Meet Our Team
The Faces Behind Compassionate Care
Our Leadership Team
-
Rachel Berthoumieux, BA, MS
FOUNDER/MANAGING DIRECTOR
After caring for her mother through more than a decade of dementia, Rachel created CogniHealth to offer the compassionate, consistent care she once struggled to find. With 20+ years of finance and operations leadership at institutions such as Columbia University and UC San Diego, she brings strong integrity, structure, and reliability to every aspect of care. Her leadership blends personal understanding with professional excellence to support families with dignity, empathy, and trust.
“I built CogniHealth so families would never feel as alone or overwhelmed as I once did.”
-
Arielle Etienne
DIRECTOR OF PEOPLE AND OPERATIONS
Arielle oversees CogniHealth’s human resources, marketing, and care operations, ensuring a seamless connection between team excellence and client experience. With a strong background in organizational development and service operations, Arielle dedicated to creating an environment where caregivers feel supported and clients receive compassionate, personalized care.
Known for a collaborative leadership style, Arielle focuses on nurturing a positive workplace culture, strengthening community outreach, and enhancing operational efficiency to help CogniHealth deliver care with integrity, empathy, and heart.
-
Sabine Noel, RN
CLIENT CARE MANAGER
Sabine has over 20 years of nursing experience and is dedicated to compassionate, person-centered care. She excels in patient advocacy, care coordination, and family communication, ensuring personalized, safe, and independent living at home. Fluent in English, French, and Spanish, she bridges cultural gaps to support diverse families in San Diego County. With experience in hospital and community care, she leads with empathy and professionalism, providing trusted, consistent care.“I’ve learned that great care starts with listening — to both the client and their family. Every story matters.”
-
Hana Nassiripour
CLIENT CARE & ADMINISTRATIVE COORDINATOR
Hana manages scheduling, client communications, and administrative workflows with a focus on responsiveness, empathy, and excellence.
She is often the first voice families hear when they reach out. She treats each call with the care and respect it deserves. Her ability to balance professionalism with genuine compassion ensures that every client and caregiver feels supported from the very first interaction.
-
Susselys Virgil, BA, MS, Lean Six Sigma
DIRECTOR OF FINANCIAL OPERATIONS
Susselys brings over 20 years of finance and operations leadership experience across higher education, healthcare, and nonprofit organizations. She holds both a Bachelor’s and Master’s degree in Accounting and has led teams in accounts receivable, cash operations, and compliance with a focus on integrity and service.
A CMA candidate and Lean Six Sigma Green Belt, Susselys blends strategic insight with collaboration and care. Fluent in English and Spanish, she helps ensure CogniHealth’s operations reflect transparency, trust, and compassion.
-
Kristina Mueller
IT SUPPORT SPECIALIST
Kristina oversees our internal systems from Google Workspace to scheduling and payroll platforms, ensuring smooth communication and secure operations across the agency.
She helps maintain our technological reliability so that caregivers and families can stay connected with confidence.
Our Advisors
-
Carolle Jean-Murat, MD
HEALTH & WELLNESS ADVISOR
Carolle Jean-Murat, M.D., CogniHealth’s Health & Wellness Advisor, supports healthy aging, dementia awareness, and caregiver education. With family health experience, she offers wellness tips that enhance CogniHealth’s home care services. Her guidance helps keep clients and their families safe and comfortable. Fluent in English, French, and Spanish, she brings a culturally sensitive approach to reach and support diverse families in San Diego County.
Her role supports our mission to provide compassionate, person-centered care that improves quality of life.
-
Ali R. Nassirpour, Esq.
STRATEGIC LEGAL ADVISOR & OUTSIDE PARTNER- FEDERAL COMPLIANCE
Ali R. Nassiripour, Esq, serves as a strategic legal advisor and outside partner to Cognihealth, providing guidance on federal compliance, immigration, and corporate governance matters that support the company’s mission of compassionate, high-quality home care services. With over two decades of experience in U.S. immigration and federal administrative practice, Mr. Nassiripour helps the company maintain strong ethical and regulatory standards while supporting its growth and workforce development goals.
Mr. Nassiripour speaks Farsi, French and Spanish
-
Megumi Sueda, MS, CRC
SOCIAL SERVICES ADVISOR
Ms. Sueda is a Certified Rehabilitation Counselor (CRC) with over 20 years of experience helping older adults and families navigate care transitions, dementia, and long-term support. Her background in geriatric social work and family advocacy enhances our mission to deliver compassionate, person-centered care. She ensures each care plan promotes dignity, emotional well-being, and engagement, addressing the whole person, not just their physical needs.
Ms. Sueda is fluent in English, Japanese, and Spanish.
-
Marie Lewis, BS, SHRM
CAREGIVER HR RELATIONS ADVISOR
As CogniHealth’s Caregiver HR Relations Advisor, Ms. Lewis provides guidance on caregiver engagement, communication, and workplace relations. With expertise in human resources and team development, she helps ensure every caregiver feels supported, respected, and heard.
Her insight strengthens CogniHealth’s commitment to creating a positive, inclusive work environment. one where caregivers can thrive, grow, and deliver exceptional care to every client.
Ms. Lewis is fluent in English and Haitian Creole
-
Marco Lezama, BA, Architect
COMMUNITY & BUSINESS RELATIONS ADVISOR
Mr. Lezama provides guidance on organizational growth, partnerships, and community engagement. With a background in business development and relationship management, he helps strengthen CogniHealth’s connections with families, healthcare professionals, and local organizations throughout San Diego County.
His insight supports both the agency’s long-term success and its mission to serve the community with compassion, professionalism, and integrity.
Mr. Lezama is fluent in English and Spanish.
-
Lorraine Hunte
HOME CARE MARKETING ADVISOR
Ms. Hunte, our Marketing Advisor, brings experience in healthcare marketing, community relations, and digital communications.
She guides CogniHealth’s outreach and brand strategy, ensuring our message of compassion and professionalism reaches the families who need us most.
Her insight helps us build lasting relationships across the San Diego community and beyond.
Our Caregivers
The Heart of CogniHealth
Our Caregivers
Our caregivers are the heart of Cognihealth. Each one is carefully screened, trained, and selected for their compassion, professionalism, and commitment to client well-being.
Whether providing dementia care, companionship, or daily living support, our caregivers go above and beyond to make every client feel valued, respected, and understood.
At Cognihealth, we invest in our caregivers through ongoing education, mentorship, and recognition because exceptional care begins with those who deliver it.
“Our caregivers don’t just provide assistance. They bring warmth, understanding, and reliability into every home.”.
Our Promise to You
We work as one team, caregivers, coordinators, and leadership with a shared promise to:
Deliver consistent, reliable care every day
Listen to families with empathy and respect
Continuously improve through training and quality feedback
Treat every client like our own loved one
At CogniHealth, teamwork is not just how we operate. It’s how we care.
