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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. 

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. 

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.

Nicolai Foong, M.D.

Nicolai Foong, M.D., is a highly trained obstetrics and gynecology (OB/GYN) specialist at his private practice in Alhambra and Arcadia, California. He and his team offer the full scope of women’s health services for women and girls ages 18 and older. 

They take a conservative, science- and evidence-based approach to care. Dr. Foong offers prenatal evaluations, labor and delivery, gynecological services, birth control, infertility treatments, menopause symptom relief, and medical weight reduction. 

Additional offerings include treatment for hormone imbalance and menstrual irregularities, sexually transmitted disease (STD) testing and treatment, first trimester medical and surgical abortions, and minimally invasive gynecological surgeries. 

The office of Nicolai Foong, M.D., includes a multilingual physician and multi-ethnic staff. Dr. Foong is fluent in Mandarin, Taiwanese, Cantonese, Indonesian, Malay, English, and Spanish. The team offers same-day walk-in appointments, and Dr. Foong gives obstetrics patients access to his personal cell phone a month before their due date in case of an emergency.

After office hours, all patients can contact him through his exchange. Patients receive a return phone call within 5 minutes.

Dr. Foong and his staff offer exceptional patient care for women in a comfortable environment. They welcome patients to the practice and look forward to caring for them. 

Call the office of Nicolai Foong, M.D., to schedule an appointment or book one online today.

Jamie Lin, MD, FACOG, is an OB/GYN who cares for patients at the Pacifica Health offices in the Hollywood and Chinatown neighborhoods of Los Angeles and in Monterey Park, California. She offers the full scope of women’s health services.

Dr. Lin graduated from the University of California, Irvine, where she was awarded the Regents Scholarship. She went on to earn her Doctor of Medicine from New York Medical College in Valhalla, New York. After medical school, Dr. Lin completed her OB/GYN residency at Long Island College Hospital, where she served as Administrative Chief Resident and received the Junior Resident Excellence in Surgical Skill Award.

She is a member of numerous professional societies, including the American Medical Association and the Medical Society of the State of New York. She’s a Fellow of the American College of Obstetricians and Gynecologists and is certified by the American Board of Obstetrics and Gynecology.

Dr. Lin offers prenatal care, pregnancy testing, gynecological services, annual exams, cervical cancer screening, sexually transmitted disease (STD) testing, and pelvic pain management. She also provides family planning, birth control, and intrauterine devices (IUDs) to her patients.

She speaks Mandarin, conversational Spanish, and English. Dr. Lin enjoys caring for all of her Pacifica Health patients and welcomes them to the practice.

Alfred Hong, MD, FACOG, is an OB/GYN serving patients at Pacifica Health’s offices in the East Hollywood and Chinatown neighborhoods of Los Angeles and in Monterey Park, California. He specializes in complete women’s health services.

Dr. Hong graduated from the University of California Los Angeles, where he was awarded the Regents Scholarship. He earned his master’s degree in applied physiology from the Rosalind Franklin University of Medicine and Science in North Chicago, Illinois, followed by his Doctor of Medicine Degree. After medical school, Dr. Hong completed an obstetrics/gynecology residency at the Keck School of Medicine of USC and LAC+USC Medical Center in Los Angeles.

He received numerous honors and awards, including the Gold Humanism Honor Society Award, the Leonard Tow 2006 Humanism in Medicine Award, and the Nurses Choice Award for Excellence by LAC+USC Medical Center Women & Children’s Hospital.

Dr. Hong is a Fellow of the American College of Obstetricians and Gynecologists and a diplomate of the American Board of Obstetrics and Gynecology. He has treatment expertise in prenatal care, pregnancy testing, gynecological services, and annual exams. Dr. Hong also provides cervical cancer screening, pelvic pain management, sexually transmitted disease (STD) testing, birth control, intrauterine devices (IUDs), and family planning

He speaks Korean, English, and Spanish. Dr. Hong welcomes his patients to Pacifica Health and enjoys helping them achieve optimal women’s wellness.

Ben Ha, MD, FACOG, is an OB/GYN at Pacifica Health who sees patients in the East Hollywood and Chinatown neighborhoods of Los Angeles and in Monterey Park, California, offices. He specializes in complete women’s health services

Dr. Ha graduated from the California Institute of Technology with a Bachelor of Science in electrical engineering. He went on to earn his medical degree from New York Medical College in Valhalla, New York. After medical school, Dr. Ha completed an OB/GYN residency at the State University of New York at Buffalo.

He is a member of numerous professional associations, including the Chinese American Medical Association of Southern California and the Asian American Medical Association. Dr. Ha is a Fellow of the American College of Obstetricians and Gynecologists and is certified by the American Board of Obstetrics and Gynecology.

His research interests include the possible association between hormonal contraception and postpartum weight retention. Dr. Ha’s treatment expertise includes pregnancy testing, gynecological services, prenatal care, and annual exams. He also specializes in sexually transmitted disease (STD) testing, cervical cancer screening, family planning, pelvic pain management, and birth control, including intrauterine devices (IUDs)

Dr. Ha speaks Mandarin, Cantonese, Vietnamese, and English. He is a compassionate physician who welcomes patients to Pacifica Health and looks forward to meeting their OB/GYN needs.

Nicolai Foong, M.D.

Nicolai Foong, M.D., is a highly trained obstetrics and gynecology (OB/GYN) specialist at his private practice in Alhambra and Arcadia, California. He and his team offer the full scope of women’s health services for women and girls ages 18 and older. 

They take a conservative, science- and evidence-based approach to care. Dr. Foong offers prenatal evaluations, labor and delivery, gynecological services, birth control, infertility treatments, menopause symptom relief, and medical weight reduction. 

Additional offerings include treatment for hormone imbalance and menstrual irregularities, sexually transmitted disease (STD) testing and treatment, first trimester medical and surgical abortions, and minimally invasive gynecological surgeries. 

The office of Nicolai Foong, M.D., includes a multilingual physician and multi-ethnic staff. Dr. Foong is fluent in Mandarin, Taiwanese, Cantonese, Indonesian, Malay, English, and Spanish. The team offers same-day walk-in appointments, and Dr. Foong gives obstetrics patients access to his personal cell phone a month before their due date in case of an emergency.

After office hours, all patients can contact him through his exchange. Patients receive a return phone call within 5 minutes.

Dr. Foong and his staff offer exceptional patient care for women in a comfortable environment. They welcome patients to the practice and look forward to caring for them. 

Call the office of Nicolai Foong, M.D., to schedule an appointment or book one online today.

John Paul Cardin Jr.., MD, is a primary care physician who treats adult patients, young and old, at his self-titled practice in Long Beach, California. Dr. Cardin is board-certified and specializes in general practice, women's health and geriatric medicine. He stays up to date with the latest medical advancements to maintain his advanced credentials. Dr. Cardin has been actively practicing medicine in the Long Beach area for over 35 years, and remains passionate about caring for patients and helping them achieve optimal health. Dr. Cardin takes the time to really listen to patients, understand their needs, and gain trust to provide the best possible medical solutions. This is demonstrated in his detailed, first patient appointments, in which he addresses all medical issues and possible treatments. For over 20 years, Dr. Cardin has maintained active privileges in good standing at Long Beach Memorial Medical Center. He provides the highest quality of care to patients with high blood pressure, diabetes, female health problems, asthma, allergies, migraines, and much more. Currently accepting new patients, Dr. Cardin can be reached by phone almost 24 hours a day, and also welcomes walk-in appointments. His staff is attentive, efficient, and provides reliable referrals to achieve maximum results for patients. Rather than focusing solely on treating an illness or disease, Dr. Cardin’s top priority is keeping his patients’ overall health in the best possible condition.

Ben Ha, MD, FACOG, is an OB/GYN at Pacifica Health who sees patients in the East Hollywood and Chinatown neighborhoods of Los Angeles and in Monterey Park, California, offices. He specializes in complete women’s health services

Dr. Ha graduated from the California Institute of Technology with a Bachelor of Science in electrical engineering. He went on to earn his medical degree from New York Medical College in Valhalla, New York. After medical school, Dr. Ha completed an OB/GYN residency at the State University of New York at Buffalo.

He is a member of numerous professional associations, including the Chinese American Medical Association of Southern California and the Asian American Medical Association. Dr. Ha is a Fellow of the American College of Obstetricians and Gynecologists and is certified by the American Board of Obstetrics and Gynecology.

His research interests include the possible association between hormonal contraception and postpartum weight retention. Dr. Ha’s treatment expertise includes pregnancy testing, gynecological services, prenatal care, and annual exams. He also specializes in sexually transmitted disease (STD) testing, cervical cancer screening, family planning, pelvic pain management, and birth control, including intrauterine devices (IUDs)

Dr. Ha speaks Mandarin, Cantonese, Vietnamese, and English. He is a compassionate physician who welcomes patients to Pacifica Health and looks forward to meeting their OB/GYN needs.

Alfred Hong, MD, FACOG, is an OB/GYN serving patients at Pacifica Health’s offices in the East Hollywood and Chinatown neighborhoods of Los Angeles and in Monterey Park, California. He specializes in complete women’s health services.

Dr. Hong graduated from the University of California Los Angeles, where he was awarded the Regents Scholarship. He earned his master’s degree in applied physiology from the Rosalind Franklin University of Medicine and Science in North Chicago, Illinois, followed by his Doctor of Medicine Degree. After medical school, Dr. Hong completed an obstetrics/gynecology residency at the Keck School of Medicine of USC and LAC+USC Medical Center in Los Angeles.

He received numerous honors and awards, including the Gold Humanism Honor Society Award, the Leonard Tow 2006 Humanism in Medicine Award, and the Nurses Choice Award for Excellence by LAC+USC Medical Center Women & Children’s Hospital.

Dr. Hong is a Fellow of the American College of Obstetricians and Gynecologists and a diplomate of the American Board of Obstetrics and Gynecology. He has treatment expertise in prenatal care, pregnancy testing, gynecological services, and annual exams. Dr. Hong also provides cervical cancer screening, pelvic pain management, sexually transmitted disease (STD) testing, birth control, intrauterine devices (IUDs), and family planning

He speaks Korean, English, and Spanish. Dr. Hong welcomes his patients to Pacifica Health and enjoys helping them achieve optimal women’s wellness.

Jamie Lin, MD, FACOG, is an OB/GYN who cares for patients at the Pacifica Health offices in the Hollywood and Chinatown neighborhoods of Los Angeles and in Monterey Park, California. She offers the full scope of women’s health services.

Dr. Lin graduated from the University of California, Irvine, where she was awarded the Regents Scholarship. She went on to earn her Doctor of Medicine from New York Medical College in Valhalla, New York. After medical school, Dr. Lin completed her OB/GYN residency at Long Island College Hospital, where she served as Administrative Chief Resident and received the Junior Resident Excellence in Surgical Skill Award.

She is a member of numerous professional societies, including the American Medical Association and the Medical Society of the State of New York. She’s a Fellow of the American College of Obstetricians and Gynecologists and is certified by the American Board of Obstetrics and Gynecology.

Dr. Lin offers prenatal care, pregnancy testing, gynecological services, annual exams, cervical cancer screening, sexually transmitted disease (STD) testing, and pelvic pain management. She also provides family planning, birth control, and intrauterine devices (IUDs) to her patients.

She speaks Mandarin, conversational Spanish, and English. Dr. Lin enjoys caring for all of her Pacifica Health patients and welcomes them to the practice.

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.

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 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.