Find a Top OBGYN Near Me in Simi Valley, CA – Book an Appointment Instantly

Dr. David Seil Kim, MD, PhD, is a board-certified OB/GYN with nearly 30 years of experience in women’s health, advanced surgical care, and medical education. He is widely recognized for his medical leadership and long-standing commitment to clinical excellence.

As the founder of Yunella Women’s Health, a boutique women’s health practice serving Mid City West and greater Los Angeles, Dr. Kim is dedicated to providing patient-centered care that blends modern technology with compassion and continuity.

Dr. Kim earned his BS in Biochemistry and Cell Biology from UC San Diego and his MD from SUNY Downstate, followed by OB/GYN residency training at George Washington University in Washington, DC. He later completed a PhD in Clinical Research and an MBA through an NIH-funded program, bringing a rare, research-driven perspective to modern women’s health
care.

For 15 years, Dr. Kim served at Cedars-Sinai Medical Center, where he held key leadership roles, including Assistant and Interim Program Director of the OB/GYN Residency Program. He has held academic appointments as Associate Clinical Professor at UCLA and USC and currently serves on faculty at Charles Drew University, mentoring and training the next generation of physicians.

Dr. Kim is locally and nationally recognized for academic, clinical, and physician leadership excellence, with honors including Castle Connolly Top Doctor (2025) and Los Angeles Magazine Top Doctor (2020–2024). He is a Diplomate of the American Board of Obstetrics and Gynecology, an ABOG Oral Boards Certifying Examiner, and a recipient of National Teaching Awards from APGO and CREOG, as well as the California Medical Association Foundation Robert D. Sparks Leadership Achievement Award. He is also a Fellow of the American College of Obstetricians and Gynecologists.

His clinical focus includes advanced pregnancy care, fertility, PCOS, endometriosis, menopause, fibroids, and medical weight management. Dr. Kim empowers women with innovative treatments, advanced surgical expertise, and highly personalized care at every stage of life.

Zoya Preys, MD, is a distinguished medical professional in the Mid-Wilshire area of Los Angeles, California, specializing in obstetrics and gynecology. In addition to providing specialized care to LGBTQ+ couples and exemplary women’s wellness care, Dr. Preys helps women facing menopause balance their hormones with the use of bioidentical hormones from Biote®.  

With a strong emphasis on microbiology and molecular genetics, Dr. Preys earned her Bachelor of Science with honors from the prestigious University of California at Los Angeles in 1991. Her passion for obstetrics and gynecology led her to complete a rigorous four-year residency at Los Angeles County – University of Southern California. Dr. Preys’ dedication to her field was evident even in her formative years, earning her several awards, including the Alpha Omega Alpha honor in 1995.

Since establishing her practice, Dr. Preys has helped women navigate their gynecological health. She diagnoses and treats fibroids, endometriosis, and ovarian cysts. She emphasizes the importance of routine women’s care that includes regular wellness exams, HPV screenings, and Pap Smears to ensure their holistic well-being.

Dr. Preys also offers her expertise in vaginal cosmetic procedures, particularly complex vaginal restorations, benefiting patients who’ve undergone female circumcision.

Women benefit immensely from Dr. Preys’s experience and compassionate care. Make an appointment with Dr. Preys today by using this website or by calling her office.

Dr. Joslyn Gumbs is a leading OBGYN in the Greater Los Angeles, CA, area, dedicated to helping women of all ages, from teens to seniors, get the skilled care they need to be as healthy as possible throughout every stage of life. Her experience, advanced training and compassionate approach have earned her the confidence of all her patients and made her a favorite healthcare provider among L.A.-area women.

Dr. Gumbs completed a Bachelor's degree in chemistry at the University of Manitoba, followed by a second Bachelor's degree and certification in cytology (cells) at Loma Linda University. She earned her M.D. at the University of California, Davis, where she garnered multiple honors, and completed her residency at White Memorial Medical Center. In addition to being certified by the American Board of Obstetrics and Gynecology, Dr. Gumbs also been certified by the International Academy of Cytology and the American Society of Clinical Pathologists, and she's a member of the American Medical Association and the American College of Obstetrics and Gynecology.

At her practice on Sunset Boulevard, Dr. Gumbs offers state-of-the-art care in a relaxed, friendly environment so patients can feel confident they're receiving the best care possible. Services include but are not limited to:

• Well woman care
• Pregnancy care
• Family planning services and counseling
• Fertility counseling and treatment
• Abnormal Pap smear testing
• STD diagnosis and treatment
• Gynecological care
• Menopause care
• High-risk pregnancy care

Throughout her career, Dr. Gumbs has remained committed to providing the most advanced and safest care for every patient, carefully crafting an individual plan of care for each woman she treats. Her commitment to learning new techniques and technology ensures she can provide top-quality care based on the most current information.

Dr. Arus Zograbyan is a leading OB/GYN physician providing care for patients in Los Angeles, California area. She is a board-certified OB/GYN and holds a position of Chair of OB/GYN Department at Hollywood Presbyterian Medical Center since 2013. She is also a fourth-generation physician. Her clinical expertise includes comprehensive obstetric care for both low risk, and high risk pregnancies, such as pregnancies complicated by diabetes, hypertension, thyroid disease, cervical incompetence, multiple gestation, etc. She also delivers babies with congenital malformations in cooperation with USC perinatologist group and Children’s Hospital of Los Angeles, California. Dr Zograbyan provides care to a multi-cultural population of patients, and proudly delivers personally more than 95% of her patients’ babies.

Dr Zograbyan also provides preventative care from adolescence through menopause, and offers multiple gynecologic services such as birth control options including IUDs, Nexplanon and sterilizations, STD screening, detection and treatment of abnormal PAP smears, infertility evaluations and treatments, management of abnormal bleeding, fibroids and pelvic organ prolapse, and whole array of gynecologic surgeries.

Dr. Zograbyan received her Doctorate of Medicine from the Yerevan State Medical University in Armenia, where she graduated with honors at the top 2% of her class. She then moved to United States and completed an internship and residency in obstetrics and gynecology at the Women’s and Children’s Hospital, Los Angeles County + University of Southern California Medical Center in Los Angeles, California. She has performed research in the areas of polycystic ovary syndrome, thyrotoxic cardiomyopathy in pregnancy, and perinatal complications in women with hypothyroidism. During her residency, she received two prestigious awards for her research.

Dr. Zograbyan received her board certification in Obstetrics and Gynecology in 2005 and is a Fellow of the American College of Obstetricians and Gynecologists since 2007. Her special interests include endocrine disease during pregnancy, particularly diabetes and thyroid disorders.

To Dr. Zograbyan the most rewarding part of her practice is educating patients about their health and pregnancy, helping them to make informed decisions and become active participants in their health care. She is fluent in Armenian, Russian and Spanish.

With an extensive background in women’s health, Raffi Chalian, MD, FACOG, is a highly regarded and trusted OB/GYN. He welcomes new and existing patients to his private practice Raffi Chalian, M.D. in Glendale, California.

Dr. Chalian earned his Doctor of Medicine from the Faculty of Medicine at Imperial College in London. After relocating to New York, Dr. Chalian went through an internship at New York University Downtown Hospital. He then completed a top-rated obstetrics and gynecology residency and fellowship at the University of Pennsylvania in Philadelphia.

Currently, Dr. Chalian is board-certified in gynecologic oncology and obstetrics and gynecology through the American Board of Obstetrics and Gynecology. He’s also a Fellow of the American Congress of Obstetricians and Gynecologists.

Throughout his career, Dr. Chalian has held several prestigious leadership positions in the field of obstetrics and gynecology. Dr. Chalian has held faculty appointments at some of Philadelphia’s most distinguished educational facilities, including the University of Pennsylvania, Thomas Jefferson Medical School — now Sidney Kimmel Medical College —  and Temple University. He also served as a clinical assistant professor at the University of Nevada, Reno.

Fluent in English, Armenian, and Greek, Dr. Chalian enjoys conversing with patients who would otherwise struggle with language barriers. He’s known for providing patient-centric care, where each decision is made in conjunction with the individual patient after discussions about various treatment plans. Patients of Dr. Chalian appreciate his excellent bedside manner and natural ability to be attentive during appointments. In his spare time he enjoys skiing, hiking and spending time with his family and friends. He believes that good interpersonal relationships (with friends, family and colleagues) capture the essence of good living.

I began my training in womens care in the Navy in 1985. I have served on a ship, worked as an Emergency Room physician, and a general surgeon while on board ship. Since that time many years ago, I have treated many many women for all types of medical issues, both acute and chronic. I have come to appreciate womens health issues. My experience ,candor, and listening will hopefully provide to you the care you seek. Here is a state regulation which needs posting: The Open Payments database is a federal tool used to search payments made by drug and device companies to physicians and teaching hospital. It can be found at https://openpaymentsdata.cms.gov.

Dr. Hill has recently retired from delivering babies to focus solely on her gynecology practice. She has special interest in contraception, menopause, hormonal imbalances, infertility, abnormal Paps and laser hair removal.