Advanced Practice Providers

Mechele Magpusao Wu, MS, ANP-BC. 

Urology Surgery Nurse Practitioner

650-725-4996

Lori Guelman, RN, MSN, FNP, AANP

Urology Surgery Nurse Practitioner

650-723-5546

Lillian Shiiba, PA-C

Urologic Oncology Surgical Physician’s Assistant

650-725-5544

Nancy Quinn, NP

Urologic Oncology Nurse Practitioner

650-725-5544

Cathy Costaglio, Pediatric NP

Pediatric Nurse Practitioner

650-725-5530

Sarah Oppenheim, Pediatric NP

Pediatric Nurse Practitioner 

650-725-5530

Susan Pike, NP

Pediatric Nurse Practitioner

650-725-5530

Mala Sivapalasignam, RNP

Pediatric Registered Practical Nurse

650-725-5530


Why Choose An APP as your Healthcare Provider?

NPs are advanced practice nurses who provide high-quality healthcare services similar to those of a doctor. NPs diagnose, order appropriate labs and diagnostic tests, and manage and treat a wide range of health problems. They have a unique approach and stress both care and cure. Besides clinical care, NPs focus on health promotion, disease prevention, health education and counseling. They help patients make wise health and lifestyle choices. They are truly your Partners in Health.

How long have NPs been providing health care?

NPs have provided excellent health care for more than 42 years. The first NPs were educated at the University of Colorado in 1965.

How are NPs educated?

NPs have graduate, advanced education and clinical training beyond their registered nurse preparation. Most have master’s degrees and many have doctorates.

What services do NPs provide?

From treating illness to advising patients on maintaining a healthy lifestyle, NPs provide a full range of services. Patients who see NPs report an extremely high level of satisfaction with the care they receive. Among the many services that NPs provide, they:

  • Order, perform and interpret diagnostic tests such as lab work and x-rays
  • Diagnose and treat acute and chronic conditions such as diabetes, high blood pressure, infections and injuries
  • Prescribe medications and other treatments
  • Manage patients' overall care and spending time counseling patients