Ethan  Seidman

Ethan Seidman

Psychologist, PhD

Not accepting new clients in Cambridge practice (updated March 19, 2020)

Not accepting new clients in Online therapy practice (updated March 19, 2020)

Offers Online Sessions

Specialties & Expertise

  • Blocks to school/work productivity
  • Career and school stress
  • Relationship issues
  • Online addictions
  • Sex/sexuality issues
  • Anxiety
  • Depression
  • Existential challenges
  • Trauma
  • Cultural adjustment
  • Family issues

Professional statement

Dr. Ethan Seidman is the founder and director of Kendall Psychological Associates in Cambridge, Massachusetts and as a psychologist he works with a wide range of individuals. His areas of interest include: depression, anxiety, relationship issues, trauma, online addictions, sex/sexuality issues, and blocks to productivity at school and work. Dr. Seidman works from an integrative perspective, incorporating AEDP, mindfulness, and psychodynamic psychotherapy. He is also an EMDR trained therapist.

He graduated from Wesleyan University and received his Ph.D. from the University of Massachusetts Boston. He did his internship and post-doctoral fellowship at the Cambridge Health Alliance, a Harvard Medical School teaching hospital. He was then a Clinical Instructor at Harvard Medical School for over 10 years.

Message to clients

I provide a warm, attentive, and interactive psychotherapy relationship that aims to help people deepen their self-understanding, break out of hurtful patterns, and develop new modes of thinking, feeling, and relating to others that will reduce depression and anxiety. I am particularly interested in trying to help clients feel freer, more real, more connected, and more like the authors of their own lives, so that they can achieve what they hope for in work and relationships.


Blocks to school/work productivity - Addressing underperformance in school coursework or job productivity

Career and school stress - Difficulties managing uncertainty about career or school, procrastination, low self-confidence, feelings of not living up to your potential

Relationship issues - Feeling unsatisfied in your partnership; communication challenges; addressing issues of power and voice; contemplation of separation; questioning one’s place in the relationship; breakups, friendships, dating

Online addictions - Reducing and preventing the negative impact of excessive screen time on physical and mental health

Sex/sexuality issues - Addressing emotional, physical, and biological concerns related to sexual intimacy and functioning; education and skill building around topics such as erectile dysfunction, orgasms, low libido, shame, and history of abuse; improving communication to realize a fulfilling sex life

Anxiety - Generalized anxiety, social anxiety, panic attacks

Depression - Sleep and energy disruption, overall mood disturbance, inability to enjoy yourself, and difficulty being motivated, amongst many other symptoms

Existential challenges - Questioning purpose, spirituality, existence; finding one’s path and voice, especially when it differs from society's expectations

Trauma - Including dealing with past sexual assault, childhood trauma, environmental trauma (e.g. witnessing/experiencing violence), PTSD (post traumatic stress disorder)

Cultural adjustment - Transitioning from another country, state, or city; adjusting as an international student or out-of-state student

Family issues - Includes helping parents with their own issues within the context of supporting children; helping young adults navigate family issues

General expertise

Out-of-pocket fees

  • Ongoing sessions: $180
  • Group sessions: $45

Therapist's note

For clients with Blue Cross Blue Shield: Clients with Blue Cross Blue Shield plans are responsible only for co-pays and deductibles. Payment is due at the time of your meeting. 

For clients with insurance other than Blue Cross Blue Shield: Our services may still be covered in full or in part by your health insurance or employee-benefit plan. Most PPO and POS plans have "out-of-network" benefits that will cover some percentage of the cost. If you have an HMO from a company other than BCBS, most likely your insurance will not cover our services and you would need to pay directly. Read about the benefits of seeing an out-of-network provider here.


Remote video therapy sessions offered? Yes

Cambridge practice

234 Broadway

Suite 2

Cambridge, MA 02139

  • Mon Please inquire about hours
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Online therapy practice
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  • Sun Please inquire about hours

Work and Education

Kendall Psychological Associates, Founder and Director, 2012-Present

Private Practice, 2004-2012

Harvard Medical School, Clinical Instructor, 2005-2015

University of Massachusetts, Boston, PhD, 2003

Wesleyan University, BA, 1990


  • English

Professional endorsements

Rebecca Winborn, LICSW

With his practice located near MIT, Ethan has a depth and breadth of experience helping his patients drop down into feeling states. His capacity to attune himself to the attachment styles of those he works with is highly developed, so he’s effective in creating a safe holding environment for healing and growth to occur. As a colleague, Ethan is consistently responsive to referral requests and great at sharing resources.

Suzanne Marcus, LMFT

Dr. Seidman is highly skilled and effective. His advanced training in working with complex issues, along with his sensitivity, sharp clinical judgement, and exceptional responsiveness to his clients’ needs, combine to make him a notably talented therapist.