Affiliated with Centura Health and Littleton Adventist Hospital

Call us: (720) 242-7533

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Meet Our Team

Dr. Meghan T. Lee, Clinical Neuropsychologist and Owner, Horizon Neuropsychological Services, Littleton, Colorado

Meghan T. Lee, Ph.D

Clinical Neuropsychologist, Director of Pediatric Neuropsychology, and Practice Owner

Click Here for Dr. Meghan T. Lee's Professional Bio

Dr. Meghan T. Lee earned her bachelor’s degree from Colorado State University and both her master’s and Ph.D. from Auburn University. She furthered her education in Neuropsychology through UC Berkeley Extension and Brigham Young University.

Dr. Lee completed her doctoral internship at Utah State Hospital and residency/fellowship at Children’s Neuropsychological Services in Boston, during which time she specialized in pediatric neuropsychology. Throughout her training and career, Dr. Lee has gained comprehensive experience in Neuropsychology across a variety of settings around the U.S., including hospitals (both acute and long-term care), private practices, correctional facilities, and university counseling centers. Although she has specialized in the pediatric population, Dr. Lee has also worked with the adult and geriatric populations across a variety of settings. Deciding to return home to Colorado, she initiated Horizon Neuropsychological Services to help children, youth, and young adults achieve new heights in their development. In sum, Dr. Lee’s breadth of experience throughout her clinical and educational work has led to a wide range of specialties and skills valuable in understanding the complexity of human behavior and development.
Dr-Molly-Sullan

Molly Sullan, Ph.D

Clinical Neuropsychologist and Director of Adult Neuropsychology

Click Here for Dr. Molly Sullan's Professional Bio

Dr. Molly Sullan earned her doctorate degree in clinical psychology, with a specialization in neuropsychology, from the University of Florida. She completed her pre-doctoral internship and her two-year neuropsychology fellowship at the VA San Diego Healthcare System/University of California, San Diego.

Dr. Sullan’s research has focused on understanding the relationship between post-traumatic sleep difficulties and cognitive, psychological, and physiological recovery for patients with a history of acquired brain injury (e.g., traumatic brain injury and stroke). Clinically, she has experience in the assessment of a broad spectrum of neurological disorders both in inpatient and outpatient settings, including brain tumors, epilepsy and movement disorders (e.g., Parkinson’s disease), memory disorders and dementia, stroke and cerebrovascular disease, traumatic brain injury, demyelinating lesions, autoimmune disorders, complex psychiatric concerns, substance use disorders, and neurodevelopmental considerations. She is passionate about working with her patients and their care teams to better understand the patient’s presenting concerns and to determine an effective course of action to address those concerns in their daily lives.

Dr. Sullan sees primarily adult and older adult patients.

Dr_Ramya_Rangamannar_headshot

Ramya Rangamannar, Psy.D

Clinical Neuropsychologist

Click Here for Dr. Ramya Rangamannar's Professional Bio

Dr. Ramya Rangamannar earned her bachelor’s degree from Barnard College at Columbia University and her master's and doctorate degrees in Clinical Psychology from the University of Hartford. She completed her pre-doctoral clinical internship at the University of Florida and post-doctoral fellowship in pediatric neuropsychology at the Children’s Hospital Colorado.

Over the last decade, Dr. Ramya has gained clinical expertise in a multitude of settings (i.e., medical, psychiatric, private practice) with children from early toddlerhood through early adulthood. Despite specialization in pediatrics, Dr. Ramya has also worked with adult and geriatric populations in her training. She prides herself on understanding the "whole child" in the context of their home/family, school, and social realms and in providing families with tangible resources and recommendations in supporting their child’s development and success.

Dr_Meghan_Lechuga_headshot

Meghan Lechuga, Psy.D

Clinical Neuropsychologist

Click Here for Dr. Meghan Lechuga's Professional Bio

Dr. Meghan Lechuga earned her doctoral degree with a concentration in neuropsychology from William James College. She completed her pre-doctoral internship at Staten Island University Hospital and her two-year postdoctoral fellowship in clinical neuropsychology at Columbia University Medical Center.

Dr. Lechuga’s clinical training has focused on the assessment of adults and older adults with a variety of neurological conditions, including diseases causing dementia, movement disorders, epilepsy, traumatic brain injury, stroke, brain cancer, and autoimmune disorders. She also has experience working with patients navigating the functional challenges associated with ADHD, learning disability, mood disorders, and complex medical conditions. She is dedicated to helping patients understand the causes of cognitive changes and providing patients with recommendations individually tailored to meet their needs. She is also interested in helping adults understand the normal cognitive changes expected across the lifespan and take action to preserve brain health throughout the aging process. Dr. Lechuga primarily sees adult and older adult patients.

dr-alexis-sliva-headshot

Alexis Sliva, Ph.D

Resident

Click Here for Dr. Alexis Sliva’s Professional Bio

Dr. Alexis Sliva earned her bachelor’s degree in psychology from University of Wisconsin - River Falls and her master’s and doctorate degrees in school psychology from the University of Denver. She completed her pre-doctoral internship and post-doctoral fellowship in clinical psychology at a private practice in Las Vegas, Nevada, with an emphasis on forensic psychology.

Dr. Sliva’s early training focused on supporting students and families from the school environment. Her clinical training has focused on intervention, evaluation, and assessment across community resource center and private practice settings. While she specialized in childhood to early adulthood, she also worked with adult populations. She has experience in the assessment of mood disorders, anxiety, PTSD, psychosis, ADHD, and learning disabilities. In addition, her forensic experience consisted of completing Court ordered evaluations (e.g., child custody, risk, and certification). She is passionate about working with families to establish diagnostic clarity and subsequent resources. She is excited to broaden her clinical experience by completing a lifespan residency in clinical neuropsychology at HNS.

Madison-Blakesley-final

Madison Blakesley

Lead Neuropsychological Technician

Click Here for Madison Blakesley's Professional Bio

Madison recently earned her bachelor's degree from Colorado State University in behavioral and cognitive neuroscience and has previous experience shadowing the pediatric neurosurgeons and PAs at Wolfson Children's Hospital in Jacksonville, Florida.

Madison is a very friendly individual who has worked with kids over the course of her teen years and is excited to interact with youth of all ages as they visit the Horizon office. She hopes she can be another friendly face that welcomes patients into the office and, in one way or another, bring comfort to families as they come in and get the help they deserve.

Bridget_Ausherman_headshot

Bridget Ausherman

Neuropsychological Technician

Click Here for Bridget Ausherman's Professional Bio

Bridget Ausherman earned a Master's degree in Curriculum Development and Instruction with an emphasis in Math and Science from the University of Colorado at Denver. In addition, she holds a Bachelor's in Language Arts in Elementary Education with a minor in Music and a minor in Special Education from the University of Northern Colorado.

After teaching second through fourth grade for 27 years, Bridget decided it was time to retire and begin the next chapter of her life. Bridget brings her immense knowledge as a master teacher and expertise in working with children of diverse abilities to Horizon Neuro. She has an incredible passion for helping others achieve their highest academic, interpersonal, emotional, and intellectual potential.

Ben-Walton-headshot

Ben Walton

Neuropsychological Technician

Click Here for Ben Walton's Professional Bio

Ben Walton earned his bachelor’s degree in psychology at California State University, Chico with a focus in psychopathology and neuroscience. He has experience working with adult patients diagnosed with various mental disorders, including depression, borderline personality disorder, and schizophrenia.

Ben has a heart for helping those in need. Ben lives his life embracing that every life event is both a learning experience and an opportunity to do something impactful. Ben is eager to work with individuals of all ages at Horizon to help them learn more about themselves and their potential.

katharine-bowen

Katharine Bowen

Practice Manager, Director of Billing, and Neuropsych Tech Sub

Click Here for Katharine Bowen's Professional Bio

Katharine is a former Resort Activities Recreation Coordinator for Walt Disney Florida. During her time in this role, she developed a wealth of knowledge and skills in elevated business strategies, communication, networking, and event planning. Katharine has returned to Colorado to put these transferable skills to use in her new role as Practice Manager for Horizon Neuropsychological Services.

Katharine has a Bachelor’s degree in Recreation, Tourism, and Hospitality with an emphasis in Events from the University of Northern Colorado. However, she is looking forward to going back to school to obtain her Master’s in Psychology to further her passion for helping people.

Katharine is excited to assist you and your family as you work with our staff at Horizon Neuropsychological Services to discover your new potential. Her goal is to make you and your family feel as comfortable as possible while visiting our offices.

Robin-Liebgott-Headshot

Robin Liebgott

Medical Receptionist and Neuropsych Tech Sub

Click Here for Robin Liebgott's Professional Bio

Robin Liebgott grew up in the Littleton area and has many wonderful activity recommendations for families while visiting Horizon Neuropsychological Services. She graduated from Columbine High School and received her diploma in business administration from Denver Business College.

Since then, Robin has committed over 20 years as an administrative assistant to doctors, attorneys, executives, and VPs across the medical, oil, energy, and entertainment fields. Her wide-ranging experience has culminated in a dedication to providing the highest level of customer care, which is rooted in proactive communication and a sensitivity to family needs. Importantly, her adoration for helping children stems from raising her own daughter and spending time with her nieces.

Markayla-Mandrell_headshot

Markayla Mandrell

File Clerk

Click Here for Markayla Mandrell’s Professional Bio

Markayla is currently attending University of Colorado, Denver where she is studying for her degree in Recording Arts Technologies. She is on-track to graduate within the next two years.

Markayla's volunteer experience includes being an organizer for Operation Christmas Child—an initiative that sends Christmas presents to children in underprivileged countries. She was responsible for preparing the gift boxes with necessary items, such as toothbrushes, toothpaste, band-aids, clothes, and even toys. Markayla truly has a heart for helping others. In addition, she is hard working and extremely organized—skills that she brings to the Horizon Neuro staff as a file clerk.

Mckenna_Blakesley_Headshot

McKenna Blakesley

File Clerk

Click Here for McKenna Blakesley's Professional Bio

McKenna is currently completing her Associate's degree in biology at Arapahoe Community College. From there, she will finish her Bachelor's degree in Zoology at Colorado State University.

McKenna is excited to bring her exceptional organization skills and attentiveness to detail to her role as Filing Clerk at Horizon Neuro. She is caring and friendly and looks forward to helping the Horizon staff in their pursuit to get families the care they need.

Élishia Sharie, Website Designer, Horizon Neuropsychological Services, Littleton, Colorado

Élishia Sharie

Website Designer and Marketing Consultant

Click Here for Élishia Sharie's Professional Bio

Élishia Sharie has over 12 years of experience in web design, graphic design, and photography. With a bachelor’s degree in Sociology and Marketing, Élishia Sharie has enjoyed consulting and creating marketing collateral for a varied clientele—ranging from the entertainment/media, education, health, beauty, nonprofit, and transportation fields.

Élishia Sharie's ability to provide and incorporate her branding and marketing knowledge in all of her creative works is what makes her a resource for brands and companies that value a professional, consistent, and clear message and look across all media and platforms.

Élishia Sharie is the designer and manager of the Horizon Neuropsychological Services website. To report any website issues, please contact her here.

Dr. Meghan T. Lee, Clinical Neuropsychologist and Owner, Horizon Neuropsychological Services, Littleton, Colorado

Meghan T. Lee, Ph.D

Clinical Neuropsychologist, Director of Pediatric Neuropsychology, and Practice Owner

Click Here for Dr. Meghan T. Lee's Professional Bio

Dr. Meghan T. Lee earned her bachelor’s degree from Colorado State University and both her master’s and Ph.D. from Auburn University. She furthered her education in Neuropsychology through UC Berkeley Extension and Brigham Young University.

Dr. Lee completed her doctoral internship at Utah State Hospital and residency/fellowship at Children’s Neuropsychological Services in Boston, during which time she specialized in pediatric neuropsychology. Throughout her training and career, Dr. Lee has gained comprehensive experience in Neuropsychology across a variety of settings around the U.S., including hospitals (both acute and long-term care), private practices, correctional facilities, and university counseling centers. Although she has specialized in the pediatric population, Dr. Lee has also worked with the adult and geriatric populations across a variety of settings. Deciding to return home to Colorado, she initiated Horizon Neuropsychological Services to help children, youth, and young adults achieve new heights in their development. In sum, Dr. Lee’s breadth of experience throughout her clinical and educational work has led to a wide range of specialties and skills valuable in understanding the complexity of human behavior and development.
Dr-Molly-Sullan

Molly Sullan, Ph.D

Clinical Neuropsychologist and Director of Adult Neuropsychology

Click Here for Dr. Molly Sullan's Professional Bio

Dr. Molly Sullan earned her doctorate degree in clinical psychology, with a specialization in neuropsychology, from the University of Florida. She completed her pre-doctoral internship and her two-year neuropsychology fellowship at the VA San Diego Healthcare System/University of California, San Diego.

Dr. Sullan’s research has focused on understanding the relationship between post-traumatic sleep difficulties and cognitive, psychological, and physiological recovery for patients with a history of acquired brain injury (e.g., traumatic brain injury and stroke). Clinically, she has experience in the assessment of a broad spectrum of neurological disorders both in inpatient and outpatient settings, including brain tumors, epilepsy and movement disorders (e.g., Parkinson’s disease), memory disorders and dementia, stroke and cerebrovascular disease, traumatic brain injury, demyelinating lesions, autoimmune disorders, complex psychiatric concerns, substance use disorders, and neurodevelopmental considerations. She is passionate about working with her patients and their care teams to better understand the patient’s presenting concerns and to determine an effective course of action to address those concerns in their daily lives.

Dr. Sullan sees primarily adult and older adult patients.

Dr_Ramya_Rangamannar_headshot

Ramya Rangamannar, Psy.D

Clinical Neuropsychologist

Click Here for Dr. Ramya Rangamannar's Professional Bio

Dr. Ramya Rangamannar earned her bachelor’s degree from Barnard College at Columbia University and her master's and doctorate degrees in Clinical Psychology from the University of Hartford. She completed her pre-doctoral clinical internship at the University of Florida and post-doctoral fellowship in pediatric neuropsychology at the Children’s Hospital Colorado.

Over the last decade, Dr. Ramya has gained clinical expertise in a multitude of settings (i.e., medical, psychiatric, private practice) with children from early toddlerhood through early adulthood. Despite specialization in pediatrics, Dr. Ramya has also worked with adult and geriatric populations in her training. She prides herself on understanding the "whole child" in the context of their home/family, school, and social realms and in providing families with tangible resources and recommendations in supporting their child’s development and success.

Dr_Meghan_Lechuga_headshot

Meghan Lechuga, Psy.D

Clinical Neuropsychologist

Click Here for Dr. Meghan Lechuga's Professional Bio

Dr. Meghan Lechuga earned her doctoral degree with a concentration in neuropsychology from William James College. She completed her pre-doctoral internship at Staten Island University Hospital and her two-year postdoctoral fellowship in clinical neuropsychology at Columbia University Medical Center.

Dr. Lechuga’s clinical training has focused on the assessment of adults and older adults with a variety of neurological conditions, including diseases causing dementia, movement disorders, epilepsy, traumatic brain injury, stroke, brain cancer, and autoimmune disorders. She also has experience working with patients navigating the functional challenges associated with ADHD, learning disability, mood disorders, and complex medical conditions. She is dedicated to helping patients understand the causes of cognitive changes and providing patients with recommendations individually tailored to meet their needs. She is also interested in helping adults understand the normal cognitive changes expected across the lifespan and take action to preserve brain health throughout the aging process. Dr. Lechuga primarily sees adult and older adult patients.

dr-alexis-sliva-headshot

Alexis Sliva, Ph.D

Resident

Click Here for Dr. Alexis Sliva’s Professional Bio

Dr. Alexis Sliva earned her bachelor’s degree in psychology from University of Wisconsin - River Falls and her master’s and doctorate degrees in school psychology from the University of Denver. She completed her pre-doctoral internship and post-doctoral fellowship in clinical psychology at a private practice in Las Vegas, Nevada, with an emphasis on forensic psychology.

Dr. Sliva’s early training focused on supporting students and families from the school environment. Her clinical training has focused on intervention, evaluation, and assessment across community resource center and private practice settings. While she specialized in childhood to early adulthood, she also worked with adult populations. She has experience in the assessment of mood disorders, anxiety, PTSD, psychosis, ADHD, and learning disabilities. In addition, her forensic experience consisted of completing Court ordered evaluations (e.g., child custody, risk, and certification). She is passionate about working with families to establish diagnostic clarity and subsequent resources. She is excited to broaden her clinical experience by completing a lifespan residency in clinical neuropsychology at HNS.

Madison-Blakesley-final

Madison Blakesley

Lead Neuropsychological Technician

Click Here for Madison Blakesley's Professional Bio

Madison recently earned her bachelor's degree from Colorado State University in behavioral and cognitive neuroscience and has previous experience shadowing the pediatric neurosurgeons and PAs at Wolfson Children's Hospital in Jacksonville, Florida.

Madison is a very friendly individual who has worked with kids over the course of her teen years and is excited to interact with youth of all ages as they visit the Horizon office. She hopes she can be another friendly face that welcomes patients into the office and, in one way or another, bring comfort to families as they come in and get the help they deserve.

Bridget_Ausherman_headshot

Bridget Ausherman

Neuropsychological Technician

Click Here for Bridget Ausherman's Professional Bio

Bridget Ausherman earned a Master's degree in Curriculum Development and Instruction with an emphasis in Math and Science from the University of Colorado at Denver. In addition, she holds a Bachelor's in Language Arts in Elementary Education with a minor in Music and a minor in Special Education from the University of Northern Colorado.

After teaching second through fourth grade for 27 years, Bridget decided it was time to retire and begin the next chapter of her life. Bridget brings her immense knowledge as a master teacher and expertise in working with children of diverse abilities to Horizon Neuro. She has an incredible passion for helping others achieve their highest academic, interpersonal, emotional, and intellectual potential.

Ben-Walton-headshot

Ben Walton

Neuropsychological Technician

Click Here for Ben Walton's Professional Bio

Ben Walton earned his bachelor’s degree in psychology at California State University, Chico with a focus in psychopathology and neuroscience. He has experience working with adult patients diagnosed with various mental disorders, including depression, borderline personality disorder, and schizophrenia.

Ben has a heart for helping those in need. Ben lives his life embracing that every life event is both a learning experience and an opportunity to do something impactful. Ben is eager to work with individuals of all ages at Horizon to help them learn more about themselves and their potential.

katharine-bowen

Katharine Bowen

Practice Manager, Director of Billing, and Neuropsych Tech Sub

Click Here for Katharine Bowen's Professional Bio

Katharine is a former Resort Activities Recreation Coordinator for Walt Disney Florida. During her time in this role, she developed a wealth of knowledge and skills in elevated business strategies, communication, networking, and event planning. Katharine has returned to Colorado to put these transferable skills to use in her new role as Practice Manager for Horizon Neuropsychological Services.

Katharine has a Bachelor’s degree in Recreation, Tourism, and Hospitality with an emphasis in Events from the University of Northern Colorado. However, she is looking forward to going back to school to obtain her Master’s in Psychology to further her passion for helping people.

Katharine is excited to assist you and your family as you work with our staff at Horizon Neuropsychological Services to discover your new potential. Her goal is to make you and your family feel as comfortable as possible while visiting our offices.

Robin-Liebgott-Headshot

Robin Liebgott

Medical Receptionist and Neuropsych Tech Sub

Click Here for Robin Liebgott's Professional Bio

Robin Liebgott grew up in the Littleton area and has many wonderful activity recommendations for families while visiting Horizon Neuropsychological Services. She graduated from Columbine High School and received her diploma in business administration from Denver Business College.

Since then, Robin has committed over 20 years as an administrative assistant to doctors, attorneys, executives, and VPs across the medical, oil, energy, and entertainment fields. Her wide-ranging experience has culminated in a dedication to providing the highest level of customer care, which is rooted in proactive communication and a sensitivity to family needs. Importantly, her adoration for helping children stems from raising her own daughter and spending time with her nieces.

Markayla-Mandrell_headshot

Markayla Mandrell

File Clerk

Click Here for Markayla Mandrell’s Professional Bio

Markayla is currently attending University of Colorado, Denver where she is studying for her degree in Recording Arts Technologies. She is on-track to graduate within the next two years.

Markayla's volunteer experience includes being an organizer for Operation Christmas Child—an initiative that sends Christmas presents to children in underprivileged countries. She was responsible for preparing the gift boxes with necessary items, such as toothbrushes, toothpaste, band-aids, clothes, and even toys. Markayla truly has a heart for helping others. In addition, she is hard working and extremely organized—skills that she brings to the Horizon Neuro staff as a file clerk.

Mckenna_Blakesley_Headshot

McKenna Blakesley

File Clerk

Click Here for McKenna Blakesley's Professional Bio

McKenna is currently completing her Associate's degree in biology at Arapahoe Community College. From there, she will finish her Bachelor's degree in Zoology at Colorado State University.

McKenna is excited to bring her exceptional organization skills and attentiveness to detail to her role as Filing Clerk at Horizon Neuro. She is caring and friendly and looks forward to helping the Horizon staff in their pursuit to get families the care they need.

Élishia Sharie, Website Designer, Horizon Neuropsychological Services, Littleton, Colorado

Élishia Sharie

Website Designer and Marketing Consultant

Click Here for Élishia Sharie's Professional Bio

Élishia Sharie has over 12 years of experience in web design, graphic design, and photography. With a bachelor’s degree in Sociology and Marketing, Élishia Sharie has enjoyed consulting and creating marketing collateral for a varied clientele—ranging from the entertainment/media, education, health, beauty, nonprofit, and transportation fields.

Élishia Sharie's ability to provide and incorporate her branding and marketing knowledge in all of her creative works is what makes her a resource for brands and companies that value a professional, consistent, and clear message and look across all media and platforms.

Élishia Sharie is the designer and manager of the Horizon Neuropsychological Services website. To report any website issues, please contact her here.