Alta Bates IVF Program


This is our second round at IVF following the successful birth of our first daughter, now age 4. I have nothing but praise and admiration for the venerable Dr. Chetkowski and his staff, and consider ourselves fortunate to have such expertise available in the East Bay.

Call Us: 510-649-0440 or Schedule an Appointment Online

Richard Chetkowski, M.D., Barbara McSorley , Wendi Parodi, Maria Castillo, Marissa Viale, Vivian Marquez , Chris Herndon, M.D.

Assisted reproduction is a complex process, which requires a well-coordinated team to attain the best results. In the course of your evaluation and treatment you will have an opportunity to get to know each one of us on a personal basis. We welcome your questions and will do our best to solve any problems that may arise. We think of you as yet another member of the team working towards one common goal — your successful pregnancy. Patients visit us from Sacramento, San Francisco, the Bay Area, Berkeley, Oakland and close-by communities.


Vivian Marquez, L.V.N., has been at Alta Bates IVF for 12 years and in the medical field for 20 years. She finds helping people create families an inspiring and wonderful experience. Vivian is fluent in Spanish. She is involved in helping the Latino community understand how to make their family dreams come true.

Vivian Marquez & Wendi Parodi


Barbara McSorley is the Office Manager/Secretary in charge of scheduling initial and follow-up appointments, collection of information and office operations. Barbara has been with the program for over 26 years and has a wealth of information and experience which she can share with our diverse patients.

Barbara McSorley & Maria

Maria Castillo is the Financial Coordinator and has been with the program for over 25 years. Cost and financial considerations frequently play a major role in decision making about fertility treatments. She acts as a patient advocate to determine if insurance includes fertility coverage and how you can best utilize this coverage.


Marissa Viale, B.S., Laboratory Medical Technologist, has been part of our team for over 17 years.  She runs the hormone and andrology laboratories and performs moderate and high complexity diagnostic laboratory procedures. The andrology lab prepares fresh and frozen semen for artificial insemination (IUI), performs semen analyses including strict morphology and freezing of sperm. Close teamwork between the physician and the laboratory is crucial for the best treatment outcomes.

Marissa Viale


It’s All About Creating Families

"Patients are my partners. Together we have been making their dreams come true since 1984." ~Dr. Richard Chetkowski