Primary, Dental, and Behavioral Health

David Hayes, Chief Executive Officer

As Chief Executive Officer of Special Health Resources for Texas, David Hayes is committed to providing East Texans across 23 counties affordable healthcare for the whole family.  Through his leadership, SHR offers patients a full-range of services, including both adult and pediatric primary care, adult and pediatric dental care, women’s health services, immunizations and vaccinations, HIV/AIDS screening and treatment, mental health care, and substance use disorder services.

David came to SHR in 2013 as Human Resource Director, and in 2014 was hired as Chief Operations Officer/Chief Information Officer where he worked closely with the management team to develop and implement plans for the operational infrastructure of systems, processes, and personnel to accommodate the rapid growth objectives of the organization.  In 2019, he was selected as the Chief Executive Officer.  Prior to joining SHR, David held positions as the Director or Chief Officer in community health centers for over ten years.  He also held leadership roles at Genesis Primecare (a Federally Qualified Health Center), as well as having 30 years of experience in the retail merchandise and pharmaceutical industries.

David earned his Bachelor of Fine Arts in Music Education from Stephen F. Austin State University, and completed the UCLA/J&J Executive training program at the Anderson Graduate School of Management.  He holds a Professional Human Resources certification through the HR Certification Institute, and a Texas Teacher Certificate in Secondary Education.

In his free time, David enjoys photography and was solely responsible for creating and co-sponsoring a district photo contest for Children’s Miracle Network.



Amparo Mahler, Chief Operating Officer

Amparo has over 25 years of experience working with Federally Qualified Health Centers.   She has extensive experience and education via health care executive administration and leadership programs, including the UCLA School of Management and the UCSF Center for Health Professions. As a result of her dedication, experience, and education, she became the Chief Operating Officer for a large FQHC in Southern California. Under her leadership, the company grew from a $4 million to an $80 million annual enterprise.  In additional to her role as COO, Amparo has also provided healthcare consulting services to firms in Southern California for five years. 

Amparo joined Special Health Resources in East Texas as the COO in 2020. Under her direction, SHR serves more than 26,000 individuals annually at ten clinic locations, providing comprehensive health care services including HIV care, dental services, case management and support services, as well as behavioral health care.

As someone who maintains a constant awareness of trends and services, Amparo focuses on the development and implementation of new programs and services to better meet the needs of the community, keeping SHR ahead of the curve. She is well respected for her commitment to excellence and maximizing profitability and performance.  In 2009 she was honored with the Health Care Champions award from the San Diego Business Journal. She is certified in Human Resource Management through California State University San Marcos and was an invited participant in the North County Leadership Program, also hosted by California State University San Marcos. She has also obtained Lean Six-Sigma Green Belt certification from San Diego State University.

She is a member of the Tyler Executive Women’s Network. 

In her spare time, Amparo enjoys exploring and traveling the world. 

Kenneth M Kosowicz, Chief Financial Officer

Kenneth M. Kosowicz, CPA, MBA, serves as Chief Financial Officer of Special Health Resources for Texas. He joined the organization in 2019, and has more than 25 years of senior leadership experience within various healthcare organizations. As CFO, Mr. Kosowicz oversees all financial operations including corporate accounting, treasury management, revenue cycle, financial strategic planning, and analysis.

Mr. Kosowicz began his career with Ernst & Young. Before joining Special Health Resources for Texas, he served in various leadership roles with a diversity of healthcare settings including Community Hospital, Long-Term Acute Care Hospital (LTAC), home health, residential rehabilitation, behavioral health, allied health, and school programs. He is a member of the State CPA society and AICPA.

Mr. Kosowicz earned a Bachelor of Science degree in Environmental Conservation from the University of New Hampshire, and holds a Master’s of Business Administration in Finance from Southern New Hampshire University.

In his free time Mr. Kosowicz enjoys outdoor activities and time with the family.

Anita Scribner, MD, Chief Medical Officer

Anita Scribner spent her childhood in Wills Point, Texas, aside from one year in northern Italy as a foreign exchange student. She attended the University of Texas and received a BA in Anthropology and a Masters in Public Health from University of Texas Health Science Center - Houston. Anita completed her Medical Degree at University of Texas Health Science Center at San Antonio and went to Indiana University Medical Center in Indianapolis for Internal Medicine residency, followed by University of Texas Southwestern Medical Center for her fellowship in Infectious Diseases.

Anita joined Diagnostic Clinic of Longview in 1999 and has served continuously as an infectious diseases consultant at both Longview Regional Medical Center and Good Shepherd. She holds board certifications in both Internal Medicine and Infectious Diseases. She has been a physician at Special Health Resources since 2002 and now serves as Chief Medical Officer.

Anita married Ray Scribner in 1987 and they have seven children. Her hobbies include traveling, hiking, and bicycling. She has been a volunteer with Diakonia Compassionate Ministries in Kisumu, Kenya since 2005.

Paul Nix, Chief Information Officer

Paul Nix serves as the Chief Information Officer for Special Health Resources for Texas.  Before being named CIO in August of 2019, Paul was SHR’s IT Director.  Paul provides leadership for the day-to-day operations of IT, coordinating and managing the company’s network, information management, and ensuring a secure information technology environment throughout our administrative offices and clinics. He was recently quoted as saying, “I have the honor of guiding the technology infrastructure that supports SHR's corporate vision of affordable and top-level healthcare for everyone in our service areas”.


Angelica Guevara, Human Resource Director 

Angelica Guevara, Human Resources Director, has been with Special Health Resources since 2012. She started as the Human Resources Coordinator, and excelled in this position being promoted to Human Resources Manager in 2015. In 2020 she became Human Resources Director. With experience across all areas of Human Resources and expertise in employee training, Ms.  Guevara is seen as a talent maximizer within the organization, and finds pleasure in encouraging staff to excel in their professional careers.

Ms. Guevara attended La Salle University in Bogota, Colombia, where she found that she had a passion for Business Management, and that passion continued after she relocated to the United States.

Angelica is committed to spending time with her family. She is fluent in Spanish and enjoys helping the non-English speaking community. Angelica’s favorite quote is “Train people well enough so they can leave. Treat them well enough so they don’t have to” – Sir Richard Branson.


Ernesto Guevara, RN, Compliance & Performance Improvement Officer

Ernesto first joined Special Health Resources as a volunteer and later became a full-time Bilingual Case Manager in March of 2002. He has served as the Compliance & Performance Improvement Officer at SHR for Texas since September 2017.    Throughout the years, Ernesto has held a variety of positions at SHR, including Site Coordinator, Project Data Manager, Staff RN, Clinic Manager, and Quality Assurance Quality Improvement Manager.  He takes pride in working every day to improve the health and well-being of people living in East Texas and Southwest Arkansas. He has been an advocate for HIV services for over 20 years. He has also published and presented in National and Statewide conferences representing the organization.

Ernesto has an Associate's Degree from Kilgore College in Applied Sciences and was granted a Registered Nurse License in 2014. He is currently pursuing his Master’s of Science in Nursing from The University of Texas at Arlington, focusing on Nursing Administration.

In his free time, Ernesto enjoys spending time with his family, as well as volunteering in the community. Mr. Guevara has volunteered as an Interpreter/preparer for the IRS -VITA (Volunteer Income Tax Assistance) program, American Cancer Society “Relay for Life”, and the City of Longview National Volunteer Day.

Theresa Jones, Program Director  

Theresa Jones has been with Special Health Resources for fifteen years, and currently serves as Program Director for the Ryan White Prevention/Outreach and Substance Abuse Programs. She holds a Bachelor’s degree in Business Administration, and a Master’s degree in Healthcare Administration from LeTourneau University. Ms. Jones is a member of the American College of Healthcare Executives, and a member of the Northeast Texas Homeless Consortium. In her spare time, she enjoys spending time with her family, nature walks, motorcycle riding, and traveling.

Tammi Smith Kelly, RN, Director of Nursing

Tammi Smith Kelly has worked with Special Health Resources since 2008. Prior to becoming Director of Nursing, Tammi previously served as Lead LVN, Staff RN, Clinic Manager, and Supervisor of Nursing Services.

Tammi has an Associate Degree in Applied Science and became a licensed Registered Nurse in 2012. She is currently working towards a master’s degree in nursing at the University of Texas at Tyler. She has worked extensively in the Ryan White Program and Substance Abuse program, and is committed to ensuring that the agency’s clinics provide the highest level of care.

In her spare time, Tammi enjoys spending time with her family and traveling.