5th St Suite A,
Berkeley CA 94710

Schedule an appointment with Onsight today!

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