Dr. V. Ashok Rangnath joined Capital Women’s Care in 2006 after eight years of practice in Hagerstown, Maryland. Dr. Rangnath provides expert care in normal pregnancies, high-risk pregnancies, abnormal bleeding, contraception, abnormal Pap tests, and basic infertility to women in Rockville and Silver Spring, Maryland.

He is the former chairman of the Department of Obstetrics and Gynecology at Holy Cross Germantown Hospital in Germantown, Maryland.

Besides general OB/GYN care, Dr. Rangnath is the practice’s resident expert for pelvic floor dysfunction, pelvic floor prolapse, and urinary incontinence. In this role, Dr. Rangnath has considerable experience with the transvaginal tape procedure for treating stress urinary incontinence.

When it comes to surgery, Dr. Rangnath specializes in minimally-invasive surgery, including advanced laparoscopic surgery, advanced hysteroscopic surgery, and advanced vaginal surgery. In fact, he performs most surgeries using a minimally-invasive approach.

Dr. Rangnath earned his MD from the Six-Year Accelerated Honors Program in medical education at the University of Miami. He completed his residency at Georgetown University Hospital in Washington, DC and is board certified in obstetrics and gynecology.

Before coming to Capital Women’s Care, Dr. Rangnath served as the chairman of the Department of Obstetrics and Gynecology at Washington County Hospital in Hagerstown, Maryland. He also served on the Medical Executive Committee.

Outside of work, Dr. Rangnath enjoys spending time with his wife and two children.

A BillionToOne co-founder, Oguzhan believes that diagnostics can be made much more powerful, accurate, and affordable if they are engineered to be quantitative. Oguzhan helped develop our proprietary molecular counting platform. He has led the Company since its inception and raised more than $200M in funding including from venture capital funds and investors who previously invested in tech companies such as SpaceX, Box, Spotify, Palantir, Braintree, and biotech companies such as Counsyl, WebMD, and Omada Health.Oguzhan received his PhD from Stanford University, where his work was published on the Cover of Cell Systems. He graduated summa cum laude and Phi Beta Kappa from Princeton University with a bachelor’s in molecular biology and minors in physics, computer science, and applied mathematics.

Rachel Doyel is a board-certified, licensed genetic counselor with extensive clinical and industry experience in prenatal and reproductive genetics. She joined BillionToOne in January 2023. After beginning her career in clinical genetic counseling, Rachel transitioned to a medical science liaison role at Ariosa Diagnostics, where she supported education and implementation of the Harmony Prenatal Test, with an emphasis on equitable access to noninvasive prenatal testing for aneuploidy. She later expanded her expertise in women’s health at Sema4, providing educational and clinical support across a broad portfolio of reproductive molecular diagnostics. Rachel earned her master’s degree in medical and molecular genetics from Indiana University and is an active member of the Indiana Network of Genetic Counselors.