About Graymatters

We dedicate ourselves to providing high quality, individualized, outpatient mental health services that focus on the promotion of health, not just the treatment of illness. 

Our clinicians will work with you to promote daily health practices, identify early symptoms of illness, and to intervene quickly and effectively when needed to maintain optimal health.

We treat children, adolescents, adults, and families, with treatment modalities span that multiple disciplines, including pharmacology, psychotherapy, lifestyle changes, and other complementary health promotion strategies.

Our areas of specialty include:

Diagnosis and treatment of psychosis in children, adolescents and adults;

Early intervention strategies for severe mental illness, including psychosis;

Neurodevelopmental Disorders, including Autism/Pervasive Developmental Disorder and ADHD;

Learning Disorders, and helping families seek school based services;

Maternal Mental Health, including prenatal, pregnancy and postpartpartum assessment and treatment;

Psychopharmacologic management of mood, anxiety, disruptive behavior, and psychotic disorders; and

Psychotherapy, eclectic approaches incorporating CBT, DBT, IPT, supportive and psychoanalytic strategies.

Meet Our Staff

Tejal Kaur, MD

Founder, Clinical Director

Email: tkaur@graymattersmd.com   Direct Line: (917) 720-448

I am a board certified child, adolescent and adult psychiatrist with expertise in the early intervention and treatment of neurodevelopmental disorders, including autism spectrum disorders and psychosis. My passions include health prevention and promotion, teaching, writing, activism, and directly working with patients and families. I enjoy working with kids, teens and adults, and use a combination of behavioral strategies, therapy, school or work accommodations, medication and lifestyle changes. I love neuroscience, particularly because science has the power to dispel bias and stigma.

Ruth Alexander, PMHNP-BC

Email: ralexander@graymattersmd.com   Direct Line: (917) 720-4124

I am a Board-Certified Psychiatric Mental Health Nurse Practitioner with experience working in mental health promotion and prevention with young adults, kids, and families. I enjoy working using a holistic approach, combining psychotherapy, psychopharmacology and lifestyle approaches, to treat each individual’s specific needs, including difficulty with sleep, depression, anxiety, performance difficulties at school or work, or situational stressors.

Nicholas Banker, PMHNP-BC

Email: nbanker@graymattersmd.com   Direct Line: (917) 720-4247

I am a Board-Certified PMHNP who joined the Graymatters Team in 2018. During my more than 10 years of nursing experience, I have worked with many different patients to improve their mental wellbeing. I believe in the power of cognitive behavioral therapy (CBT) to change lives and empower individuals. Throughout my training and career, I have been continuously learning the most effective uses of medications and therapy.  I enjoy working with children, teenagers, and adults and using science and therapy to bolster clients’ well-being and positive state of mind.



Elise Steenburgh 

Email: esteenburgh@graymattersmd.com   Direct Line: (917) 720-4132

I am the office manager for Graymatters Medical Practice. I have been a part of the Tejal Kaur, MD team since July 2014.  In addition to my role at Graymatters, I am an academic who teaches, presents, and writes about the effects of the Khmer Rouge on Cambodian music, both historically and contemporaneously. My passions include music and social justice. I enjoy working directly with all of our patients and families, ensuring you all obtain the highest quality of care and treatment as we work collaboratively with you on achieving optimal health.

Gabriela Elia

Email: office@graymattersmd.com  

I am the administrative assistant for Graymatters Medical Practice. I joined the team in July 2016. I am also a part time student in Nutrition Sciences. I am passionate about health food, and my goal is to help people improve their health by changing their eating habits and achieving a healthy lifestyle. At Graymatters Medical Practice, I am also learning that the mind is a key part of overall health, and am working to incorporate mental health approaches into my work. 

Amy Zhu, Student NP

Email: azhu@graymattersmd.com 

I am a Registered Nurse and student at New York University, studying to become a Psychiatric-Mental Health Nurse Practitioner. I am focused on holistic care: caring for each individual in all aspects of health and ability, including psychological state, physical health, stress, nutrition, the environment at home, work, or school, and interpersonal relationships – as all of these are interconnected.  I am fluent in both English and Mandarin and seek to provide a culturally sensitive environment for my clients. I believe people do the best they can, given their circumstances, and I’m here to support you in focusing on your strengths and help you to overcome barriers. 


Jamie Piekarski, Student NP

Email: jpiekarski@graymattersmd.com 

I am a Psychiatric-Mental Health Nurse Practitioner student in my final year of study at New York University.  I am also a Registered Nurse with over five years of experience working with diverse populations in the hospital setting.  I use a variety of approaches in practice including cognitive behavioral therapy (CBT), mindfulness-based techniques, psychopharmacology, and lifestyle changes to provide my clients with an individualized treatment plan.  I take an empathic stance and believe we are all capable and deserving of a meaningful & fulfilling life.  I believe in working collaboratively to increase the self-awareness, self-compassion, and self-esteem that empowers individuals to achieve their goals.