On the stunning island of Oahu lies Oahu OB/GYN, a unique clinic providing advanced obstetric and gynecological treatments with an additional menu of trendy aesthetic services. With convenient locations in downtown Honolulu and Kapolei, Hawaii, women can access safe and sympathetic care for all of their feminine health needs. 

The staff at both locations treats each patient like their own family. They provide a judgment-free ear to listen to patients’ concerns with understanding and confidentiality. During treatment, patients have access to the latest da Vinci Xi® robotic system for minimally invasive surgeries that take a delicate hand. Lynette W. Tsai, MD is recognized for her skills with using the robotic system for hysterectomies, myomectomies, and other gynecologic surgeries.

In addition to women’s health services like contraception, obstetrics, Pap smears, and endometrial ablation, the team at Oahu OB/GYN knows the value of confidence when it comes to wellness. For this reason, they’re proud to offer aesthetic treatments like wrinkle reduction, cellulite reduction, and vaginal revitalization all using TempSure™ advanced systems like the Envi and the Vitalia. 

Whether you’re in search of a trustworthy team to guide you through pregnancy and childbirth or want to treat yourself to touchably smooth skin after years of weathering and aging, the team at Oahu OB/GYN can create a personalized treatment plan for you to meet each of your goals. To book a consultation with one of the leading gynecologists on the island, call Oahu OB/GYN or use the user-friendly online booking tool today.

read more


Lynette Tsai, MD

Lynette W. Tsai, MD, is the founder of Oahu OB/GYN. For over 21 years, she has applied her passion and talent for women’s health in the private practice setting. She provides complete obstetric and gynecologic care to women and is skilled in minimally invasive laparoscopic surgery.

Dr. Tsai graduated summa cum laude from the University of California at Los Angeles (UCLA) with a bachelor’s degree in Biology with departmental honors. She earned her MD degree at the UCLA School of Medicine. She is a member of the Delta chapter of Alpha Omega Alpha medical honor society. In 1999, she completed her residency in obstetrics and gynecology at the University of Hawaii John A. Burns School of Medicine.

Today, Dr. Tsai performs minimally invasive surgeries, such as robotic assisted laparoscopic hysterectomies, using the da Vinci Xi® surgical system. This surgical system leaves only 8mm scars and patients may go home on the same day. She is one of the few female gynecologists on the island to use the latest da Vinci Xi robotic system for operations.

At Oahu OB/GYN, Dr. Tsai performs routine gynecological exams, Pap smears, and colposcopies, and assists women through every step of pregnancy and birth. She personally performs all the deliveries and surgeries for her patients.

In her free time, Dr. Tsai enjoys working out at the gym, doing Zumba, and spending quality time with her three children. She is fluent in English, Cantonese, and Mandarin.

Kathy Gadaingan, APRNx, FNP-BC, MSN, RNC-OB, E-CFM

Kathy is a family nurse practitioner, board-certified by the American Nurses Credentialing Center and licensed to practice in the State of Hawaii. She received both her undergraduate degree and Master’s in nursing degree at Hawaii Pacific University. Kathy began her nursing career as a Labor and Delivery nurse and is a certified inpatient obstetric nurse and certified in electronic fetal monitoring. Her experience includes work in family practice, emergency room, and clinical nursing instructor for Chaminade University.

Kathy joined Oahu OBGYN in June of 2018. She is native Hawaiian and enjoys gardening native Hawaiian plants. She is an avid sports fan and strives to become a better golfer. Kathy lives with 3 happy American Pitbull Terriers and one grouchy cat.

Erica Cadiz-Sales, APRN

Erica attended the University of Southern California where she obtained her Bachelors Degree in Nursing in 1999. She returned to Hawaii to serve her community and at the same time, attended the University of Hawaii at Manoa to advance her degree. She received her Master’s Degree in Nursing and is board certified in Family Nurse Practitioner.

Erica started her nursing career in maternal-child nursing, newborn nursery and special care nursery. She also supervised caregivers who cared for the adult mental health in community setting. She loves to educate and also has been an adjunct professor in Maternal-Child Nursing at Chaminade University of Honolulu for 8 years. Providing the delivery of care in labor and delivery, as well as in women’s health has always been a passion for Erica. She is happy to join Oahu OBGYN and share her knowledge of providing proficient quality care.

Erica enjoys the beauty of nature. She loves hiking, running, or just spending time with her family at home.