Dr. Nathan has practiced as a Licensed Psychologist in the Houston area for over 30 years. He earned a Bachelor of Arts with Honors in Psychology from Indiana University, a Master of Arts in Psychology from Loyola University Chicago and a Doctorate in Counseling Psychology from Texas A&M University. His internship was completed at the Michael E. DeBakey VA Medical Center in Houston, Texas with a focus in Medical Psychology, working with patients suffering from cancer, spinal cord injuries, traumatic brain injuries, strokes and kidney failure. After 6 years in a group practice, Dr. Nathan began his own practice working with an adult population focusing on adjustment issues related to multiple medical problems, providing neuropsychological assessments and pre-surgical evaluation for bariatric, pain management and fertility physicians. He continues to work in a traditional office setting and as a hospital consultant in medical/surgical and physical rehabilitation hospitals. Over the years his practice grew and in late 2021, he merged with the Recovery Ways Family of Programs. This transition was to further the mission of providing quality psychological services to the complex medical/rehabilitation patient in out-patient and hospital settings. Dr. Nathan provides Executive Level Consulting and is the Founding Partner and Executive Director of Stuart J. Nathan, Ph.D. and Associates.

Dr. West has been Licensed as a Psychologist and practiced in Houston since 1996. She trained at the California School of Professional Psychology, receiving her Doctorate in Clinical Psychology with a Health Emphasis. She completed her internship at the Houston Veterans Affairs Medical Center. Her practice focus has been primarily in the field of stroke rehabilitation, assisting individuals coping with chronic medical conditions or in the midst of a health crises. Dr. West also provides pre-surgical assessments related to medical procedures, such as bariatric surgery, infertility treatments, and neurostimulator implants.  Implementing psychology interventions in Acute Rehabilitation Hospitals as well as Long Term Care facilities has been an emphasis of Dr.West’s practice.  She has provided clinical training, supervision and onboarded multiple psychotherapist and psychologists for the practice, to work most effectively with specific treatment goals.

Dr. Callahan earned his Doctorate at Texas Tech University and has been practicing Psychology in Houston for over 35 years. He enjoys working with individuals, couples and families. Special areas of therapeutic focus include: anxiety disorders, depression, grief, couples counseling, dealing with disability, and chronic pain management. Dr. Callahan also provides psychological evaluations. Dr. Callahan works in various treatment settings, including out-patient and in-patient. Throughout his practice experience, Dr. Callahan’s theoretical orientation has been focused on cognitive-behavioral approaches to treatment.

Dr. Mazas earned his doctorate in clinical psychology with an emphasis on psychophysiology of the brain and decision-making at Indiana University, under the Richard Young Foundation Research Fellowship, in the Department of Psychological and Brain Science. He completed his internship at the VA San Antonio, focusing on psychological trauma, addictions, brain lesions, and neuropsychological measures among minorities. Caring, serving, understanding, and being there for veterans, impacted him when delivering psychological and neuropsychological interventions. Eliciting and affirming positive change among African Americans and Hispanics, helped Dr. Mazas understand the role of culture and social norms in human behaviors during his fellowship and faculty position at The University of Texas M. D. Anderson Cancer Center in Houston. He continues to treat patients with stroke, epilepsy, MS, trauma, addictions, cognitive impairments, Alzheimer’s, Parkinson’s disease, and other brain issues, among patients from all races and ethnicities, including Native Spanish speakers. Dr. Mazas’ approach to evaluation, assessment, and treatment are holistic and eclectic, using evidence-based techniques.

Dr. Thomas is a Licensed Psychologist who completed her Doctorate degree in Clinical Psychology at the University of Nebraska-Lincoln. Her pre-doctoral clinical internship at the Summit Psychological Associates in Akron, Ohio focused on outpatient forensic evaluation and treatment of individuals involved in the legal system. She was a Postdoctoral Fellow at the Baylor College of Medicine and the Menninger Clinic. In November 2015, she became a Staff Psychologist at the Houston Methodist Behavioral Health, where she worked in the outpatient program doing psychological assessments and individual, couples and group counseling. She took a break from her career in 2018 to raise her children but remained active in her profession through public speaking commitments. In 2023, Dr. Thomas returned to her profession, this time in private practice, helping her patients in restoring connection and joy in their lives by developing curiosity and awareness of whatever is limiting their optimal functioning.

Mr. Flores is a Licensed professional counselor in the state of Texas. He earned his Bachelor of Science in Psychology at the University of Texas at Austin, completed a Masters in Psychology at the prestigious Bilkent University, and acquired a Masters in Clinical Mental Health Counseling from Houston Christian University. He’s been actively involved in research ventures for over a decade. As Research Coordinator for the Developmental Behavior Genetics Lab at UT Austin. He participated in research focused upon genetics, hormones, and the expression of dangerous behavior in adolescents. As Research Affiliate with The Buss Lab for Evolutionary Psychology, he investigated behavioral mechanisms through an evolutionary lens. Jonathon engaged in cross-cultural research while living in Turkey and became the Head Graduate Research Investigator wherein his work explored facets of physical attraction and human mating behaviors. Jonathon was an elected board member for the Fort Bend Counseling Association. He’s provided counseling services to couples, families, adolescents, groups, and individuals. Clientele included victims of trauma, such as domestic violence or sexual assault. Therapeutic interventions were based in cognitive behavioral therapy.

Stephanie Claudio has practiced as a social worker for over 6 years. She was born and primarily raised in Houston and enjoys working alongside the community she calls home. Mrs. Claudio earned her Master’s in Social Work from the University of Texas Arlington and a Bachelor’s in Psychology from Palm Beach Atlantic University. She focuses on treating children, adolescents, young adults, and families using a multidisciplinary and holistic approach. Her approach includes using a strengths-based and individualistic model to best assess presenting problems and to align treatment plans to fit each client’s identified goals. To achieve this, Mrs. Claudio uses talk therapy, cognitive behavioral therapy, solutions-focused therapy, play therapy, behavior therapy, parent-child interaction therapy, and internal family systems with a trauma-informed lens. She has utilized these tools while working within the foster care and adoption system and in private practice. Her passion lies within the realm of learning how to navigate neurodiversity differences.

Ms. Estrada completed a bachelor’s degree in psychology from Texas A&M University-Corpus Christi and a master’s degree in counseling from the University of Houston. Ms. Estrada has over 10 years of experience in the mental health field. She began her career as a field clinician for a mobile crisis unit in the Houston area where she worked with a wide range of challenges including anxiety and depression, suicide prevention, homelessness, substance abuse, domestic violence, PTSD, grief, and psychosis. Her other clinical experience includes working with athletes and improving sports performance, in psychiatric hospitals across Texas, crisis intervention and field work, private practice, and shelters for unaccompanied minors and the homeless. She uses Cognitive Behavioral Therapy (CBT) to help adolescents and adults overcome unhealthy thinking and behaviors to live more balanced and fulfilled lives.

Ms. Hall has practiced as a social worker for over 10 years in the Houston area. She earned her Master’s in Social Work from Alabama A&M University and a BSW from Miles College. She utilizes a holistic approach with sensitivity to multi-cultural issues. Her expertise includes motivational interviewing, screening, counseling, inpatient and outpatient substance abuse counseling, didactic speaking, 12-step programs for sobriety, dual diagnosis and mental health intervention with adolescents, adults, and geriatric populations. Ms. Hall works part-time at Texas Children’s Hospital where she provides focused patient/family counseling and psychosocial assessments. She utilizes her skills to conceptualize the psychosocial needs presented to intervene with patient/family behavior, coordinate community resources, and handle crisis/complex psychosocial situations.

Angela Paola Martinez is a bilingual (Spanish–English) Licensed Psychological Associate with more than 25 years of experience providing compassionate, evidence-based mental health care to children, adolescents, adults, couples, and families. She offers therapy in Spanish and English, with a special focus on serving the Spanish-speaking community in Houston and Sugar Land.

Angela holds a Master of Science in Clinical Psychology and specializes in cognitive-behavioral therapy (CBT) for anxiety, depression, trauma, life transitions, relationship concerns, and stress management. She is known for creating a warm, respectful, and culturally sensitive therapeutic environment where clients feel heard, understood, and empowered.

In addition to psychotherapy, Angela has extensive experience conducting psychological evaluations, including immigration evaluations (VAWA, U Visa, asylum, and extreme hardship cases). She has also worked extensively with individuals and families navigating complex emotional, cultural, and adjustment-related challenges.

Before relocating to the United States, Angela practiced and taught clinical psychology in Colombia, where she served as a university professor and clinical supervisor for over a decade. She is also a published researcher and author, bringing depth, insight, and academic rigor to her clinical work.

Angela provides individual, couples, and family therapy and is passionate about helping clients build resilience, strengthen relationships, and achieve meaningful, lasting change.

Servicios disponibles en español. Angela con orgullo ofrece terapia psicológica en español en Houston, apoyando a personas y familias que buscan atención de salud mental culturalmente competente y de alta calidad.