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Rady Children's Specialists



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


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

Madhu Alagiri, M.D., F.A.A.P., Professor of Surgery, UC San Diego

Leslie Hsieh, M.D., Medical Director, 2-B Dry Program

Sarah Marietti-Shepherd, M.D., Assistant Professor, UC San Diego

Kelly Swords, M.D., M.P.H., F.A.C.S., Assistant Professor, UC San Diego

Nurse Practitioners

Kristin Head, P.N.P.
Kristin Head is a board-certified pediatric nurse practitioner. She works in the 2-B Dry Program treating children with bladder and bowel dysfunction and is located at the satellite offices in Oceanside and Murrieta.

Kristin earned her Bachelor of Science in Nursing degree at Kent State University in Ohio and moved to San Diego where she worked as an R.N. at Rady Children’s for six years. She then earned her master’s degree at the University of San Diego and worked as a nurse practitioner in primary care for seven years prior to joining the Division of Urology.

In her spare time, Kristin enjoys reading, traveling and spending time with her family.

Bridget Miranda, F.N.P.
Bridget Miranda is a board-certified family nurse practitioner who specializes in pediatric care. She is also a faculty member at Azusa Pacific University in San Diego and is currently pursuing a doctoral degree.

Bridget is a member of the Pediatric Urology Nurses and Specialists Association (PUNS) and is dedicated to the care of pediatric urology patients at Rady Children’s.

She lives with her husband and children in San Diego, and her interests include trying new hobbies and enjoying the San Diego weather.

Nurse Clinical Care Coordinators

Alexandra Lee, R.N.
Alex Lee is a R.N. Clinical Care Coordinator in our Urology Clinic. Her clinical responsibilities include coordinating the patient flow and providing one-on-one care for postoperative patients. Alex works closely with the 2-B Dry patients to ensure that they and their families feel supported while in the clinic and at home, working toward their goals.

Alex earned her Bachelor of Science in Nursing in 2013 from California State University San Marcos. She enjoys working with pediatric patients, as she appreciates their sense of fun and willingness to learn.

When she’s not at work, Alex enjoys mountain biking and spending time with her husband, daughter and dog. She also loves going to Disneyland.

T-RechenTami Rechen, B.S.N., CURN
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.