High Risk Pregnancy Center has been designated a Castle Connolly Center of Excellence for 2026, a distinction that recognizes healthcare practices providing an outstanding level of specialized, high-quality care. This builds on HRPC’s recognition as the #1 practice in Women’s Health in Nevada in 2024 and solidifies the center’s standing as a national leader in maternal-fetal medicine.
In addition, six HRPC physicians have been named 2026 Castle Connolly Top Doctors: Dr. Brian K. Iriye, Dr. Stephen M. Wold, Dr. Wilson H. Huang, Dr. Manijeh Kamyar, Dr. Roxanna M. Twedt, and Dr. Farzad Kamyar.
The Center of Excellence designation goes beyond recognizing individual physicians. It identifies practices that serve as destinations for superior care and specialized services in their field. HRPC is now featured prominently across Castle Connolly’s patient-facing platforms, which consumers nationwide use to identify top-tier healthcare providers.
Castle Connolly’s selection methodology is peer-driven and rigorous. Physicians are nominated by fellow licensed doctors and then evaluated by a physician-led research team on their professional qualifications, education, hospital and faculty appointments, research contributions, disciplinary history, and interpersonal skills. The Top Doctor designation is awarded to the top 7% of physicians in the United States, and no physician can pay for inclusion.
HRPC’s 2026 Castle Connolly Top Doctors
Dr. Brian K. Iriye, MD has been a Castle Connolly Top Doctor every year since 2011, making 2026 his sixteenth consecutive year of recognition. A nationally recognized leader in maternal-fetal medicine with over 25 years of experience, Dr. Iriye served as President of the Society for Maternal-Fetal Medicine (2019-2020) and currently serves as President of Hera Women’s Health. Under his leadership, HRPC became the first regional MFM practice to offer on-site diabetes clinics, on-staff genetic counselors, telemedicine services, and detailed first-trimester ultrasound for anomaly detection. HRPC’s strategic partnership with Samsung Healthcare further reflects Dr. Iriye’s commitment to bringing AI-powered ultrasound diagnostics to patients across Nevada.
Dr. Stephen M. Wold, MD, MPH has been a Castle Connolly Top Doctor every year since 2013, now in his fourteenth consecutive year of recognition. A board-certified MFM specialist with a Master of Public Health in Epidemiology from UC Berkeley, Dr. Wold has served as Chairman of the March of Dimes board. His approach to care prioritizes trust, encouragement, and one-on-one time with patients, ensuring that families navigating high-risk pregnancies feel supported and informed throughout the process.
Dr. Wilson H. Huang, MD has been a Castle Connolly Top Doctor every year since 2011, making 2026 his sixteenth consecutive year of recognition. A board-certified MFM specialist, Dr. Huang combines cutting-edge diagnostics with a collaborative, patient-centered approach. His commitment to staying current with the latest advances in high-risk pregnancy care and his emphasis on patient education and shared decision-making ensure that every family receives both the most advanced and the most personal care available.
Dr. Manijeh Kamyar, MD has been a Castle Connolly Top Doctor every year since 2021, now in her sixth consecutive year of recognition. She is known for her dedication to personalized counseling and her ability to translate complex medical information into clear, compassionate guidance. Dr. Kamyar’s consistent recognition by her peers reflects the trust she builds with the families she serves through some of their most challenging medical experiences.
Dr. Roxanna M. Twedt, MD has been a Castle Connolly Top Doctor every year since 2023, now in her fourth consecutive year of recognition. She brings both clinical expertise and personal experience with high-risk pregnancy to her practice. Trained at Magee-Womens Hospital at the University of Pittsburgh Medical Center, Dr. Twedt earned her medical degree from the University of Nevada School of Medicine. Her empathetic, patient-first approach and her commitment to guiding families through complex pregnancies continue to earn peer recognition.
Dr. Farzad Kamyar, MD, MBA has been a Castle Connolly Top Doctor every year since 2023, now in his fourth consecutive year of recognition. A board-certified psychiatrist and addiction medicine specialist, Dr. Farzad Kamyar directs HRPC’s MOTHER Program (Maternal Opioid Treatment Health Education and Recovery), providing psychiatric evaluations, medication management, and psychotherapy for pregnant and postpartum women navigating mental health and substance use challenges. His presence on this list highlights the growing recognition that integrated behavioral health is essential to comprehensive maternal-fetal care.
Nevada’s Leader in High-Risk Pregnancy Care
With six Castle Connolly Top Doctors, two of whom have held the designation for 16 consecutive years, and a Center of Excellence designation, HRPC continues to set the standard for maternal-fetal medicine in Nevada. The practice has served the state’s largest population centers for over two decades, offering comprehensive services including advanced 3D and 4D ultrasound imaging, first-trimester screening, genetic counseling, diabetes management, perinatal behavioral health services, and the MOTHER Program for opioid use disorder treatment.
HRPC’s recognition reflects what families and referring physicians throughout Nevada already know: when a pregnancy becomes complex, this is the team you want on your side.
To schedule an appointment, call 702-382-3200 or use our online appointment form.
HRPC Locations
Las Vegas – Central: 2011 Pinto Ln, Suite 200, Las Vegas, NV 89106
Las Vegas – Southwest: 9090 W Post Rd, Suite 100, Las Vegas, NV 89148
Henderson: 880 Seven Hills Dr, Suite 260, Henderson, NV 89052
Reno: 9780 S McCarran Blvd, Suite 1, Reno, NV 89523 | (775) 404-5000





