About Us

About Nidraveda

We're focused on neurology and sleep medicine. Our specialists are fellowship trained so that it can be translated to a dedicated and comprehensive approach to your care. We are here for you. Patients first. 

Providing you with the best providers for the best care

Hanul S. Bhandari, MD

Dr. Bhandari is board certified in sleep medicine and neurology. He completed his fellowship training at Baylor College of Medicine. He started his journey by getting his undergraduate training in neurobiology and computer science at the University of Texas (UT) at Austin. He went on to attend medical school at UT Medical Branch and completed his residency training at UT Southwestern. Dr. Bhandari's primary goal is improving the quality of life for those suffering from debilitating conditions such as sleep disorders, epilepsy, chronic headaches, among other conditions. 

He has called San Antonio home for over 25 years. When he is not spending time practicing, he enjoys spending time with his wife, Darshana, his daughter, Vishnavie, and his family in addition to painting, traveling, and writing code. 

Bianca Lopez, DNP, APRN, AGPCNP-BC

Bianca is a dedicated and compassionate nurse practitioner. She completed her Bachelor of Science in Nursing degree at the University of Santo Tomas in the Philippines. With more than 7 years of nursing experience in medicine, telemetry, oncology and cardiothoracic surgery, Bianca has learned the importance of maintaining a patient’s quality of life and functioning. She also developed an interest in evidence-based practice and research when she pursued her Doctor of Nursing Practice degree with a specialty in Adult-Gerontology Primary Care at the University of Maryland Baltimore. She is a Josie King Patient Safety Award recipient, and a member of the Texas Nurse Practitioners, Sigma- Honor Society of Nursing and the American Association of Nurse Practitioners with specialty groups in Neurology and Pulmonary and Sleep Medicine. 

Combined with her nursing education, experience and values, Bianca is committed and determined into providing the best care for her patients at Nidraveda. 

Christina Vela, FNP, APRN, AGPCNP-BC

Christina is a caring and committed nurse practitioner. Born and raised in San Antonio Texas, she earned her Bachelors of Science in Nursing from Our Lady of the Lake University. While working as a nurse she continued with her education and pursued her Masters of Science degree with a specialty in Adult-Gerontology Primary Care at Walden University. With over 10 years of nursing experience, in primary care practice, mental health and home health care Christina has learned the skills needed to develop a trusting relationship with her patient’s. She is fluent in both English and Spanish. Christina is currently certified by the American Association of Nurse Practitioners. Christina looks forward and is excited to provide the best care possible to patients at Nidraveda!  

Ernest Hwang, DDS

Dr. Eojin "Ernest" Hwang was born in South Korea and raised in Texas. After getting his Bachelor in Biology at Baylor University in Waco, TX, he has received his DDS degree from UT Health Science Center in San Antonio. Dr. Hwang has been working as a general dentist for the past five years in San Antonio. He loves helping patients with TMJ, migraine, and sleep disorders. He now looks forward to further helping patients at Nidraveda with sleep appliances including MADs.


Dr. Hwang is blessed with a beautiful family of his wife and two children. When he isn’t working he enjoys traveling, attending Spurs games, and taking continuing education courses.