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Mental Health & Autism Services in Maui, HI
Galler Rimm Behavioral Health Services has provided comprehensive psychiatry, developmental/behavioral pediatrics, and ABA therapy services to Maui residents since 2002. Our team of board-certified professionals, including Dr. Michael Rimm and Dr. Gabrielle Galler-Rimm, combines 55+ years of collective experience to deliver personalized, evidence-based care for children, adults, and families. We specialize in treating autism spectrum disorders, mood disorders, and behavioral challenges through a collaborative approach integrating psychiatric evaluation, behavioral analysis, and therapeutic interventions.

Our Maui-based practice emphasizes community engagement, family involvement, and individualized treatment planning to address each patient's unique needs. With locations in Makawao and Wailea, we offer both office-based and home/community-based services across the island. Our commitment to innovation is demonstrated through advanced treatments like PrTMS and a focus on reducing medication dependence while improving quality of life. We maintain affiliations with the University of Hawaii John A. Burns School of Medicine and adhere to strict clinical standards through our board-certified professionals.
Services
Child Psychiatry ABA Therapy Autism Diagnosis Mental Health Counseling Family Therapy Behavioral Pediatrics PrTMS Treatment Parent Training Social Skills Training Adult Psychiatry
Highlights and features
  • Our team includes Hawaii's only Developmental and Behavioral Pediatrician
  • 30+ years combined experience treating complex psychiatric and developmental conditions
  • Integrated approach combining psychiatry, ABA therapy, and behavioral pediatrics
  • Proven success reducing medication dependence through personalized treatment plans
  • Community-based services across Maui with home visit availability
What people say
Reduced medications Personalized care approach Helped understand life Extremely professional Improved quality of life
Services
Child Psychiatry
Specialized psychiatric care for children and adolescents combining evidence-based therapies with medication management when appropriate. Our board-certified child psychiatrists address behavioral issues, mood disorders, and developmental challenges through comprehensive evaluations and individualized treatment plans. Services include diagnostic assessments, family therapy sessions, and coordination with educational institutions to support optimal patient outcomes.
ABA Therapy
Board-certified behavior analysts deliver tailored Applied Behavior Analysis programs for autism spectrum disorders using proven methodologies like Discrete Trial Training and Pivotal Response Treatment. Our strength-based approach focuses on skill development in natural environments while providing parent education and community integration support to promote long-term independence and social success.
Autism Diagnosis
Comprehensive diagnostic evaluations for autism spectrum disorders conducted by Hawaii's only Developmental and Behavioral Pediatrician. Our multidisciplinary assessment process includes clinical observations, developmental screenings, and family interviews to provide accurate diagnoses and create targeted intervention plans that address each child's unique needs and strengths.
Mental Health Counseling
Individual and family counseling services addressing anxiety, depression, and other mental health conditions across the lifespan. Our licensed therapists employ cognitive-behavioral techniques, trauma-informed care, and evidence-based interventions to help patients develop coping strategies, improve emotional regulation, and enhance overall well-being through both office and home-based treatment options.
PrTMS Treatment
Non-invasive, drug-free treatment using FDA-approved Personalized Repetitive Transcranial Magnetic Stimulation for depression and other mood disorders. This advanced neurotherapeutic approach targets specific brain regions to improve symptoms with minimal side effects, offering an effective alternative for patients who haven't responded to traditional treatments or medication regimens.
People
Gabrielle Galler-Rimm
Developmental Behavioral Pediatrics Pediatrician
Board-certified Developmental and Behavioral Pediatrician with 25+ years experience diagnosing and treating psychiatric, behavioral, and developmental disorders. Fellow of the American Academy of Pediatrics and sole specialist of her field on Maui.
Michael Rimm
Child Adolescent Adult Psychiatrist
30-year experienced psychiatrist specializing in treating mood disorders, anxiety, and behavioral challenges across the lifespan. Clinical Assistant Professor at University of Hawaii and former Clinical Director of Maui Family Guidance Center.
Holly Feldmann
Board Certified Behavior Analyst
MS-level BCBA with 10+ years experience implementing ABA programs for autism spectrum disorders. Focuses on promoting independent living skills through evidence-based interventions tailored to each individual's needs and strengths.
Genna Joyce
Board Certified Behavior Analyst
Licensed BCBA specializing in neurodiverse-affirming ABA practices. Creates supportive environments for skill development and positive behavior change while emphasizing comfort, safety, and understanding for autistic children.
Questions
What mental health services do you offer for adults?
We provide comprehensive psychiatric care, individual therapy, and PrTMS treatment for depression and mood disorders. Our services include medication management, cognitive-behavioral therapy, and evidence-based interventions tailored to adult patients' specific needs.
How do you approach autism treatment for children?
Our ABA programs combine Discrete Trial Training, Pivotal Response Treatment, and Natural Environment Training. We create individualized plans with parent education components and community-based interventions to develop social, communication, and independent living skills.
Do you accept insurance for behavioral health services?
We recommend contacting our office directly for current insurance verification information. Our administrative team can help explain coverage details and payment options for psychiatry, ABA therapy, and counseling services.
What makes your practice different from other mental health providers?
We uniquely integrate psychiatry, ABA therapy, and developmental pediatrics under one practice. Our collaborative approach combines medication management with behavioral interventions and family support to address complex needs across multiple specialties.
Are home-based therapy services available?
Yes, we offer home and community-based ABA therapy and behavioral interventions. Our mobile services allow treatment in natural environments to better support skill generalization and family involvement in the therapeutic process.
How can I schedule an initial consultation?
Complete our online appointment request form or call (808) 572-4500. Our team will contact you to discuss your needs and schedule a comprehensive evaluation with the appropriate specialist.
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Reviews (4)
Alexandra W.
Jul 26, 2021 Report
Dr. Rimm has been my therapist for many years. I had several other therapists before I began treatment with him. But it has been his methods that have improved my life, helping me to understand and heal my trauma. He doesn't candy-coat things or necessarily "hold my hand." But he helps me to see myself for who I am (when I couldn't) and to see and build upon my strengths. He helped me to understand and overcome the family dynamics that propelled me to some seriously dark places. He is very community-driven, teaching that we can't get better by ourselves. I had to
Tracey Leigh Souza
Jun 03, 2021 Report
My son is 11 yrs old and have seen Dr Gabrielle for his autism and ADHD a couple times just before the pandemic hit. Recently I been trying to get him an appointment to see her again, especially because we were in the process of getting him an ABA. We never got to that point due to the pandemic. So I tried to get him in since he has been suicidal. They turned him away, saying they were full and not taking new patients. Ummm he was already a patient. In My situation I would expect them to find time for him. Her assistant, Jessica was really rude saying "Don't you understand what full means?" yes
David Suga
Jun 01, 2021 Report
There are many similarities in previous postings and had I reviewed them my time with Dr Rimm would have ended much sooner. Oh my! He does love to share with you his accomplishments and the technique's he's learned over the years and then your session is over. After my session's I would go over what Dr Rimm discussed we me. I was amazed others shared the same thoughts. It's more a Dr Rimm me session. He gets paid and his clients/patient's get to make another appointment to listen to Dr Rimm talk about his knowledge and his success. During one of my session's I had to ask him to quit talking.
Meis F.
Sep 08, 2019 Report
Purposefully mean and vindictive! Im so appalled at what my daughter is telling me about her therapy sessions. Shes been crying all afternoon. Ill never allow her to go back. Dont let your children go to therapy alone!