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Dumrong Tangchitnob, MD is an OB/GYN and cosmetic specialist at Tangchitnob MD in West Covina, California, who has been improving women’s health for more than 30 years. Specializing in minimally invasive gynecologic and robotic surgery, he is a dedicated practitioner aimed at providing excellent care to women using the most advanced treatment options available.

Dr. Tangchitnob received his medical degree from Chulalongkorn University in Bangkok, Thailand. He remained in Bangkok to complete his internship at Bhumibol Adulyadej Hospital. He then traveled to the United States to complete his pediatric and OB/GYN residency and neonatology fellowship at Jersey City Medical Center in Jersey City, New Jersey.

He is a board-certified OB/GYN and is a fellow of the American Academy of Cosmetic Surgery. Dr. Tangchitnob is also very involved in the Citrus Valley Health Foundation, serving on their board of trustees.

To better serve his diverse community, Dr. Tangchitnob speaks a number of languages including Thai, Chinese, and Spanish.

Dr. Tangchitnob combines warmth and compassion with modern medicine to improve both comfort and care for his patients.

Dr. Tangchitnob is married with two grown children. He and his son, Dr. Edward Tangchitnob, work together at Tangchitnob MD, while his daughter is an attending physician specializing in geriatrics at Kaiser Permanente.

Edward Tangchitnob, MD, MBA, FACOG, FACS is a robotic surgeon and regenerative medicine physician specializing in minimally invasive and holistic treatments for chronic diseases associated with aging. Dr. Tangchitnob’s private practice is located in West Covina, CA.

Dr. Tangchitnob performs robotic procedures for women to help treat abnormal uterine bleeding, pelvic pain, infertility, and urogynecological symptoms that occur after childbirth. After graduating from his robotic surgery and advanced endoscopic fellowship at Scripps Clinic in San Diego, CA he was recruited by Emanate Health to serve as the medical director for the developing Minimally Invasive Gynecology Surgery (MIGS) division.

In 2013, he helped secure the Center of Excellence in Minimally Invasive Gynecology (COEMIG) designation for Emanate Health. In 2016, he later led the Center of Excellence in Robotic Surgery (COERS) designation for general surgery, oncology and urology. He has served as a consultant and board advisor for several pharmaceutical and biomedical companies including Abbvie, Allergan Medtronic, Smith and Nephew, and Cooper Surgical. In 2017 he founded Timeless Health MD which focuses on holistic treatments for aging such as bioidentical hormone replacement therapy, intimacy procedures, and aesthetics medicine.

In 2021 he became one of the first gynecologic surgeons nationwide to become certified in the surgical subspecialty of Minimally Invasive Gynecologic Surgery (MIGS) by the American Board of Obstetricians and Gynecologists.

Dr. Tangchitnob earned his medical degree at Tufts University in 2008 after graduating with a B.S. in electrical and biomedical engineering at Tufts University in 2004. He served as the Executive Chief Resident during his OB/GYN residency at Cedars Sinai Medical Center. He is an active member of the American College of Surgeons (FACS) and the American Association of Gynecological Laparoscopists (AAGL). He works closely with hospital executives to build surgical and medical programs and holds an MBA from the USC Marshall School of Business.

Dr. Clark has a passion for healing and for improved patient outcomes. 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

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. 

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 growing family.

Dr. Alija Ali offers a full range of rejuvenating services at Alija Aesthetics, Weight Loss & Anti-Aging in Whittier, California. Whether Dr. Ali’s patients want to diminish wrinkles, lose weight, begin hormone replacement therapy, consider a Vampire procedure, or regain sexual vitality, they can count on his expertise to guide their decisions and rely on his reputation for performing procedures that exceed expectations.

Dr. Ali received his Doctor of Osteopathic Medicine degree from Des Moines University College of Osteopathic Medicine. He completed his internship at USC and residency at UCLA and the Kaiser Foundation. He’s a member of the American Osteopathic Association and currently an internist affiliated with Whittier Hospital Medical Center, in Whittier, California.

For more than 20 years, his practice has been dedicated to treating the whole person and promoting wellness and self-confidence. By combining medical training as an internist, with specialization in weight loss and anti-aging, Dr. Ali hopes to help each patient achieve their desired appearance, maintain a healthy body, and to realize their dream of a long vibrant life.

Nerissa C. Safie, MD, FACOG is a board-certified obstetrician and gynecologist with a special interest in keeping women healthy and strong through every stage of life, including pregnancy and menopause. She has been in private practice since 2011.

Dr. Safie received her bachelor of science degree in chemistry from California State University in San Bernardino graduated Suma Cam Laude. She earned her MD from Harvard University in Boston, in 2000. She completed her residency training in obstetrics and gynecology at Cedars-Sinai Medical Center in Los Angeles.

She’s a Fellow of the American College of Obstetrics and Gynecology and a member of the American Medical Association. Dr. Safie has been a natural leader from a young age, having competed in the Model U.N. and become president of the Minority Association of Pre-Health Students while at Cal State.

A lover of dance and music, Dr. Safie choreographed comical dances for her fellow medical students that were highlighted in a second-year med-school showcase. Donates her hair to Locks of love. She received the Patients’ Choice Award from vitals.com in 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, and 2018.  Compassionate Doctor Recognition award from vitals.com in 2009, 2010, 2011, 2012, 2013, 2014, 2015, and 2018

She speaks English and Tagalog fluently and also speaks some Spanish.

Joan Hazel Calinisan, MD, FACOG is an award-winning, board-certified OB/GYN who is passionate about helping women achieve and maintain optimal reproductive health at Trinity Women’s Health in Murrieta, California. She has a special interest in minimally invasive gynecologic surgery and a keen interest in the latest reproductive technologies, anti-aging and menopausal health.

A graduate of the Biomedical Sciences Accelerated Program at the University of California at Riverside, where she earned her bachelor of science degree, Dr. Calinisan has an ongoing commitment to excellence in education. She achieved her MD with honors at the University of California at Los Angeles in 1997.

She then went on to postgraduate training in obstetrics and gynecology at Loma Linda University Medical Center in California. She’s received specialized training in pelvic floor repair, and laparoscopic hysterectomy.

Dr. Calinisan belongs to many professional organizations, including the American College of Obstetrics and Gynecology, the American College of Gynecologic Laparoscopists, and the American Medical Association. She is currently Clinical Professor in OB/GYN at Western University Medical School in Pomona, California, Touro University in Vallejo, California

and medical student mentor for UCLA. She is also a consultant and proctor at Cooper Surgical, Myriad Genetics and Viacord.  Dr. Calinisan has held leadership positions including Chair of OB/GYN and Chief of Staff at Loma Linda Medical Center, Murrieta, California

She received the Patients’ Choice Award from vitals.com in 2010, 2011 and 2018. In 2010, Dr. Calinisan was named Top OB/GYN Inland Empire by IE Family Magazine. She speaks English, Spanish, and Tagalog.

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.

Rashida N'gouamba, MD is is a board certified physician practicing Obstetrics and Gynecology since 2006. She started practicing in Pasadena California since moving from New York City, where she was an assistant professor at Columbia University Medical Center. An alumni of New York University and Yale School of Medicine, she was won multiple teaching awards throughout her career and is a strong advocate for breastfeeding. Committed to superior medical care in a patient friendly environment, her practice offers a wide range of gynecologic care. She is proficient in Spanish and French. Her areas of interests include pediatric gynecology, adolescent gynecology, minimally invasive gynecologic procedures and sexual dysfunction.

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.