Marguerite Sanchez, Executive Director

Marguerite (Maggie) Sanchez is the new Executive Director for DWW-SBSM. She is a founding member and was the Secretary/Treasurer on the Board of Directors for the past 14 years. She has been the interim Executive Director, but felt her skills were best served by becoming the Executive Director and managing the day-to-day operations for the organization. Marguerite is currently semi-retired and is the financial analyst for the Natalie Orfalea Foundation. Marguerite was a Financial Analyst IV for the Santa Barbara County Court. Ms. Sanchez began her career as a staff accountant with Bartlett, Pringle, and Wolf. She enjoys traveling, cooking, and experimenting with homeopathic essential oils.

Dr. Alex Leasure, Medical Director

I was born in Jacksonville, FL and attended University of Central Florida in Orlando for my undergrad in biology. I later went through EMT training but never worked as an EMT, that was my first introduction to the medical field. I attended medical school at the University of Queensland in Brisbane, Australia. It was a unique program that formed from a partnership between the University of Queensland and Ochsner Health System in New Orleans. We did our first 2 years in Australia and our clinical rotations at a large hospital in New Orleans. After med school I completed a Family Medicine residency at the University of Florida in Gainesville. My professional interests include point of care ultrasound, suturing techniques, and infectious disease. Outside of work, I coach at a local crossfit gym, enjoy surfing, spearfishing, stand up paddling, rugby, cooking, fermentation, and cycling. I met my wife, Marie Claire Lamb, in med school while playing touch rugby. I proposed to her some years later, while surfing. She also works at Sansum as a primary care physician and volunteers with DWW. I have 2 hound dogs named Quincy and Fiona and they are both hilarious.

Dr. Chelsea Dean, Medical Director

A California native, Dr. Chelsea Dean is originally from Simi Valley, CA. Her education took her to University of California, Berkeley where she completed her B.A. in Molecular Cell Biology with a minor in Dance and Performance Studies. She received her M.D. from Ross University School of Medicine, graduating with high honors. Dr. Dean returned to California to complete her Internal Medicine Residency at Santa Barbara Cottage Hospital. She is ABIM Board Certified in Internal Medicine. Intentional about holistic care, Dr. Dean approaches medical problems with an open perspective and whole person mindset.

Dr. Dean’s passion for medicine originated in practicing with underserved populations. She grew up shadowing her Internist father on medical missions to Mexico and the Philippines. During medical school, Dr. Dean volunteered with Salybia Mission Project, bringing medical care to the local indigenous tribes on the island of Dominica. While in residency, she was a regular volunteer clinician with Doctor’s Without Walls. She currently works at the Santa Barbara Public Health Department Adult Clinic as a Primary Care Physician and HIV provider.

Dr. Dean lives in Santa Barbara with her husband and their pit-bull rescue, Reina. When not working, she is usually running along the beach or hiking in the beautiful mountains. She is always on the look out for the best taco in town, along with opportunities to practice her Spanish.

Jorie Nilson, Medical Director, Women’s Free Homeless Clinic

Jorie has been a Nurse Practitioner for the past 40 years. She obtained her BSRN from California State University, Fresno. Immediately after graduation in 1976, she entered an elite comprehensive Pediatric Nurse Practitioner certificate program. From 1978 to 1980, she practiced with the United States Peace Corps and with the United States Embassy in Bamako, Mali, and West Africa. Upon return to the U.S. in 1980, she earned her MSN with a Family Practice Nurse Practitioner Option in 1982. After that, she worked with the Teen Pregnancy Resource Center in Fresno serving high-risk teens ages 16 and under; the Birthing Center in Fresno, an out-of-hospital birthing facility; Central California Indian Health in Clovis, where she made health trips to the various Native American rural clinics; a weekly clinic in various locations in the San Joaquin Valley performing physical exams on the children of migrant farm workers; and briefly at Fresno Juvenile Hall.

In 1988, she moved from Fresno to Santa Barbara and worked as a Family Nurse Practitioner at UCSB Student Health until 2010. During summers, she also worked for Santa Barbara County in various clinics (Franklin, Carpinteria, Calle del Remedio), the Westside Neighborhood Clinic, and Santa Barbara Medical Foundation Clinic (now renamed Sansum Clinic).

After retiring in 2010, she took a year “off,” then began volunteering with Doctors Without Walls – Santa Barbara Street Medicine, primarily with the Women’s Free Homeless Clinic, but occasionally in both Pershing and Alameda Parks and on Street Rounds. A few years ago, she became the Medical Director of the Women’s Free Homeless Clinic. During retirement, she has also gone on medical missions to Malawi, Guatemala, and Honduras as well as travelled to Vietnam, Cambodia, and China with a group of medical people to study the various health care systems.

Oscar Delgadillo, Outreach Specialist

Oscar Delgadillo was born and raised in the mountains of Santa Barbara surrounded by nature and avocados. He graduated from UCSB in 2017 with a BS in Biopsychology and a minor in Applied Psychology. He has been blessed to be a part of DWW since November of 2019 starting as a volunteer with the Companion Care program. He assumed the Companion Care Coordinator role from 2020-2022. Under medical supervision, he led the COVID-19 vaccine efforts for DWW-SBSM. He will now transition into the Outreach Specialist role for 2022-2023. In 2021 he, along with Cathy Mollkoy, Lynn Matis, and Dr. Chelsea Dean, were presented with The Local Hero Award by SB Independent for their efforts in vaccinating people experiencing homelessness.

Lynn Matis, First Line Supervisor, LMFT

Lynn has volunteered with Doctors Without Walls since its founding in 2005 and is one of the longest volunteers. She is currently the First Line Supervisor and Facilitator, overseeing the Parks Clinics. She is also a member of the Vaccination Team and the Advisory Committee for the Board of Directors. Her additional work with the Street Outreach teams allows her the ability to use her career’s profession as a Licensed Counselor with a LMFT degree.

Lynn got her degree at Antioch University in Santa Barbara in 1990. A Sansum internship turned into a job. She learned of DWW and was inspired at a speaking event with one of the founders, Dr. Mimi Doohan and Jennifer Ferraez, a volunteer social worker with DWW.
Lynn is passionate about the DWW mission, but it’s her personal mission which drives her the most, which is to assist and encourage up and coming medical and public health professionals (UCSB students mostly) in deciding a humanitarian path in medical school. This passion also fulfills her love of working with other medical professionals, doctors, and nurses, in the field, helping those in our community who cannot help themselves. Lynn likes to travel (coming from a military upbringing) and enjoys visiting friends in Colorado. We are fortunate to have her with us.

Volunteer Coordinators

Isabel Rauchle
WFHC Coordinator

Isabel was born and raised in the San Francisco Bay Area and is a proud graduate of UC Santa Barbara Class of 2021 with a B.S. degree in Biopsychology. She has been with Doctors Without Walls since 2019, beginning as a packs volunteer at the Women’s Free Homeless Clinic. She will continue to serve as the WFHC Coordinator for the 2022-2023 cycle before applying to medical school. Isabel is drawn to DWW by her passion for learning and the opportunity to apply our knowledge directly to our community. It drives her to always see the person in the patient, provide compassionate care, and

advocate for those around us. She aims to remain a part of the DWW community as she works towards a career in medicine, hoping to return in the future to serve as a clinician.

Until then, she plans to continue the dedicated work of her predecessors and establish a strong community among the women and people of Santa Barbara. In her free time Isabel enjoys spending time with friends and family, traveling, snacking, and taking any opportunity to learn something new.

Ronnie Page Harley
WFHC Coordinator

Ronnie grew up in Berkeley, CA, and recently graduated from UC Santa Barbara with a degree in Biological Sciences. She has been volunteering with Doctors Without Walls since 2019 as a packs volunteer in the Women’s Clinic and a scribe in the Parks Clinic. She is grateful for the community connections she has established through DWW and feels lucky to get to know and learn from many of the unhoused residents of Santa Barbara. She is excited to get more involved in the community as a coordinator of the Women’s Free Homeless Clinic. Ronnie is pursuing a career as a family medicine doctor and plans to continue collaborating with underserved communities in the future. In her free time, she enjoys backpacking, playing soccer, playing the cello, snowboarding, and woodworking.

Albert Yang
Data Coordinator

Albert grew up in the San Francisco Bay Area and graduated from UC Santa Barbara in 2021 with a degree in Biopsychology and a minor in Applied Psychology. He has been with Doctors Without Walls since 2019 and has served with the Packs and Scribe teams. Doctors Without Walls has been an integral component of his understanding of the value of street medicine and has given him unique experience with meeting the underserved community where they are. In the future, Albert is planning on applying for medical school in hopes of becoming a physician to continue to work with underserved populations. In his spare time, Albert enjoys reading, cooking, and exercising.

Majd Bakdounes
Parks Coordinator

Majd graduated from UC Santa Barbara in June 2022 with a degree in Biological Sciences. He has been a part of Doctors Without Walls for two and a half years, serving in the scribe, packs, and vitals roles. Majd has enjoyed the friendships and connections formed with the local underserved population and fellow volunteers at DWW and is excited to lead parks clinics for the 2022-2023 year. He currently works for the Santa Barbara County Public Health Department as an EMT and aspires to work as a physician in the future. In his free time, he enjoys playing golf, cooking, training in martial arts, and watching Formula 1.

Jessica Weiss
Parks Coordinator

Jessica grew up in Los Angeles, California and graduated with honors from UCSB in 2019 with a degree in Biopsychology. She joined Doctors Without Walls in 2019, serving in many capacities; a WFHC volunteer, a packs volunteer and she was the 2021-2022 Volunteer Coordinator. Jessica has enjoyed forming friendships with the individuals living on the streets and deepening her passion for helping others. She currently works as the Lead Medical Assistant for a local Orthopedic Surgeon. She plans to become a Physician Assistant and continue working with underserved populations in the future. In her free time, she enjoys hiking, walking her dogs, and spending time with her loved ones. She is extremely excited to be a Parks Coordinator for the 2022-2023 cycle and and help DWW continue its mission of service and care.

Josephine Du
Volunteer Coordinator

Josephine originally grew up in Grand Rapids Michigan before moving to Orange County in 2010. During her time at UCSB, she studied Pharmacology and Biopsychology and earned a certificate in Medical Humanities. She originally joined DWW as a Vitals volunteer in 2019 and has since then cross-trained as a Scribe. She is excited to support DWW as the Volunteer Coordinator for the 2022-2023 term and is consistently inspired by the compassion that is characteristic of everyone in the organization. She is spending her gap year in Santa Barbara working as an emergency department technician and looks forward to continuing serving the Santa Barbara community. Outside of work, she enjoys fostering dogs, pottery, and taking care of house plants.

Robert Hinojos
Companion Care Coordinator


Robert was born and raised in the rural town of Tulare, California, and graduated with honors from UC Santa Barbara in 2022 with a B.S. in Biopsychology and Pharmacology. His initial exposure to health and socioeconomic inequities began from experiences in his hometown, which led him to work as a staff member at the Hedges House of Hope Shelter in Isla Vista. Robert then started volunteering as a Companion Care volunteer in 2021 to specifically focus on how to address health inequities present within the Santa Barbara community. He is now happy to be serving as Companion Care Coordinator for the 2022-2023 term and hopes to continue DWW’s long-standing mission to help those who are the most vulnerable, wherever they may be. As an aspiring physician, Robert intends on returning to his hometown to take a similar approach to address healthcare needs, although he has found a second home here in Santa Barbara. In his free time, he enjoys playing basketball, reading fiction, and writing short stories/poems.

Adamari Franco Campos
Companion Care Coordinator

Adamari is a fourth-year undergraduate student at UCSB working towards her degree in Biopsychology BS with a minor in Spanish. She is originally from Jalisco, Mexico, but has lived in the Bay Area most of her life where she had the honor to enter higher education to help her parents as a first-generation Latina. Adamari is very grateful for her opportunity to be a Companion Care volunteer for a year now, where she has grown personally and professionally. Growing up with limited healthcare and financial resources herself, she strives to work towards better healthcare access and experience for undocumented immigrants, low-income families and all other underserved communities. Adamari aspires to become an emergency room physician and help reduce the lack of Latinx representation in healthcare. In her free time, she enjoys exercising, hiking, and playing soccer. Her favorite music includes reggaeton, mariachi, and R&B.

Spencer Chau
Packs & Logistics Coordinator

Spencer is originally from the San Francisco Bay Area and graduated from UC Santa Barbara in 2020 with degrees in both Biopsychology and Asian American Studies. He found it difficult to leave sunny Santa Barbara and now works at a local dermatology office specializing in skin cancer. He started with Doctors Without Walls in 2019 with companion care and then cross-training into scribing and is now looking forward to serving as the Packs and Logistics Coordinator for the 22-23 cycle. Spencer is incredibly grateful for all the cherished friendships and knowledge gained during his time with DWW as he prepares for a career in medicine. He plans to continue to work with underserved populations in future, bringing care to those who need it most. In his free time, he enjoys traveling, learning new languages, cooking with friends and family, and appreciating each day as it comes.