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Dr. Clark has a passion for healing and for improved patient outcomes. Following fellowship training, Dr. Clark was recruited by Hoag Hospital as the first Medical Director for the Womens Center for Continence. He received his medical degree from the University of Utah School of Medicine and completed his residency in Obstetrics and Gynecology. After completing residency, he further specialized by completing a Fellowship in Female Pelvic Medicine and Reconstructive Surgery ("Urogynecology") at Indiana University/Methodist Hospital in Indianapolis, IN.

Dr. Clark is nationally recognized for his surgical skills and teaches advanced surgical techniques to other physicians throughout the United States. In 2008, he was invited by the Jordanian government to teach advanced gynecology surgery techniques to the Ministry of Health Gynecology Division. Dr. Clark uses a wide range of surgical and laparoscopic techniques and a da Vinci® robot. He participates in the design and development of surgical instruments and uses cutting edge urogynecology surgery techniques, products, and modalities.

Professional Recognition

• Board Certified, OB/GYN
• Board Certified, Female Pelvic Medicine and Reconstructive Surgery
• Member, Phi Beta Kappa
• Fellow, American Association of Gynecologic Laparoscopists
• Invited Guest of Government of Jordan to teach minimally invasive gynecologic surgery

Dr. Clark is an active member of the Orange County community having served as a youth soccer coach for over a decade and as a Scout Master in the Newport Beach Boy Scouts program. He enjoys hiking, camping and ocean sports. You may see him rowing a scull in the Newport Bay in the early morning hours. Dr. Clark is a family man and has been married to his wife for 35 years. Together they have four children. 

Nathaniel DeNicola, MD, MSHP, FACOG, is a board-certified obstetrician and gynecologist who sees patients at Orange County OBGYN in Newport Beach. He grew up in Los Angeles and Orange County, rooting for the Dodgers and Lakers. When traveling, he always makes In-N-Out his first stop when returning to California. He enjoys bodysurfing on the peninsula in Newport Beach and taking his one-year-old daughter, Keaton, to swim class.

Nathaniel has Orange County roots: he attended high school at Santa Margarita and completed medical school at the University of California, Irvine.  

Nathaniel also has professional experience outside California: he completed residency in obstetrics and gynecology at Tulane University and still returns to New Orleans annually to present lectures and enjoy charbroiled oysters.  After residency he earned a Masters of Science in Health Policy Research (MSHP) with the Robert Wood Johnson Clinical Scholars program at the University of Pennsylvania.

Prior to returning to California in 2020, Nathaniel worked on health policy in Washington, DC, where he held a joint appointment with Johns Hopkins Medicine. He is a national leader on emerging telehealth policy and serves as the resident telehealth expert for the American College of Obstetricians and Gynecologists. He also has international leadership in environmental health policy and holds liaison roles with the American Academy of Pediatrics, the International Federation of Gynecology and Obstetrics, and the World Health Organization.

Yonatan Mahller, MD, Ph.D., provides expert obstetric and gynecologic care to women of all ages at Orange County OBGYN in Orange County. Patients can access a full range of services at his office in Newport Beach, California, where he offers well-woman care, care for low and high-risk pregnancies, pre-conception and infertility counseling and treatment for menopause. Dr. Mahller combines excellent surgical training with cutting-edge technology, including the MonaLisa Touch® laser that treats vaginal discomfort associated with menopause and urinary incontinence. He is affiliated with Hoag Hospital.

Dr. Mahller is a native of Southern California. While at the University of California at Santa Barbara, he obtained a Bachelor’s degree in physiology and a Master’s degree in molecular biology. He then relocated to the Midwest to attend the University of Cincinnati College of Medicine, where he completed a dual degree program, obtaining his M.D. and a Ph.D. in developmental biology. He then returned to California and completed residency in obstetrics and gynecology at the prestigious Cedars Sinai Medical Center in Los Angeles.

Throughout his medical training, Dr. Mahller has won numerous awards recognizing his caring bedside manner and stellar surgical skills. While in graduate school, he performed significant preclinical research studies utilizing novel anticancer agents and authored numerous publications on topics such as cancer stem cells. He has given multiple presentations at international scientific meetings. During residency, Dr. Mahller created and implemented a course for OB/GYN residents, teaching them the Spanish needed to provide care to Spanish-speaking patients.

Dr. Mahller is board certified by the American Board of Obstetrics and Gynecology (ABOG) to provide a wide range of women’s health services, including pregnancy care and delivery, gynecology, minimally invasive surgery, infertility and well-woman care. His patients can count on him to devote the time needed to answer their questions, get to the underlying cause of their symptoms, and develop an individualized treatment plan.

When he’s not caring for patients, Dr. Mahller likes to travel, cook, and spend time with his family.

Catalin Marinescu, MD, FACOG, specializes in pelvic surgery with an emphasis on minimally invasive procedures at OBGYN CARE in Newport Beach and Irvine, California. He performs gynecologic surgeries, such as hysterectomy and reconstructive procedures for prolapse or other pelvic floor defects, as well as procedures to treat urinary incontinence. Dr. Marinescu has affiliations with Hoag Hospital Newport Beach and Hoag Hospital Irvine.

Dr. Marinescu had an unparalleled 10 years of post-graduate residency training. He did a general surgery program at Carol Davila University of Medicine and Pharmacy in Bucharest, Romania and was trained in obstetrics and gynecology at the prestigious Mount Sinai Hospital Medical Center in Chicago, affiliated with Rush University.

Highly trained in obstetrics and gynecology, including infertility, Dr. Marinescu offers advanced prenatal diagnosis for high-risk pregnancies and follows the safest and most effective guidelines for delivery. His results are outstanding in difficult deliveries and minimally invasive surgeries, with over 200 da VinciⓇ robotic surgeries performed. 

Due to his unique worldly experiences on both sides of the Atlantic, Dr. Marinescu understands the impact of different cultures on each woman’s unique personality. He is attentive to each woman’s concerns and respectful of her time. He exercises great compassion and care with his patients, and works in a collaborative effort with other specialists to determine the best course of action for each patient’s specific journey. 

Women of all ages receive comprehensive and compassionate care by an all-female staff at Women 2 Women Medical Center in Irvine, California. Led by G. Lara Bhatnagar, MD, a board-certified OB/GYN, the warm and welcoming staff greets you with a smile from the moment you call or request an appointment online, and they go out of their way to accommodate your needs. Dr. Bhatnagar cares for each patient from the first visit, throughout their pregnancy, delivery of your baby, and beyond. As an OB/GYN for several decades, Dr. Bhatnagar has delivered over 3,000 babies and completed over 1,000 surgeries successfully, receiving several awards recognizing her care and knowledge, including the Top OB/GYN in Irvine Award and the Orange County Circle of Care Award.

Because of their ability to serve the needs of diverse populations, Women 2 Women Medical Center is one of only 21 practices nationwide to receive a competitive grant from the National Committee for Quality Assurance (NCQA).

Dr. Bhatnagar and her staff specialize in minimally invasive surgeries, including colposcopy, hysterectomy, and hysteroscopy for various gynecological issues. The doctor also provides maternity care, routine annual preventive exams, and care for complex gynecologic issues such as endometriosis, fibroids, or infertility treatment. With an all-female staff, the entire team understands the unique complex challenges women face and work with each patient to navigate the process of diagnosis and treatment. Committed to treating every patient as a whole, the mind and body connection that affects every individual’s wellbeing, Dr. Bhatnagar and her staff make the time to get to know patients as individuals to provide the highest quality care.

To schedule an appointment, call Women 2 Women Medical Center, or use the online booking tool.

Catalin Marinescu, MD, FACOG, specializes in pelvic surgery with an emphasis on minimally invasive procedures at OBGYN CARE in Newport Beach and Irvine, California. He performs gynecologic surgeries, such as hysterectomy and reconstructive procedures for prolapse or other pelvic floor defects, as well as procedures to treat urinary incontinence. Dr. Marinescu has affiliations with Hoag Hospital Newport Beach and Hoag Hospital Irvine.

Dr. Marinescu had an unparalleled 10 years of post-graduate residency training. He did a general surgery program at Carol Davila University of Medicine and Pharmacy in Bucharest, Romania and was trained in obstetrics and gynecology at the prestigious Mount Sinai Hospital Medical Center in Chicago, affiliated with Rush University.

Highly trained in obstetrics and gynecology, including infertility, Dr. Marinescu offers advanced prenatal diagnosis for high-risk pregnancies and follows the safest and most effective guidelines for delivery. His results are outstanding in difficult deliveries and minimally invasive surgeries, with over 200 da VinciⓇ robotic surgeries performed. 

Due to his unique worldly experiences on both sides of the Atlantic, Dr. Marinescu understands the impact of different cultures on each woman’s unique personality. He is attentive to each woman’s concerns and respectful of her time. He exercises great compassion and care with his patients, and works in a collaborative effort with other specialists to determine the best course of action for each patient’s specific journey. 

Karie McMurray MD, FACOG, is a board-certified OB-GYN helping patients in her office at Conejo Women’s Medical Center, located in Thousand Oaks, California in the Conejo Valley area near Westlake Village. She’s devoted to serving all the health care needs of women in a warm and caring environment, including bioidentical hormone therapy, osteoporosis, polycystic ovarian syndrome, incontinence, birth control, body contouring, and many other gynecologic needs.

Dr. McMurray has been involved in health care for over 25 years. She graduated from USC School of Medicine, received a master’s degree in nursing from UCLA, and a Bachelor of Science in Nursing from the University of Utah. Dr. McMurray is trained in general obstetrics and gynecology, family practice, and certified in da Vinci® minimally invasive robotic surgery. She is certified in MonaLisa Touch and SculpSure laser therapy. For more than 20 years of experience prescribing bio-identical hormones, she is a specialist in the hormonal needs of patients from adolescence through menopause.

She and her husband Dr. Kyle Himsl, live in Westlake Village with their two children. 

A native of Kashmir, Dr. Qadri cherished a dream of being a physician and surgeon like her father. As the valedictorian from her high school, she applied to medical school and won a full scholarship to one of the most prestigious medical schools in India, Government Medical College.

Dr. Qadri did her residency at Beaumont Health – Dearborn, one of the leading health care systems in the state of Michigan. She won multiple awards in residency including the SMFM (Society of Maternal-Fetal Medicine) award for excellence in Obstetric care, the SASGOG (Society of Academic Specialists in General Obstetrics and Gynecology) award, best Intern in her class, and multiple
CREOG achievement awards. She was also active in scholarly activities during her residency and led various initiatives for system-wide changes in the hospital. Her work was accepted in leading scientific journals and multiple research forums across the country including ACOG annual district and national meeting.

Dr. Qadri is a certified Da Vinci robotic surgeon in addition to being highly trained in all forms of minimally invasive gynecologic surgery (including vaginal reconstructive surgery) and looks forward to using her skills for the betterment of her patients.

Dr. Qadri is multi-lingual and speaks Kashmiri, Urdu, Hindi, and English. She is proud of her diverse background and looks forward to working for the natives of the Inland empire.

With more than 10 years of experience, Rodolfo Rey, MD, has the expertise patients need to stay healthy. At Magnolia OB/GYN Clinic, he's proud to offer expert care to women throughout the Inland Empire at locations in Riverside, Perris, Lake Elsinore, and Moreno Valley, California.

Dr. Rey completed his medical degree at the University of California, San Diego, School of Medicine. He performed his obstetrics and gynecology residency at West Penn Hospital in Pittsburgh, Pennsylvania, a part of the Allegheny Health Network. He also received honors in Obstetrical Ultrasound in 2008. Dr. Rey is board-certified by the American Board of Obstetrics and Gynecology.

At Magnolia OB/GYN Clinic, Dr. Rey offers compassionate, comprehensive health care. He takes the time to get to know his patients and understand their concerns. Dr. Rey works tirelessly to help patients protect their health. He provides clear instructions, detailed answers, and ongoing support. 

Dr. Rey is proud to be a trusted women's health care provider that helps patients resolve their health concerns. Dr. Rey looks forward to providing OB/GYN services to the Inland Empire for years to come.

Janet Vadaparampil, MD, is committed to providing exceptional obstetrics and gynecological services. She has served many communities in California and is proud to bring her skills to the Inland Empire at Magnolia OB/GYN Clinic, working with patients throughout Riverside, Perris, Lake Elsinore, and Moreno Valley, California.

Dr. Vadaparampil, also known as Dr. Vada, completed her medical degree through the University of Medicine and Dentistry of New Jersey in Newark, New Jersey. She performed her obstetrics and gynecology residency at SUNY Downstate Medical Center in New York City. 

After moving to California, Dr. Vada worked with patients in underserved communities. She takes pride in caring for diverse groups of patients. Dr. Vada knows that top-quality women's health care can uplift families and communities. She strives to help patients protect their health and plan for healthy pregnancies. 

known for her exceptional bedside manner at Magnolia OB/GYN Clinic, Dr. Vada gets to know each patient and sets them at ease. Dr. Vada also works to help patients receive prompt medical care. She understands that many patients have trouble finding time for doctor visits. As a result, Dr. Vada ensures that her patients receive timely appointments with short wait times. 

A member of the American Congress of Obstetricians and Gynecologists, Dr. Vada strives to provide the best possible OB/GYN services to improve patients’ overall well-being.

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.

Dr. Marsh completed her undergraduate degree in Reproductive Health at the University of California, Berkeley. She earned a master’s degree in science studying Global Medicine at the University of Southern California and her medical degree at The Ohio State University College of Medicine. She later trained in obstetrics and gynecology at Cedars-Sinai Medical Center followed by subspecialty training in gynecologic oncology (chemotherapy, gynecologic cancer, and risk-reducing surgery) at the University of California, Los Angeles. Dr. Marsh is passionate about identifying patients at risk for hereditary cancer. Her innovative work has been presented at multiple national conferences and published in Obstetrics and Gynecology. Dr. Marsh is skilled in complex open and minimally invasive (robotic and conventional laparoscopic) surgery. Patients of Dr. Marsh appreciate her exceptional bedside manner, her incredible attention to detail, and her commitment to shared decision-making.