About Nest
Our Story
Nest Acupuncture was founded in 2006 by Sara Stieg and Tiffinie Tang, both with extensive post-graduate training in reproductive medicine, functional nutrition and Chinese medicine. Sara, Tiffinie and the entire team at Nest deeply understand the unique emotional and physical challenges that women face, particularly throughout their fertility journey. They have an immense amount of empathy for their patients and feel that it’s an honor to support women in a caring and personal way during one of the most important and intimate times of their lives. They get to know each patient, tune into their unique needs and challenges, and treat them with a gentle hand and a kind heart. It’s pure joy for the team to help the patients heal and live well.
Our People
Sara Stieg
MS, LAc, FABORM | Co-Founder
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Sara is a licensed acupuncturist who specializes in women’s health, fertility and pregnancy support. From the start of her practice, her focus has been on reproductive medicine. She is guided by the principles of integrative medicine, often collaborating with doctors and other health care practitioners to maintain continuity of care.
Passionate about helping couples achieve their goal of becoming parents, it brings her great joy to be part of this personal and meaningful journey. The foundation of her nurturing and supportive approach is a commitment to keeping her patients informed so they can be active participants in achieving optimal health.
Sara was first introduced to acupuncture as a student at the UC Santa Cruz where she earned a Bachelors degree in psychology. After experiencing great success using Chinese medicine to treat her own health issues, she continued her graduate studies in Traditional Chinese Medicine so that she could share its benefits with others.
Sara completed a Masters of Science degree from the American College of Traditional Chinese Medicine in San Francisco. She has also received advanced postgraduate training in the fields of gynecology, reproductive medicine, pregnancy and pediatric acupuncture.
While she is no longer associated with PFC, in 2007 Sara co-founded the Acupuncture Program at Pacific Fertility Center (PFC), a leading Assisted Reproductive Therapy Clinic in San Francisco. The focus of the Acupuncture program was to provide onsite treatments to women on the day of their embryo transfer and support them before and after their cycle. Sara continues to provide fertility acupuncture to patients that are undergoing assisted reproductive therapies at clinics in the San Francisco Bay area.
Sara has been a Fellow of the American Board of Oriental Reproductive Medicine (FABORM) since 2009. ABORM certification demonstrates the highest competency and advanced knowledge in the field of both Western and Oriental Reproductive Medicine.
Sara lives in West Marin and keeps her own balance by spending time with her husband and their three kids, hiking, practicing yoga and enjoying travel whenever possible.
Michelle Medina
MS, LAc | Practitioner
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Michelle Medina, L.Ac is California-licensed acupuncturist and herbalist. She received her Master’s of Science in Traditional Chinese Medicine from the Acupuncture and Integrative Medicine College, Berkeley.
Michelle is passionate about women's health, pregnancy, birth, and postpartum care. She has additional training in Mayan Abdominal Massage and energetic modalities such as Reiki, Polarity, and Medical Qigong.
She enjoys helping her patients enhance their overall health, improve their fertility, and watch their families grow.
Teresa Rivera
MS, LAc | Office Manager
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Teresa Rivera is a California State Board licensed acupuncturist. You’ll find her supporting our Nest team behind the desk upon your arrival. Feel free to call or email her with any questions you have to prepare for your appointment or with your insurance.
Her warmth, spirit, and innate curiosity about everyone she meets makes her the heart of our practice. Don’t be surprised if you are lucky to have her treat you at your next embryo transfer, as Teresa finds holding space with patients during this time to be deeply gratifying.
Teresa lives in her hometown of San Francisco and enjoys connecting with family and friends over deep conversations with chilled prosecco and lots of laughter.
Jessica Chimento
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Jessica Chimento is a California licensed acupuncturist, herbalist, and Doctor of Acupuncture and Chinese Medicine. Jessica is committed to supporting women to feel more empowered in their health journeys with a focus in fertility, prenatal, and postpartum care. Her treatment approach strives to achieve balance both mentally and physically by viewing the body as a whole and using an integrative and traditional Chinese medicine approach. Jessica always prioritizes creating a safe and healing space by focusing on mental ease and tension release. In addition to fertility and women’s health, her experience and interests include treating pain and musculoskeletal complaints, dermatology, and digestive disorders.
While pursuing her doctorate from the American College of Traditional Chinese Medicine Jessica interned in the stroke rehab ward at California Pacific Medical Center, Glide church in San Francisco’s Tenderloin neighborhood, and the Women’s Resource Center program run by the San Francisco Sheriff’s Department for formerly incarcerated women. She was also a Spanish language guest lecturer for the Cancer Awareness, Research, and Education program at Zuckerberg General Hospital.
Jessica was born and raised in San Francisco to Salvadoran and German-Jewish parents. From a very young age, she observed her great grandmother practicing traditional mesoamerican medicine as a curandera, which sparked a deep love and passion for healing, community wellness, and traditional and herbal medicine. She is an avid traveler, having been to over 30 countries, and is committed to serving and empowering marginalized communities through acupuncture and herbal healing.
Dr. Tiffinie Tang
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Starting December 1st, 2024, you can find Dr. Tiffinie practicing exclusively in Alameda at Good Witch Wellness & Apothecary
* In addition to services offered at Nest, both Tiffinie and Sara provide ART supportive care for patients undergoing IVF or IUI's at Spring Fertility, UCSF Center for Reproductive Health, RMA, Dr. Aimee Evazzedeh, RSC, CCRM, Zouves Fertility Center, and other Bay Area fertility clinics.