Prof. Demi Kostouros

Counselor, Lcoach, Couples, Affair, Repair, ADHD

Verified by Psychology Today Verified by Psychology Today

4 Endorsed

1239 North Country Road, Stony Brook, NY 11790

Photo of Prof. Demi Kostouros, Counselor, Lcoach, Couples, Affair, Repair, ADHD

Struggling in your relationship? Whether you're facing communication issues, rebuilding trust after infidelity, intimacy challenges, recurring conflicts, financial disagreements, parenting struggles, life transitions, relationship doubts, or navigating a divorce, we’re here to help. Our structured, results-driven couples therapy begins with weekly sessions, transitioning to biweekly, then monthly. After your "graduation," we provide two annual check-ins to reinforce progress. Between sessions, you'll receive customized tasks and ongoing support outside of appointments.

My approach is holistic and multicultural. After all, I have lived in multiple countries. Before your first session, we will have a complimentary brief phone call. During this call, we will discuss the reasons that led you to seek therapy. We offer both in-person and virtual therapy to accommodate your needs and preferences in multiple locations.

Come alone or with your partner. Reduce stress, defuse anger and resentment, navigate conflict with less drama, improve your sex life, and find work-life balance. Take the first step on your path to healing. As the saying goes, “A journey of a thousand miles begins with a single step.” Start by texting us today, and remember to stay true to yourself—Be You!

Call or Email Prof. Demi Kostouros now for a free 15 minute consultation - (929) 280-7729

My Practice at a Glance

Available both in-person and online

Be You Psychotherapy, PLLC

1239 North Country Road

Stony Brook, NY 11790 map

(929) 280-7729

Be You Psychotherapy, PLLC

159 New York 25A

Miller Place, NY 11764 map

We offer weekly/biweekly/monthly/quarterly sessions in-person at Stony Brook, NY or virtually. Start with a free consultation call today!

I specialize in Marriage Counseling, Infidelity and Communication

$130 Per Session, I accept insurance

I see individuals, couples and families

Let's Connect (929) 280-7729

My Practice at a Glance

Available both in-person and online

Be You Psychotherapy, PLLC

1239 North Country Road

Stony Brook, NY 11790 map

(929) 280-7729

Be You Psychotherapy, PLLC

159 New York 25A

Miller Place, NY 11764 map

We offer weekly/biweekly/monthly/quarterly sessions in-person at Stony Brook, NY or virtually. Start with a free consultation call today!

I specialize in Marriage Counseling, Infidelity and Communication

$130 Per Session, I accept insurance

I see individuals, couples and families

Finances

Fees

Individual Sessions $130
Couple Sessions $155

Payment Methods

American Express, Discover, Health Savings Account, Mastercard, Visa

Insurance

1199SEIU
Aetna
Anthem
Blue Cross
Blue Shield
BlueCross and BlueShield
Cigna and Evernorth
EmblemHealth
Empire Blue Cross Blue Shield
Excellus BlueCross BlueShield
Government Employees Health Association (GEHA)
Group Health Incorporated (GHI)
Horizon Blue Cross and Blue Shield
Humana
Magellan
NYSHIP | NY State Empire Plan
Optum
Oxford
UnitedHealthcare UHC | UBH
Out of Network

Therapy is an investment, however, costs should never get in the way of therapy. We will also guide you on how to submit a superbill to your insurance company for reimbursement.

Prof. Demi Kostouros

Counselor, Lcoach, Couples, Affair, Repair, ADHD

Call or Email me for a free 15 minute consultation now - (929) 280-7729

Therapy is an investment, however, costs should never get in the way of therapy. We will also guide you on how to submit a superbill to your insurance company for reimbursement.

Prof. Demi Kostouros

Counselor, Lcoach, Couples, Affair, Repair, ADHD

Call or Email me for a free 15 minute consultation now - (929) 280-7729

Qualifications

Verified by Psychology Today Licensed by State of New York / 012314 Demi Kostouros

Additional Credentials

Licensed by State of New York / 012314

Membership with American Psychological Association

Living in various countries throughout my journey, I have had the opportunity to interact with a diversity of people and learned about their cultural backgrounds. This broad perspective allows me to "see" things with a more open mind, navigate and find solutions when it appears there isn't one!

Prof. Demi Kostouros

Counselor, Lcoach, Couples, Affair, Repair, ADHD

Call or Email me for a free 15 minute consultation now - (929) 280-7729

Prof. Demi Kostouros

Counselor, Lcoach, Couples, Affair, Repair, ADHD

Call or Email me for a free 15 minute consultation now - (929) 280-7729

Specialties and Expertise

Top Specialties

Marriage Counseling
Infidelity
Communication

Expertise

ADHD
Adoption
Career Counseling
Codependency
Divorce
Domestic Violence
Family Conflict
First Responders
Grief
Infertility
Life Coaching
Life Transitions
Marital and Premarital
Men's Issues
Parenting
Pregnancy, Prenatal, Postpartum
Relationship Issues
Sex Therapy
Stress
Trauma and PTSD
Veterans
Women's Issues

Couples usually seek out therapy due to communication issues, infidelity, parenting conflict, problems with in-laws, financial issues, health problems, and life transitions such a divorce or grief. Initially, we start meeting 1/week to establish a strong foundation. As progress is made, we will transition to biweekly meetings, and ultimately, we aim to reduce sessions to once a month.

Prof. Demi Kostouros

Counselor, Lcoach, Couples, Affair, Repair, ADHD

Call or Email me for a free 15 minute consultation now - (929) 280-7729

Prof. Demi Kostouros

Counselor, Lcoach, Couples, Affair, Repair, ADHD

Call or Email me for a free 15 minute consultation now - (929) 280-7729

4 Endorsements

Prof. Demi Kostouros

Counselor, Lcoach, Couples, Affair, Trust, ADHD

Seeing a couple's therapist can benefit any relationship, no matter how strong or complicated it may be, and we have a genuine passion for helping couples thrive. Forget yelling, bickering and welcome conflict resolution and overall a peaceful household.

Jay Corbo

Counselor, MSEd, LMHC

Thank you Demi, I have received similar feedback about your too.

Richard A Scala

Counselor, LMHC

Demi is a consummate professional who truly cares about her clients. When needing to make a referral, she is one of the first clinicians I think of. Her superior clinical skills and warm therapeutic presence will assist a client in meeting their goals.

Oscar Pardo

Counselor, LMHC, Couples, Affair, Police, Men

Prof. Demi Kostouros is a leading couples therapist specializing in communication, infidelity, intimacy and many more. Her structured, results-driven approach helps partners reconnect. Relationship help that works, always delivering the best outcomes.

Client Focus

Age

Teen ,

Adults ,

Elders (65+)

Participants

Individuals ,

Couples ,

Family

I also speak

French ,

German ,

Greek ,

Italian

Age

Teen ,

Adults ,

Elders (65+)

Participants

Individuals ,

Couples ,

Family

I also speak

French ,

German ,

Greek ,

Italian

Treatment Approach

Types of Therapy

Acceptance and Commitment (ACT)
Attachment-based
Coaching
Cognitive Behavioral (CBT)
Culturally Sensitive
EMDR
Family / Marital
Feminist
Gestalt
Gottman Method
Imago
Internal Family Systems (IFS)
Parent-Child Interaction (PCIT)
Relational
Solution Focused Brief (SFBT)

Before your 1st session, we will have a brief complimentary phone call. During this call, we will discuss the reasons that led you to seek therapy. By gaining a deeper understanding of your unique challenges, concerns, and goals, we will be able to work together to determine the most suitable approach. One size does not fit all. Therefore, we will not limit ourselves to a single treatment option.

Prof. Demi Kostouros

Counselor, Lcoach, Couples, Affair, Repair, ADHD

Call or Email me for a free 15 minute consultation now - (929) 280-7729

Prof. Demi Kostouros

Counselor, Lcoach, Couples, Affair, Repair, ADHD

Call or Email me for a free 15 minute consultation now - (929) 280-7729

Groups

Communicating with My Partner

Hosted by

Prof. Demi Kostouros

Are you tired of all the unnecessary bickering, fights, and tension that often arise in relationships? We all long for peace, happiness, and an easygoing atmosphere at home, right? Well, we have a supportive community of couples who are looking to connect, share experiences, and find solace in one another's company. It's a safe space for making new friends, venting about our partners, and building a stronger and healthier relationship.

Age

Adults

Session Cost

$80

Group Meets

Every other Fri 7 P.M. - 8 P.M.

Location

Be You Psychotherapy, PLLC

1239 North Country Road

Stony Brook, NY 11790

Email Prof. Demi Kostouros about this group or call - (929) 280-7729

Why did I Cheat?

Hosted by

Prof. Demi Kostouros

Ever wondered why people cheat? It's a common misconception that only men cheat, but women do it too. The difference is that in many cases, men don't find out. Cheating can be a result of a long-term affair or just a spontaneous, one-night thing. Sometimes, it's purely platonic. Both the ones who cheated and the ones who were cheated struggle with the question "why?" Let's come together and try to find the answer to this intriguing question!