Our team includes board-certified and board-eligible pediatric urologists and nurse practitioners.

Attending Physicians

George Chiang, M.D., Division Chief; Associate Professor of Surgery, UC San Diego

Madhu Alagiri, M.D., FAAP, Staff Urologist; Associate Professor of Surgery, UC San Diego

George Kaplan, M.D., Staff Urologist; Professor of Surgery, UC San Diego

Sarah Marietti-Shepherd, M.D., Staff Urologist; Clinical Instructor, UC San Diego

Nurse Practitioners

Ann Marie Finley, M.S.N., FNP

Quyen Nguyen, CPNP

Quyen H. Nguyen is a board-certified pediatric nurse practitioner in our Continence Clinic. In this role, she provides medical management for children with urinary incontinence, infection, frequency, urgency, enuresis, bedwetting and other urologic issues.

Along with performing urodynamics and electromyography uroflow testing, she provides biofeedback, pelvic physical therapy, and pelvic muscle rehabilitation.

Quyen received a Bachelor of Science in Nursing from the University of Minnesota and a Master of Science-Pediatric Nurse Practitioner degree from Arizona State University. In 2006, she joined our urology division.

Her hobbies include gardening, running at the beach, and sitting meditation with her husband. She also hosts stress-reduction sessions for youths and adults at her home.

Quyen speaks fluent Vietnamese.

Nurse Clinical Care Coordinators

Iris Lemke, R.N.

Iris Lemke is an RN Clinical Care Coordinator in our urology clinic. In this role, she meets with our patients post-operatively, addresses patient concerns and works closely with our physicians.

A registered nurse for 14 years, Iris has worked in various healthcare settings, spending most of her career working in the neonatal intensive care unit before transitioning to the outpatient setting.

A San Diego native, Iris graduated from Imperial Valley College in 2001.

When not at work, she enjoys spending time with her husband and three children. She can be seen cycling with her family along Mission Bay or heading up the coast for some scenic camping.

Tami Rechen, R.N.

Tami Rechen is an RN Clinical Care Coordinator in our urology clinic. Her clinical responsibilities include coordinating the patient flow for the urology clinic, providing one-on-one care for post-operative patients, developing and implementing protocols and plans of care for post-operative patients, CIC teaching, attending inpatient rounds with our urology team, working closely with the inpatient RNs to coordinate care for surgical patients, and coordinating care for the Kidney Stone Clinic.

A registered nurse at Rady Children’s for more than 20 years, Tami earned her Bachelor of Science in Nursing in 1993 from Saint Mary’s College/Samuel Merritt College of Nursing in Moraga, Calif.

Outside of the work setting, Tami enjoys hot yoga, paddle boarding, running, traveling, attending her son’s multiple sporting events and spending time with her husband.