The Ohlone Student Health Center is staffed by a group of dedicated professionals who are committed to promoting student health and wellness. We are a tight-knit family who take care of each other and are here to do the same for the Ohlone campus population.

Staff Title Email Phone
Catherine Hayes Director/Family Nurse Practitioner chayes@ohlone.edu 510.659.6258
Janet Lopez Office Manager/Front Desk jquijas@ohlone.edu 510.659.6258
Jessica Lopez Medical Assistant jlopez@ohlone.edu 510.659.6258
Rosemary O'Neill Mental Health Counselor roneill@ohlone.edu 510.659.6258
Sang Leng Trieu Project Director strieu@ohlone.edu 510.659.6258

About Our Staff

Catherine Hayes, BSN, MPH, FNP

Catherine Hayes is the new director of Student Health at Ohlone College, a community college located in Fremont, CA. Catherine studied nursing at Georgetown University School of Nursing and Health Sciences before serving as a commissioned officer in the United States Navy Nurse Corps for seven years. In 2010 upon completion of her Masters of Public Health at the Johns Hopkins Bloomberg School of Public Health she accepted a position with the Non-Governmental Organization Doctors Without Borders, and completed emergency humanitarian missions in Sudan, Democratic Republic of Congo, Central African Republic, Syria, and Haiti. In 2014 she relocated to Boston, MA where she worked with the non-profit organization Boston Healthcare for the Homeless Program. She completed her Masters of Nursing at Boston College in 2017. Catherine’s professional interests include health equity and health education. At Ohlone College she hopes to expand mental health services, sexual and reproductive health services, and preventative care.

Rosemary O’Neill, MA, MFT

Rosemary is a Licensed Marriage, Family Therapist, and Professional Certified Life Coach (PCC). Rosemary developed this program and is now in her 9th year at Ohlone College, providing support and services to students, faculty and staff. Rosemary has a breadth of experience working with and supporting students, who want to embark on a positive course of personal discovery, overcome blocks to achievement, realize goals and successfully navigate transitions and change. If everything is going great, students may want to see Rosemary for Life Coaching, to help you stay on your course of action and plan for future success.

Janet Quijas

Janet has been the Office Manager at Ohlone College Student Health Center since 1998. As the first contact for most students who walk through the door, she is responsible for ensuring that our operations run smoothly and students are able to been seen for health care services in a timely manner. Janet was part of the first graduating class of Evergreen Valley College in San Jose where she majored in Speech Pathology. She enjoys working at Ohlone and witnessing the growth of students, especially as they matriculate to 4 year universities and pursue their career goals. Janet is the proud mother of 5 children, several of whom attended Ohlone College, and an even prouder grandmother of five.

Jessica Lopez

Jessica Lopez is a Medical Assistant / Birthcontrol counselor / HIV tester. She has been working at the Ohlone Student Health Center for eight years now. She also works at the front desk making appointments answering calls . Loves to Help Ohlone students and staff with any questions regarding the Health Center. Jessica received her Medical Assistant certificate with ABCi: American Business College International in 2003 . She received a Family Planning Basics Certificate with Center for Training in 2008. She also is a Mother has a twelve year old daughter named Monika .When Jessica is not working she is spending time with her family if it’s not at home it is on the soccer fields cheering her daughter on. she is also expecting a son on the way and is excited to add to her little family.

Sang Leng Trieu, DrPH

Sang is the Project Director for STEP Up Ohlone Mental Health Program where she oversees the planning, implementation, and evaluation of the program. She started her tenure at the Ohlone Student Health Center in 1999, and in the last 19 years has held several roles leading health education and research activities. Her work in institutions of higher education spans five campuses in Northern and Southern California, serving as faculty and in student affairs roles. She holds two graduate degrees (MPH, DrPH) in public health. Sang is a marathon runner and enjoys traveling, reading, and getting her daily dose of Coffee Bean and Tea Leaf.