Meet Our Staff
Sharon Adler, MD, MPH
is a clinical instructor at the CA STD/HIV Prevention Training Center. She received her medical degree at the Mount Sinai School of Medicine in New York and her Master of Public Health degree from the University of California at Berkeley. She completed the Family Practice Residency program at the University of California, San Francisco as well as the General Preventive Medicine/Public Health program run by the University of California, Berkeley/ University of California, San Francisco. She is board certified in Preventive Medicine/Public Health and has clinical experience working in community clinics, public health clinics, and indigent care free clinics in the San Francisco bay area as well as at the San Francisco STD City Clinic. In her current position Dr. Adler develops curricula, conducts and coordinates STD trainings with a focus on special populations including, Correctional, Indian Health Service, Pacific Island and Border Health providers.
Heidi M. Bauer, MD, MS, MPH
is the Chief of the STD Control Branch for the California Department of Public Health and Clinical Faculty for the California STD/HIV Prevention Training Center. She received her Master of Public Health and Master of Science in Health and Medical Sciences from the University of California at Berkeley and her Medical Doctorate from UCSF School of Medicine. She completed a residency in Preventive Medicine at UCSF and is board-certified by the American Board of Preventive Medicine. In her current position, she develops curricula and conducts clinical training, provides care for STD patients, and designs public health research and programs to reduce the burden of STDs in California.
Stephanie Cohen, MD, MPH
is the medical director of San Francisco City Clinic, the municipal STD clinic in San Francisco and an assistant professor at UCSF in the division of infectious diseases. She received her medical degree from Harvard Medical School and completed internal medicine residency and infectious diseases fellowship at the University of California, San Francisco. She completed a research fellowship in HIV prevention studies at the Center for AIDS Prevention Studies (CAPS) and has a masters in public health from the University of California, Berkeley. She provides HIV primary care at City Clinic and the VA medical center. Her research focuses on using implementation science to guide the translation of STD and HIV prevention research into clinical and public health practice. She is currently a protocol Co-Chair and site Co-Principal Investigator of The Demo Project, an NIH-funded research study assessing the delivery of pre-exposure prophylaxis (PrEP) in STD and community health clinics.
Renyea Colvin, MPH
is a Trainer/Technical Assistance Specialist at the California STD/HIV Prevention Training Center. She has several years of experience in STD/HIV prevention research, program development, and implementation for youth both domestically and overseas. Renyea has provided training and technical assistance to agencies nationwide on multiple federally-developed tools and resources. She implemented a variety of youth development, wellness, and disease prevention programs to youth of all ages. She is a Certified Health Education Specialist has served as a health educator in governmental, school, and community settings. Renyea received her Masters of Public Health with a concentration in Health Promotion and Behavior from Georgia State University. She is a Certified Health Education Specialist and is committed to a prevention framework that is deeply rooted in social justice.
Linda Creegan, RN, MS, FNP
is a family nurse practitioner who received her Master of Science in Nursing and her FNP, in 1983 from Pace University in Westchester, NY. She has worked since as a clinician in the areas of STDs, women's health and HIV early intervention. She currently works as a clinician at City Clinic, San Francisco's categorical STD clinic, and for the California STD/HIV Prevention Training Center in Berkeley, as a presenter and as Clinical Nurse Liaison for the State of California STD Control Branch.
Linda DeSantis, M.Ed.
is a Program Manager with the CA STD/HIV Prevention Training Center. She has worked in STD/HIV prevention for over fourteen years in both community and public health settings. Linda conducts a variety of individual, group, and community-level interventions for community based organizations, local health departments and community planning groups. Linda is committed to enhancing prevention services by helping translate research into program implementation.
is the Director of the California STD/HIV Prevention Training Center (CA PTC), through the University of California, San Francisco (UCSF), and has directed the Center since 1994. She received her MPH degree in community health education from San Jose State University, and has worked in HIV, STD, hepatitis, and other public health and community programs for over 25 years. Funded by the Centers for Disease Control and Prevention (CDC), Alice oversees several CDC-funded national and international training and technical assistance programs, including those serving medical providers, public health workers, and health professionals from community based organizations. Alice and her CA PTC staff have also delivered STD/HIV training and technical assistance internationally in Africa, Asia, and the Pacific Island jurisdictions to assist with implementation of evidenced-based approaches to HIV and STD prevention and care.
Alice guides the CA PTC in the integration of community, provider, funder, and research agendas to improve STD/HIV prevention service delivery in practice settings. Her current focus is on integration of social determinants of health, structural- level interventions, and combination prevention approaches to improve HIV prevention outcomes. The CA PTC offers training and technical assistance in each of these areas to enhance current prevention efforts.
Miriam Garfinkel, MA, MFT
is the e-Learning Manager for the California STD/HIV Prevention Training Center. She is a licensed mental health professional and has a private practice in San Francisco. Miriam has worked in HIV since 1989 in a variety of settings and capacities. She was employed at the UCSF AIDS Health Project for many years. Her work there ranged from direct service to program management serving HIV positive clients with multiple diagnoses at San Francisco General Hospital. She became the manager for the AIDS Health Project Training Unit in the late 90's, supervising a team of trainers providing training and developing curriculum focused on HIV prevention. She was the lead developer on the first national Prevention with Positives training in San Francisco as part of a CDC-funded pilot program. Miriam began working with the PTC in 2007.
Chris Hall, MD
Chris was trained in infectious diseases at University of California San Francisco (UCSF), following internal medicine residency at Harvard's Brigham & Women's Hospital and medical school at Johns Hopkins. He received a Masters in Management from NYU's Wagner School of Public Service. Formerly, Chris was Policy Director for San Francisco's Health Initiatives for Youth, following work at the National Hemophilia Foundation in New York where he was the Director of Clinical Research. He began work in HIV in 1987 at the National AIDS Network, a group based in Washington, DC, dedicated to the organizational development of AIDS service organizations in the epidemic's early years. In addition to STD-related work, he has published in the areas of antiretroviral salvage therapy and HCV co-infection in marginally housed HIV-infected persons in San Francisco. He is adjunct assistant professor at UCSF, Medical Director of San Francisco Magnet center, and he provides primary HIV care at the East Bay AIDS Center in Berkeley and the VA Medical Center in San Francisco.
Wanda Jackson, BA
is a Partner and Program Support Service Trainer with the California STD/HIV Prevention Training Center. Wanda has an extensive background in the field of STD/HIV prevention. She has worked as a Disease Intervention Specialist, Public Health Investigator and Front line Supervisor. Wanda maintains her connection to frontline work by assisting local Disease Intervention Specialist in contacting, locating and interviewing clients to prevent the spread of STDs and HIV. Wanda is committed to providing quality skills-based partner and support services training to aid in intervening and preventing the spread of STD/HIV for healthcare professionals throughout the U.S.
Greg Mehlhaff, BS
is the Deputy Director of Systems Integration for the CA STD/HIV Prevention Training Center. In his 16 year tenure he has also coordinated the HIV PCRS Training Program, been the HIV/STD Liaison coordinating HIV/STD integration efforts at the CBO, local and state government levels. Prior to coming to the PTC he worked in the CBO setting in all areas of HIV prevention and care for 6 years, developing, implementing, evaluating and directing programs. Greg is committed to enhancing the skills of training participants which reflect the reality of their daily activities and of the people they serve. He maintains his connection to front-line work by providing HIV and STD prevention counseling and screening at a local bathhouse. Greg has worked extensively in South Africa and Uganda.
Ina Park, MD, MS
is the Medical Director of the California STD/HIV-Prevention Training Center and Chief of the Office of Medical and Scientific Affairs at the California Department of Public Health (CDPH) STD Control Branch. She received her Medical Degree from the University of California Los Angeles School of Medicine and her Masters of Science in Clinical Research at the University of Minnesota School of Public Health. She completed her residency in Family Medicine at Kaiser Permanente Los Angeles and a fellowship in Clinical Sexually Transmitted Diseases at CDPH and the University of California San Francisco. She is also an adjunct assistant professor at the UCSF in the department of Family and Community Medicine and provides clinical care and clinical teaching at San Francisco General Hospital.
Alberto Perez, BA
is a Trainer/TA Specialist for the Partner Services and Program Support section of the CA PTC. Alberto has over 15 years’ in the field of Public Health and has experience coordinating, developing curricula and facilitating Spanish & English-language trainings. He has been with the training center since 2000, and has served as a trainer for the California PCRS training unit, PCRS Area Manager and as a Bilingual Behavior Interventions trainer. He has also been published for his work in the development of Spanish language training for STD/HIV providers. Alberto remains committed to enhancing the essential knowledge, skills and abilities of training participants by providing interactive, skills-based trainings that create a solid foundation in Partner Services and disease intervention.
is a Trainer/Capacity Building Assistance Specialist at the California STD/HIV Prevention Training Center. Patrick began work in the field of STD/HIV in 1992 as the Project Coordinator of one of the AIDS Community Demonstration Projects, now an effective behavioral intervention known as Community PROMISE. Prior to that, he was a substance treatment counselor at a methadone treatment center. He has extensive experience working with high-risk populations including injection drug users, men who have sex with men who do not identify as gay, homeless youth and commercial sex workers. He has been involved with several national prevention efforts and research projects and has been published for his work with men who have sex with men who also inject drugs. Patrick has also served as the Training Coordinator of Comprehensive Risk Counseling and Services for the California State Office of AIDS.
is a Trainer/ Technical Assistance Specialist at the California STD/HIV Prevention Training Center. She earned a Masters of Public Health (MPH) degree from University of California, Berkeley. She has several years of experience in delivering, coordinating and evaluating social and public health services for marginalized groups including African-American and Latino populations, families living in poverty, foster youth, LGBTQI youth, and homeless population. Prior to joining PTC Melisa conducted community based research at a consulting firm managing program evaluations for various programs. She also has extensive experience in the field of youth development acting in various roles including program coordinator for an afterschool program, health educator at a community clinic and program manager for a youth leadership program. Melisa is committed to participatory, community-based frameworks to assess, design, and implement programs and advocacy efforts that in fact create meaningful behavioral and social change.
is a Trainer/Capacity Building Assistance Specialist at the California STD/HIV Prevention Training Center. Duran has worked extensively with low-income and disadvantage populations, helping to develop programs and coordinate services to reduce barriers which hinder a person’s ability to effectively access care and social services. Prior to joining the CA PTC, Duran worked for the Alameda County Public Health Department’s Office of AIDS Administration, for five years as a Ryan White Grant Administrator and served as the staff liaison to the Alameda County people living with HIV/AIDS (PLWH/A) committee. Duran is committed to enhancing training opportunities that will help to increase the understanding and skill set of those who serve individuals impacted by HIV/AIDS.
Denise Tafoya, MPA
is the Partner and Program Support Services Training Program Manager at the CA PTC. Denise has dedicated her professional career to the field of STD/HIV prevention for over 15 years. She has worked as a Disease Intervention Specialist, Front-line Supervisor and Program Manager. Denise is committed to offering and promoting quality partner and support services training for a comprehensive approach toward preventing and intervening in the spread of STDs and HIV.
Stacy Vogan, MPH, CHES
is the Evaluation Manager at the CA STD/HIV Prevention Training Center. She began her work with communities and public health in the field of HIV/AIDS in 1987. Stacy has developed and delivered numerous curricula and professional trainings in both domestic and international settings encompassing such topics as monitoring and evaluation, group facilitation, behavioral theories, and counseling, testing and referral. She has provided individual consulting with community based organizations and international agencies focusing her energies around building capacity in monitoring and evaluation, behavioral strategies, community development and social mobilization. Stacy approaches her work with a strong belief in developing sustainable practices and skills that build from the strengths inherent in an individual, agency and/or community. She has worked overseas in East Africa in both community development and HIV/AIDS prevention and care as well as domestically with Native American communities and Community Based Organizations among others. She has worked with the CA STD/HIV PTC since 1996.
Deborah Wyatt-O'Neal, RN, MSN, CNS
is a Trainer/Capacity Building Assistance Specialist at the California STD/HIV Prevention Training Center. She is a Registered Nurse who has been working in the field of HIV/AIDS for over 24 years. She has worked as a Register Nurse Educator at AETC, Clinic Director, and a Director of Client Services. She is committed to her community where she provides health education at a local transitional home for women and volunteers at Juvenile Hall. In her current position she helps develop curricula and conducts trainings.