Our Leadership

Carolina A. Bustamante

Executive Vice-President

• Carolina Armas Bustamante brings 8 years of marketing leadership from her role as Marketing Director and new Business Development at MCCI Medical Group. In her role, she was head liaison between all the MCCI locations/markets and worked tirelessly to develop a new call center department and efficient team environment for employees.
• In addition to her work as MCCI leadership, Carolina has a fondness for giving back. She is currently a member of the Executive Committee for Friends of St. Jude and American Diabetes Association Broward/Miami Chapter.
• She also was heavily involved with the creation and development of the Leadership Learning Center, a center that helps underprivileged kids continue their education from an early age. Carolina attended Georgetown University from 2006-2009 and graduated from University of Miami with a dual BA in Advertising and Studio Art as well as a minor in Marketing and a minor in French.
• She also received her MBA from the University of Miami in 2014.

Chai Assapimonwait

Chief Financial Officer

• University of Kentucky Alumni, graduated with Bachelors of Accounting
• Green Belt certified with Six Sigma
• Three years of Public Accounting Experience with Big Six Accounting Firm
• Nine years Chief Financial Officer role in multiple industries
• Fifteen years of Finance, Operations and Administration Key Leadership roles
• Two and a half years of Banking Operations (Merchant Services)
• Team leader on multiple mergers and acquisitions of health care providers, law firms as well as manufacturing and service companies
• CFO/Partner at Your Home Advantage
  • Healthcare Management Company dedicated to improving clinical and quality outcomes by bridging the gap between the physician’s office and the member’s home. 
  • Lead the Finance/Accounting operations, Operating member and Owner.
  • Responsible for creating the organization into a leader in Health Risk Assessment segment of healthcare resulted in a Strategic Acquisition by Humana.

Roger Machin

Chief Operation Officer

• Roger has held various executive and management positions for over 17 years. His responsibilities and influence extended throughout all areas of several organizations that included strategic planning, corporate management, product development, field marketing and operations. He promotes a culture of high performance and continuous improvement that values learning and an unwavering commitment to quality.
• As the COO for OpusCare (formerly Hospice Care of South Florida), Roger is highly integrated at all levels of management and operations. He oversees, directs and organizes all departments thus ensuring staff performance, departmental goals, establishing priorities and evaluating results. He facilitates progressive organizational change and development within our growing organization.
• He holds a Bachelor’s Degree from Florida International University and is an active volunteer with Emmaus Medical Mission, which has sponsored 43 medical missions throughout the world.

Julio H. Tamayo

Administrator & Chief Compliance Officer

• Dr. Tamayo has almost 30 years of clinical and healthcare management experience at different levels within all healthcare delivery systems. Starting in1987 as Assessment & Referral Director and Managed Care Liaison for free-standing psychiatric hospitals in this area.
• He then held several positions at West Gables Rehabilitation Hospital since 2002 as Director of Admissions, Case Management/ Utilization Review and Quality Management Department, as well as being The Joint Commission and CARF accreditation teams champion.
• Dr. Tamayo also held the Chief Compliance Officer & Risk Manager responsibility at Metropolitan Hospital of Miami before joining the Riviera team as Director of Clinical Management and Outcomes and later as Chief Corporate Compliance Officer / Director of Risk Management.
• He holds a Medical Doctor degree from UNIVERSIDAD CENTRAL DEL ESTE and a Health Care Risk Manager License from University of Florida.

Ninsy Baldor, MSW

Vice President of Palliative Care

• Ms. Baldor has over 11 years of clinical social work, case management, and marketing experience. She began in 2005 as a social worker for Pan American Hospital. Ms. Baldor was promoted to Lead Social Worker of the Social Work/Case management department and rehired by the new administration for Metropolitan Hospital of Miami. She also served as case manager at Memorial Hospital-Miramar.
• She was then part of the marketing team at West Gables Rehabilitation Hospital for 3 years where she served as Physician/Clinical Liaison.
• She earned her Master’s degree in Social Work from Florida International University in 2006.

Lily Milton

Vice President of Patient Advocacy

Nicolas Roque

Administrator & Corporate Compliance Officer

Zely Santos

Director of Talent Acquisitions

• Zely has over 25 years of healthcare management experience at different levels within healthcare delivery systems.
• She has worked for the University of Miami School of Medicine and Mt. Sinai Medical Center.
• Her most recent job was at West Gables Rehabilitation Hospital, where she had been employed since 1998. She started as Administrative Assistant to the CEO, Human Resources Assistant and for the last 9 years Admissions Director.
• She has a Bachelor’s in Business Administration from the University of Phoenix.

Gabriela Roque-Velasco

Director of Market Research and Development

Maria Oyarzabal

Director of Billing Services

• For over 26 years and since the inception of HCSF, Mrs. Oyarzabal has been managing and overseeing the operations of the billing department, encompassing medical coding, claims submissions, payment posting, AR follow-up, statistical reports, and reimbursement management. For several years, she also worked in our HR department as the HR Coordinator.
• She holds a degree in Business Administration and has strong managerial and business office skills, including critical thinking and the ability to produce and present detailed billing activity reports.  
• “It has been a privilege and a blessing for me to witness the agency’s commitment to provide our services to those patients and their families who are in need. I’m proud to say that we’re not just another healthcare program, we’re a group of members dedicated to provide quality of services - from our family to yours!”

Richard Cabezas, MSW

Director of Social Work

• Richard Cabezas attended Miami Dade College, University of Florida, Nova Southearstern University and Barry University. He is a Certified Grief and Bereavement Counselor and has an Associates Degree in Business Administration, a Bachelor's Degree in Psychology and a Master's Degree in Social Work.
• Mr. Cabezas has over 27 years of clinical social work and management experience. He began his career working in children and family services for the Miami-Dade County Public Schools, the Interface Youth Program in Gainesville, Florida, and the University of Miami's Mailman Center for Child Development. He developed his broad clinical and case management skills while working with children of varying exceptionalities which included physical, mental and emotional disorders and victims of domestic violence. These early experiences laid the foundation for his professional commitment to serving vulnerable populations and led him into the field of geriatric health care.
• Mr. Cabezas has worked for OpusCare (formerly Hospice Care of South Florida) since 1995. He served three years as a member of the Board of Directors and has held various positions and management responsibilities within the agency, which included Volunteer Coordinator, Bereavement Counselor, Clinical Social Worker and Director of Social Work. Mr. Cabezas assisted in developing and implementing the agency's policies and procedures, train and supervise staff members, and provided direct patient care and case management services to many of our patients and their families. He is currently Director of Social Work and works closely with our Community Outreach Program to assess and educate our clients and other health care providers on the benefits of hospice and palliative care.
• Mr. Cabezas maintains a private practice in medical case management specializing in end-of-life and grief counseling with an emphasis on Solution-Focused Brief Therapy. He was also an Officer and Vice President of Bluechip Consulting Strategies Corporation which advised emerging companies on employee assistance programs, personnel management and technology systems.

Javier Roque-Velasco

Director of Corporate Business Development and Strategic Alliances