Credentialed and Experienced


Child, Adolescent & Adult Psychiatrist

Dr. Huma Mahmood

Dr. Mahmood earned her undergraduate degree from Tufts University in Medford, MA, where she majored in Pre-Medicine and Child Development. Dr. Mahmood went on to earn her medical degree from the University of Medicine and Dentistry of New Jersey-SOM, where she focused on Psychiatry and Neurology. Additionally, she volunteered at the Child Abuse Research Education & Service Institute, working with child abuse victims.

She completed a post-doctoral training in a rigorous, three-year general psychiatry residency at Albert Einstein Medical Center in Philadelphia, PA. During her residency training, Dr. Mahmood worked at the Germantown Crisis Response Center in Philadelphia. Dr. Mahmood went on to attend the Child & Adolescent Psychiatry fellowship program at Thomas Jefferson University where she was nominated and served as the Chief Resident during her second year.

Dr. Mahmood obtained her Board Certification in Psychiatry and Neurology and then her subspecialty Board Certification in Child and Adolescent Psychiatry.

In addition to her rapidly expanding private practice on the Main Line, Dr. Mahmood also works as a Child, Adolescent & Adult Psychiatrist at The Horsham Clinic in Ambler, PA. There, she heads an acute Dual Diagnosis inpatient unit.

Dr. Mahmood comes from a family of physicians and understands the importance of practicing effective patient care. Dr. Mahmood is well regarded by her colleagues as evidenced by her nomination for the Doctors’ Choice Awards in 2015. She received the Doctors’ Choice Award for Top Psychiatrist in the nation in October 2015, Doctors’ Choice Award for Top Adolescent Psychiatrist in Philadelphia in 2015 and Patients’ Choice Awards in 2014 & 2015. In 2016 Dr. Mahmood was voted in the TOP 100 Doctor’s in the nation. She is often described as ‘compassionate’, ‘professional’, and ‘dedicated’ to her patients.

Dedicated and Empowering


Clinical Director – Blue Bell Location

Jillian Jackson, MSW

Jillian Jackson received her undergraduate degree from University of Delaware and went on to receive her Masters of Social Work from Marywood University.  Currently a Licensed Clinical Social Worker,  Jillian began her career working with adolescents and, while she continues to specialize in helping adolescents today, Jillian expanded her expertise to include adults.

Jillian uses a holistic approach to help individuals with depression, anxiety, PTSD, substance use, ADHD and myriad other issues and conditions. Jillian’s extensive experience includes working in an inpatient psychiatric setting, a community mental health center, private practice, grant writing and creating programming for adolescents.

Jillian is trained in Cognitive Processing Therapy, a specific approach to treating stress and trauma and recently presented on this at a conference. Jillian is also Reiki I certified and experienced in couples and family therapy. She is additionally skilled in connecting clients with local resources.

Jillian served on the Network of Victim’s Assistance Young Professional Board and is a member of the National Association of Social Workers. Her wide variety of experience and her leadership skills allow her to connect with clients to identify the root of the issue and develop a plan to obtain goals and find peace. Jillian’s empathy and passion are evident in every facet of her work.

Clinical Director – Newtown Location

George Kupinewicz, MSW, LSW

George is a licensed social worker who graduated at top of his class from Temple University with a master’s degree in social work. George is driven by his passion to help others and has been working in the field of addiction and co-occurring mental health since 2012.

George tailors a holistic health care model to meet the individual’s specific characteristics and needs. Using an eclectic approach, George draws from a variety of theoretical perspectives using evidence-based research, interventions, and creativity. Models include, Motivational Interviewing, Cognitive Behavioral Therapy, Trauma Informed Care, Family Therapy, and Life Skill enhancement.

George works with the individual and their families to draw out strengths to empower and elicit vision of hope. George’s favorite quote, “we have the power to re-invent ourselves.”

Social Worker

Nichole Smith

Nichole boasts a social work degree from West Chester University along with wide-ranging training in drug and alcohol, mental health, case management, and motivational interviewing. 

She was employed with Juvenile Probation for nine years where she worked with young adults, individuals, and families using an eclectic approach tailored to the unique needs of each client. Nichole has experience in a variety of settings, understands the inner workings of the drug and alcohol system, and has worked with diverse clients, including both long-term and brief interventions.

In addition to her many abilities listed above Nichole brings an energy and motivation that is an inspiration to those around her.  Her knowledge and her passion rubs off on anyone working with her creating a team environment with everyone focused and motivated to provide the best services to all her clients.

Professional Counselor

Gina Marie McMahon, MS, LPC

Gina Marie McMahon is a licensed professional counselor who is knowledgeable in both mental health issues as well as addiction disorders. Gina’s therapeutic approach is client-centered and includes holistic, humanistic, and recovery model techniques.

She has worked with both adolescents and adults, in both inpatient and outpatient settings, who have struggled with mental health, eating disorders, and/or substance abuse disorders. Gina believes that individual, group, and family counseling each play an imperative role in one’s healing process.

Additionally, she strives to help her clients reconnect with tasks that once brought them joy and fulfillment.  Gina is a lover of the arts and encourages her clients to express themselves in different modalities, such as writing, art work, music, dance, and so forth.

Clinical Therapist

Michael Gill, M.S.

Michael has been working in the substance use disorder treatment field since 2015. He began his employment as a behavioral health technician at a residential treatment program. He completed his Bachelor’s degree in Applied Behavioral Science in September of 2015, and his Master’s program in Clinical Mental Health Counseling in March of 2019.

He has been employed as a counselor for several different substance use treatment agencies, and has received training in the Trauma Recovery Empowerment Model and Male Trauma Recovery Empowerment Model, as well as Moral Recognition Therapy.

Michael has attended Cognitive Behavioral Therapy trainings and trainings related to specialty populations such as LGBTQ individuals throughout the years. He utilizes an integrative approach to counseling to individualize treatment to most effectively address the concerns of the individual in the context of their own life and experience, incorporating aspects of motivational interviewing, acceptance and commitment therapy, cognitive behavioral therapy and person centered therapy.

Clinical Therapist

Darby Pistilli, M.S.

Darby is a masters level therapist who graduated amongst the top of her class at Chestnut Hill College, where she studied clinical and professional psychology, with a concentration in trauma.

Darby has been in the field of addiction since 2016, where she has worked in multiple levels of care: detox, residential, PHP, IOP, and GOP. She created a specialty program for those who have had multiple attempts at recovery, but struggled to remain sober.

In addition to practicing therapy, Darby has conducted research studies that primarily focused on the prevention, development, and intervention strategies for eating disorders among the young adult population. Darby continuously works to expand her knowledge by researching and attending training for empirically based interventions for multicultural populations, and implements these learned interventions in her therapeutic practice.

Clinical Therapist

Jennifer Kotch, MFT

Jennifer completed a her Master’s degree in Marriage and Family Therapy at Holy Family University in August of 2015. She started her career working with adolescent in an emergency shelter program while completing her Bachelor Degree at Penn State University.

She has worked in adolescent group homes and in a respite program for children with Autism. She then moved on to working with adolescents and their families in a Family Based Program. She has extensive experience working in both mental health and substance abuse settings. She has worked in both MAT and Drug-free programs supporting clients in their homes, community, and in an office.

Jennifer uses a systemic approach based largely around Structural Family Therapy Theory. She also uses Motivational Interviewing, Person-Center approach, Cognitive-Behavioral Therapy, and Solution Focused Therapy to help her clients feel empowered and motivated.

She believes that the family structure changes with each change an individual within the system makes and it is important to have the family system involved in treatment. Jennifer has the thought that every person deserves to be happy and has the power to change their life; Therapy is just one avenue to assist with each individual’s journey.

Clinical Therapist

Gina Tomaselli

Gina comes from a vast background in addiction treatment. She has been part of the addiction field for 10 years and has experience in a wide variety of levels of care (detox, inpatient, partial hospitalization intensive outpatient, and general outpatient).

When Gina started at Supreme, she started as a Care Coordinator and has recently been promoted to Associate Counselor. Gina has completed her Associates degree in Social Work and is beginning to work on her Bachelor’s degree.

It’s really quite simple


Empowering those who suffer from addiction through high quality treatment nurturing the mind, body and spirit.

We believe that in order to achieve our mission, we need to adhere to a philosophy and practice of health and wellness for our staff and clients. The healthier the organization is, the greater the quality of service we can provide. We take pride in our growing business and dedicated staff. Supreme Wellness is a diverse team of professionals committed to achieving positive client outcomes by delivering appropriate quality care in an ethical and compassionate manner. We look to treat the whole person by providing not only clinical treatment, but also life and job skills to invest in their own future. Recovery can be maintained with a purpose.

What we strive for



We create a quality of care to meet our clients’ needs and the needs of the community.


We deliver extensible, customized care to meet the needs of individual clients.


We seek to set and deliver industry standards for behavioral health programming, service, and care.


We are committed to achieving the highest standards of ethics and compliance.


We are a strong provider of integrated clinical team support for our employees.


We meet defined financial goals to sustain the viability of the programs that support our clients.

We are always here to help



Supreme Wellness is a diverse team of professionals committed to achieving positive client outcomes by delivering appropriate quality care in an ethical and compassionate manner. We look to treat the whole person by providing not only clinical treatment, but also life and job skills to invest in their own future.

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