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Dr. Alberto Luna is a Licensed Psychologist specializing in psychological and neuropsychological evaluations for children, adolescents, and adults. Originally from the Bronx and proudly of Dominican heritage, Dr. Luna brings both clinical expertise and lived understanding to the people and communities he serves.
Many of Dr. Luna’s clients have spent years feeling misunderstood, overlooked, or exhausted from trying to navigate life without clear answers. His work focuses on helping individuals better understand how their minds work through thoughtful, evidence-based evaluations that provide clarity, validation, and a path forward.
Dr. Luna specializes in ADHD, autism, cognitive, neuropsychological, and traumatic brain injury evaluations, including highly specialized medico-legal assessments. His approach is collaborative, thorough, and designed to produce clear, meaningful results that support real-world decisions and long-term growth.
He earned his bachelor’s degree from Lafayette College and his doctorate from the University of Arizona. His experience spans hospitals, schools, agencies, and private practice settings across behavioral health and neuropsychology.
At the core of his work is a simple belief: people deserve to feel understood, supported, and equipped with clear answers they can trust.
Ivan Luna is the Director of Partnerships & Growth at ADHDoctor, where he leads strategic growth initiatives focused on developing new partnerships, expanding referral networks, and strengthening key business relationships that support the organization’s long-term expansion. With nearly 20 years of experience in sales leadership, business development, strategic account management, and operational collaboration, Ivan brings a relationship-driven approach centered around identifying growth opportunities, building trusted partnerships, and driving measurable business results.
Leveraging an extensive background managing multi-million-dollar portfolios, negotiating complex agreements, and leading executive-level relationships, Ivan applies his enterprise sales and business development experience to help position ADHDoctor for scalable growth within the behavioral health and telehealth space. His expertise in market expansion, consultative relationship management, and cross-functional collaboration allows him to connect operational strategy with sustainable business development initiatives that increase access to specialized telehealth evaluation services.
Prior to joining ADHDoctor, Ivan held senior leadership and enterprise sales roles with Charter Communications, Lightpath, and T-Mobile, where he consistently exceeded revenue targets, managed complex strategic accounts, and supported market growth efforts across regional and national markets. At ADHDoctor, his focus remains on cultivating long-term partnerships, expanding referral relationships, and creating strategic opportunities that support the organization’s continued growth and patient reach.
Originally from Colombia, Diana Ortega plays a central role in supporting the day-to-day operations and patient experience at ADHDoctor. She works closely with the clinical team to help coordinate evaluations, scheduling, intake processes, and operational workflows that keep the practice running smoothly and efficiently.
Known for her compassionate and organized approach, Diana helps create a welcoming and supportive environment for patients and families navigating the evaluation process. Her work supports both the clinical and operational sides of the practice, helping ensure that each individual feels informed, comfortable, and supported throughout their experience with ADHDoctor.
Diana’s ability to balance patient support, communication, and operational coordination has made her an important part of ADHDoctor’s continued growth and commitment to high-quality care.
Katelyn Rabago, PsyD, MS, is a behavioral health clinician with training and experience supporting individuals navigating a wide range of emotional, psychological, and behavioral challenges. Her work focuses on helping individuals better understand themselves, build effective coping strategies, and work toward meaningful personal growth and wellness.
Dr. Rabago’s clinical background includes experience working with children, adolescents, adults, couples, and families across behavioral health settings. Her areas of experience include anxiety, depression, trauma, grief, behavioral concerns, life transitions, relationship difficulties, and emotional regulation.
In addition to counseling and behavioral health services, Dr. Rabago has experience supporting behavioral assessment and treatment implementation through collaborative, patient-centered care. She values creating a supportive and compassionate environment where individuals feel heard, respected, and empowered throughout the clinical process.
At ADHDoctor, Dr. Rabago contributes to patient care through clinical support, behavioral health services, and collaborative evaluation-focused work that supports individualized and evidence-based care.
Juliana Czar is a Psychological Technician at ADHDoctor with a strong academic and clinical foundation in psychology and behavioral health. She earned her Bachelor of Arts in Psychology from the University of Colorado Boulder and is currently pursuing her Master’s degree in Clinical Mental Health Counseling at the University of Colorado Denver, with plans to become a Licensed Professional Counselor (LPC).
Her clinical experience includes working with children with autism as well as participating in research focused on bipolar disorder in emerging adults. Juliana has a strong interest in neuropsychological assessment and the role psychometric data plays in understanding cognitive and emotional functioning.
At ADHDoctor, Juliana supports the evaluation process through testing administration, patient interaction, and clinical support activities that contribute to accurate, thoughtful, and individualized assessments. She is passionate about helping ensure patients feel supported throughout the evaluation process while contributing to high-quality, evidence-based care.
Noah Rice is a Psychological Technician at ADHDoctor and an undergraduate psychology student at Colorado Christian University, where he is completing his bachelor’s degree in Psychology. He plans to continue his education by pursuing a master’s degree with a focus on psychological testing and research.
Noah brings experience in crisis support, behavioral communication, and patient-centered interaction through his work as a Volunteer Crisis Counselor with Crisis Text Line. His training includes crisis intervention, active listening, de-escalation strategies, and the use of strength-based communication approaches to support individuals during difficult moments.
In addition to his behavioral health interests, Noah has developed strong organizational, customer service, and leadership skills through prior supervisory and team-based roles. At ADHDoctor, he supports the evaluation process through patient interaction, operational support, and testing-related activities that contribute to a thoughtful and supportive clinical experience.
Noah is passionate about continuing to grow within the field of psychology while helping support compassionate, evidence-based care for individuals and families.
Melina Kehtar-Navaz is a PhD student in Counseling Psychology with clinical experience working with adolescents, adults, and families across both school and healthcare settings. Her training has focused on supporting individuals from diverse backgrounds through thoughtful, culturally responsive, and evidence-based care.
Her professional interests include health service psychology, culturally responsive practice, and perinatal mental health. Melina is passionate about creating supportive environments where individuals feel understood, respected, and empowered throughout the clinical process.
At ADHDoctor, Melina contributes to the practice through clinical support and patient-centered care, helping foster a thoughtful and compassionate experience for individuals navigating evaluations and behavioral health services.
Outside of her academic and clinical work, Melina enjoys reading, weightlifting, snowboarding, and spending time with her doodle.

Years of Experience



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