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He studied psychology and philosophy at Fairfield University, before gaining Board Certification in Applied Behavior Analysis from Long Island University, and a Masters of Social Work from SUNY Stony Brook. Subsequent to gaining licensure in Social Work, Mark has trained in Cognitive Behavioral Therapy (CBT), Eye Movement Desensitization and Reprocessing (EMDR), Internal Family Systems (IFS), and Mindfulness Based Stress Reduction (MBSR). Mark maintains a private practice in Huntington, NY, and lives with his wife and children on Long Island. https://www.markgcalder.com/philosophy daily 0.75 2019-04-16 https://www.markgcalder.com/contact daily 0.75 2025-08-28 https://www.markgcalder.com/adhdcoaching daily 0.75 2019-04-12 https://www.markgcalder.com/directory daily 0.75 2024-11-10 https://www.markgcalder.com/therapy daily 0.75 2019-04-12 https://www.markgcalder.com/home daily 1.0 2020-05-02 https://images.squarespace-cdn.com/content/v1/5aa48a11c258b40beb84eb5b/1585448054725-E6WQWQ0S8PQXLGSIUT47/sunrise-picture-id506472311.jpg Home https://images.squarespace-cdn.com/content/v1/5aa48a11c258b40beb84eb5b/1585503228823-2C8QEJOAKX67PO1AY964/small-dock-and-boat-at-the-lake-picture-id537635934.jpg Home - About Find out about counseling, coaching, and the transformative power of self-ownership. https://images.squarespace-cdn.com/content/v1/5aa48a11c258b40beb84eb5b/1585507506762-7N0Y59I9IOFSOEJZFVT6/iStock-1209278528.jpg Home - Take Action Ready to take the next step? Connect with me via social media, contact me directly, or access available resources. https://www.markgcalder.com/philosophy-1 daily 0.75 2020-03-29 https://images.squarespace-cdn.com/content/v1/5aa48a11c258b40beb84eb5b/1585616091710-RUX9ZQGWM41EG8HDQWNN/image-asset.jpeg Philosophy https://www.markgcalder.com/adhdcoaching-1-1 daily 0.75 2020-03-31 https://images.squarespace-cdn.com/content/v1/52a74d9ae4b0253945d2aee9/1390505394162-W51WFS0M8F9TXWY7LPDY/chambers-10.jpg ADHD Coaching https://www.markgcalder.com/therapy-1 daily 0.75 2021-02-21 https://images.squarespace-cdn.com/content/v1/5aa48a11c258b40beb84eb5b/1585689255726-0ZUTS2DT6ZFRPAXRAX4C/image-asset.jpeg Therapy https://www.markgcalder.com/relationship-counseling-1 daily 0.75 2020-05-01 https://images.squarespace-cdn.com/content/v1/5aa48a11c258b40beb84eb5b/1585689649764-17I73LQKXVLLYB7P2EQS/image-asset.jpeg Relationship Counseling https://www.markgcalder.com/adhd-coaching-1 daily 0.75 2020-04-23 https://images.squarespace-cdn.com/content/v1/5aa48a11c258b40beb84eb5b/1585689907651-1GWQS5LMBI38594IMTQV/image-asset.jpeg ADHD Coaching https://www.markgcalder.com/life-coaching daily 0.75 2020-04-30 https://images.squarespace-cdn.com/content/v1/5aa48a11c258b40beb84eb5b/1587607530251-E65QFEL202UX2ERE0NIR/image-asset.jpeg Life Coaching https://www.markgcalder.com/videos daily 0.75 2020-05-02 https://www.markgcalder.com/pdfs daily 0.75 2025-08-20 https://www.markgcalder.com/home-alt-bedford daily 0.75 2025-05-12 https://images.squarespace-cdn.com/content/v1/52a74d9ae4b0253945d2aee9/1390500612440-PGQSIY8KL9F7T5VIXQLO/chambers-2.jpg Home Alt A better world Starts with a choice Contact Us https://images.squarespace-cdn.com/content/v1/52a74d9ae4b0253945d2aee9/1390500503574-5BAPXZO9U06UV61P49UO/chambers1.jpg Home Alt Sustainability Starts with you Join Us https://images.squarespace-cdn.com/content/v1/52a74d9ae4b0253945d2aee9/1390500933384-LII4SRIPHFYOUFX0UCXC/chambers-4.jpg Home Alt A better world Starts with a choice Join Us https://images.squarespace-cdn.com/content/v1/52a74d9ae4b0253945d2aee9/1390504287124-HQ8GNX1JCE22V047MSQ9/chambers-8.jpg Home Alt Preserve Nature Join Us https://www.markgcalder.com/subscribe daily 0.75 2025-11-15 https://www.markgcalder.com/past-newsletter daily 0.75 2026-03-18 https://www.markgcalder.com/podcasts daily 0.75 2026-03-18 https://images.squarespace-cdn.com/content/v1/5aa48a11c258b40beb84eb5b/008daf95-864d-4831-a5e3-3af0ec9bc59d/pod+logo+2.png Podcasts - What’s On Your Mind with Mark & Will A podcast from OYL Media about the questions beneath the surface — the ones that quietly shape how we live, love, and see ourselves. In each 20-minute conversation, Mark and Will bring together psychology, coaching, honest reflection, and faith, to explore what it means to live with self-ownership, courage, and grace.