Providers - CHOC Children's

CHOC Providers

Cantas Orsdemir, Sena – MD

Specialty: Endocrinology
Appointments: 714-456-7890

Dr. Sena Cantas Orsdemir is an endocrinologist who treats kids and teens in Orange County. She on staff at CHOC Children's.

O’Loughlin, Sarah J. MD

Specialty: Pediatrics

Dr. Sarah O'Loughlin is a board-certified pediatrician and sees patients at CHOC Children's Hospital in Orange.

Ohanian, Kirk L. MD

Specialty: Radiology
Appointments: 714-771-8360

Dr. Ohanian is board certified in radiology and treats kids and teens at CHOC Children's in Orange County.

Ohara-Hsu, Miwako MD

Specialties: Pediatrics, Internal Medicine
Office: 949-654-8963

Dr. Ohara-Hsu is board-certified in pediatrics and is a member of the CHOC Children’s Primary Care Network who treats kids and teens in Orange County.

Okada, Norichika A. MD

Specialty: Anesthesiology
Appointments: 714-560-1580

Dr. Okada is a board certified anesthesiologist who provides care for infants and children undergoing anesthesia at CHOC Children's.

Okawachi, David H. DDS

Specialty: Dentistry
Appointments: 714-635-1170

Dr. David Okawachi is a pediatric dentist who treats kids and teens in Orange County.

Olaya, Joffre E. MD

Specialty: Neurosurgery
Appointments: 714-509-7070

Dr. Joffre Olaya specializes in neurosurgery. He sees kids and teens at CHOC Children's Hospital in Orange and CHOC Children's at Mission Hospital.

Olaya, Windy A. MD

Specialty: Plastic Surgery
Appointments: 714-564-9225

Dr. Olaya is a board certified plastic surgeon who treats kids and adolescents. Dr. Olaya has privileges at CHOC Children's.

Omori, Keiichiro MD

Specialty: Pediatrics

Dr. Keiichiro Omori is a board-certified pediatrician and sees patients at CHOC Children's Hospital in Orange.

Ontiveros, Eric B. MD

Specialty: Anesthesiology
Appointments: 714-560-1580

Dr. Ontiveros is a board certified anesthesiologist who provides care for infants and children undergoing anesthesia at CHOC Children's.

Openshaw, Kurt L. MD

Specialties: Radiology, Vascular & Interventional Radiology
Appointments: 714-771-8171

Dr. Openshaw is board certified in radiology and vascular/interventional radiology at CHOC Children's in Orange.

Openshaw, Lori L. MD

Specialty: Pediatrics
Appointments: 949-951-5437

Dr. Openshaw is board-certified in pediatrics and is a member of the CHOC Children’s Primary Care Network who treats kids and teens in Orange County.

Ortiz, Clara L., M.D.

Specialty: Radiology
Appointments: 888-770-2462
Office: 714-509-9081

Dr. Clara Ortiz is board certified in pediatric radiology. Dr. Ortiz treats kids and teens at CHOC Children's in Orange County.

Otanez, Oscar MD

Specialty: Pathology
Appointments: 949-364-7710

Dr. Otanez is a board certified pediatric pathologist who identifies diseases in kids and adolescents at CHOC Children's.

Ounjian, Melinda MD

Specialty: Anesthesiology
Appointments: 949-600-7864

Dr. Ounjian is a board certified anesthesiologist who provides care for infants and children undergoing anesthesia at CHOC Children's.