Meet Our Team

At KM Speech Therapy, our team is organized into distinct groups to ensure comprehensive and specialized care for each child:

Licensed Speech-Language Pathologists (SLPs)
Our core group of licensed bilingual speech-language pathologists (SLPs) conduct speech-language evaluations in the San Fernando Valley and Santa Clarita valley both in home and in clinic. Our team has experience treating and evaluating children ages 0-21 with various speech and language diagnoses. Our therapists have various trainings including: Natural Language Acquisition, Apraxia, Beckman Oral Motor Protocol, Myofunctional therapy, and Hanen- It Takes Two to Talk.

Speech-Language Pathology Assistants (SLPAs)
Our Speech-Language Pathology Assistants play a vital role in supporting licensed speech-language pathologists. They assist in delivering individualized child-led and play based therapeutic intervention services, by implementing treatment plans, and tracking client progress under the supervision of a licensed clinician. SLPAs help ensure that each child receives consistent and effective care tailored to their individual communication needs.

Child Development Therapists
Child Development Therapists at KM Speech Therapy hold a unique and essential role. They are more than a service provider — they are a partner, a coach, and often the first point of connection for families navigating early intervention. Their work blends direct child-centered support, family coaching, case management, and collaboration with other professionals. They provide individualized, play-based, and relationship-focused services that align with each child’s IFSP goals and each family’s priorities. Child Development Therapists at KM Speech Therapy support functional growth across all developmental domains while also empowering families.

Administrative Staff
Our Administrative Staff provides essential support that keeps our speech therapy and child development services running smoothly. From scheduling appointments and managing records to coordinating communication between families and clinicians, our team ensures a seamless experience for every client and their caregivers. Their organizational skills allow our therapists to focus on delivering high-quality care. Our administrative staff speaks English and Spanish.

Speech-Language Pathologists (SLPs)

  • Kristina Mellibosky

    Kristina Mellibosky, MS CCC-SLP #25112

    Clinic Director & Founder

    Kristina Mellibosky, MS CCC-SLP, is a proud Latina business owner and the founder of KM Speech Therapy LLC. As a bilingual speech-language pathologist, she is passionate about providing high-quality, individualized care to children and families in the San Fernando Valley and Santa Clarita Valley.

    Kristina earned her Master’s degree in Communication Disorders and Sciences from California State University, Northridge and brings extensive experience in early intervention population, Areas of expertise includce in childhood apraxia of speech, autism spectrum disorder, language disorders, and adult rehabilitation. She has trainings in areas of Natural Language Acquisition (NLA), Beckman Oral Motor, and Hanen’s It Takes Two to Talk. All approaches which support both communication, language growth, and strong family involvement.

    Beyond her professional work, Kristina is a proud mom of two toddler boys and an avid horseback riding enthusiast. She blends her clinical knowledge with compassion, cultural awareness, and a deep commitment to helping individuals find their voices.

  • Tamara Vandenbroucke Speech Pathologist

    Tamara Vandenbroucke

    MS CCC-SLP #38938

  • Dr. Marilyn Van Dyke Ph.D., Speech Language Pathologist

    Dr. Marilyn Van Dyke Ph.D.

    CCC-SLP # 14275

  • Melissa Ahamad Speech Therapist

    Melissa Ahamad

    MS CCC-SLP # 17933

  • Angela Petinelli MS CCC-SLP #15791

    Angela Petinelli

    MS CCC-SLP

  • Retty Jarvis MS CCC-SLP #15932

    Retty Jarvis

    MS CCC-SLP

  • Danielle Moreno MS CCC-SLP #10695

    Danielle Moreno

    MS CCC-SLP

Speech-Language Pathology Assistants (SLPAs)

  • Melissa Suazo SLP-A # 4977

    Melissa Suazo

    SLP-A #4977

  • Roxanne Villafuerte SLP-A # 5423

    Roxanne Villafuerte

    SLP-A #5423

  • Samantha Ochoa # 8457

    Samantha Ochoa

    SLP-A #8457

  • Anali Aguilar SLP-A #7188

    Anali Aguilar

    SLP-A #7188

  • Paulina Gaona, SLP-A #8977

    Paulina Gaona

    SLP-A #8977

  • Diana Lopez-Hernandez, SLP-A #7059

    Diana Lopez-Hernandez

    SLP-A #7059

  • Marisol Renteria SLP-A #7798

    Marisol Renteria

    SLP-A #7798

  • Karen Villalobos SLP-A #6098

    Karen Villalobos

    SLP-A #6098

  • Agnes Patton, SLP-A #210

    Agnes Patton

    SLP-A #210

  • Melissa Hernandez, SLP-A #8278

    Melissa Hernandez

    SLP-A #8278

Child Development Therapists

  • Michelle Wintermute-MS Child Development

    Child Development Program Director and Supervisor

    Michelle brings over 20 years of experience in early childhood education and intervention to her role as Child Development Director at KM Speech Therapy. She is passionate about supporting children and families through evidence-based, play-centered, and relationship-driven practices.

    Michelle holds a Master of Science in Child Development from the University of La Verne (4.0 GPA) and a Bachelor of Arts in Child Development with a minor in Psychology from California State University, Northridge. She is also a Certified Infant Massage Instructor and has advanced training in Greenspan’s Floortime Approach, Applied Behavior Analysis (ABA), and autism spectrum disorder specialization.

    Throughout her career, Michelle has served as a Child Development Specialist, college instructor, and consultant, working with infants, toddlers, and preschoolers with a wide range of developmental needs. She has trained and mentored child development therapists, collaborated with interdisciplinary teams, and created professional development workshops for educators, caregivers, and community partners. Her expertise spans developmental evaluations, parent coaching, social-emotional development, sensory processing, and inclusive early learning strategies.

    At KM Speech Therapy, Michelle leads the Child Development Services team with a focus on collaboration, family empowerment, and best practices. She is committed to ensuring that every child receives individualized, compassionate care that fosters growth across cognitive, social-emotional, language, and adaptive domains.

    When not teaching or mentoring, Michelle is a frequent presenter at early childhood conferences and parent education programs, sharing practical strategies to help families and professionals nurture children’s strengths and support their developmental journeys.

  • Holly Nichols, Child Development Therapist

    Holly Nichols

    Child Development Therapist

  • Nataly Monsalve, Child Development

    Nataly Monsalve

    Child Development Technician

  • Marilyn Villalobos, Child Development Therapist

    Marilyn Villalobos

    Child Development Therapist

Administrative Staff

  • Myrna Beltran, Office Administrator

    Myrna Beltran

    Office Administrator

    Our office administrator brings over 16 years of experience managing private practices, with a strong background in organization and client support. Fully bilingual in English and Spanish, she ensures that every family feels welcomed, understood, and cared for from the very first interaction.

    Known for her compassionate, friendly, and attentive nature, she is not only a skilled administrator but also someone who makes children and families feel at ease. Her ability to communicate effectively with both staff and clients helps keep our office running smoothly and warmly.

    She is dedicated, responsible, and truly the heart of our office—always ready to support families and our team with care and professionalism.