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Meet the Staff


David Walden, Ph.D.

Director & Staff Psychologist

I am the Director of the Center and enjoy creating an excellent workplace for myself and my colleagues that serves our students well as they navigate this time in their lives. My therapeutic areas of interest include romantic relationships, childhood sexual abuse, identity issues, LGBTQ and gender identity concerns, dynamics related to marginalization, oppression, and racial identity, and existential issues. My approach to therapy is grounded in a broadly humanistic perspective, and I see dialogue as a way to connect people in their shared humanity. I also value humor as a way to break down barriers to intra and interpersonal connection. In addition to enjoying my time at work, I love spending time with my two beautiful and thoughtful kids, riding my bike to work, rock climbing, and engaging in dialogue with the natural world. I'm working on combining the latter two interests with therapy and provide "Therapy on the Rocks" and the "Wilderness Adventure Quest".

Sascha Arbouet, MD

Psychiatrist

Sascha completed her B.A. in Psycho-biology at Hamilton ('99) and her M.D. from Albany Medical College. Sascha completed her residency at Hillside Hospital/Long Island Jewish in Queens, a Child and Adolescent Psychiatry Fellowship at SUNY Upstate in Syracuse (Go Orange!) and is Board Certified by the American Board of Psychiatry and Neurology. Her areas of focus include working with individuals dealing with anxiety, those on the autistic spectrum, and cultural issues including questions regarding gender, sexual orientation, adoption, multicultural identity and immigration. Sascha's approach to treatment is one that emphasizes trust, respect, confidentiality, and compassion with a commitment to individualized treatment provided in collaboration with therapists and other providers to promote the highest degree of overall individual well-being.

Sarah Janelle Colwell, Psy.D.

Post-Doctoral Fellow

Well hello there! I hail from California and am thrilled to be a part of this great team. In interacting with me you’ll quickly glean that I am quirky and I like to think quite delightful. In my office I would encourage you to similarly embrace the dynamic aspects of yourself that you might feel pressure to conceal from others. In this we can cry and belly laugh together, with each of these moments being equally weighted with meaning. Come as you are, because you’re welcome here. I work from a feminist psychology perspective that is heavily influenced by how relational attachments influence our inner worlds. Translation? In the room we are equals and you are the expert on yourself. I will aid in helping you clarify your feelings and thoughts and give you tools to do so more effectively on your own. It is ultimately you who empowers yourself to grow into the kind of person you want to be and I have the great privilege of seeing that growth up-close. As E.E. Cummings said, “It takes courage to grow up and become who you really are,” and we are all in this journey together.

Heather Cosgrove, Ph.D.

Staff Psychologist, Peer Counselor Program Coordinator

I’m a native of Upstate NY, equally embracing the beautiful autumn scenery as well as the unforgiving winter wasteland. My training has brought me to Geneva, Buffalo, central Illinois, and finally here! I welcome the opportunity to work with a broad range of concerns but have specialized interests in disordered eating, family of origin (including abuse and neglect), women’s issues, identity exploration, and anxiety/perfectionism. My approach is highly collaborative, honoring you as you are while encouraging reflection, insight, and empowerment to help you heal and grow. I also coordinate our Peer Counseling Program. In my free time you can find me baking delicious treats, playing video games (I am fierce at Mario Kart), quoting the latest episode of Real Housewives, and laughing loudly with my friends and family.

Hidetoshi Hama, Ph.D.

Staff Counselor

Hello! I grew up in Osaka, Japan, and moved to the U.S. in 1999. Prior to receiving my doctoral degree in Counseling/School Psychology from University at Buffalo, I completed my internship at the University of Florida Counseling & Wellness Center. My areas of interest include interpersonal dynamics, international student adjustment concerns, and counseling and advocacy work with students with various dis-abilities. I also provide Individualized Biofeedback for many common concerns like anxiety, insomnia, and attention deficits. As for my approach to therapy, I strive to develop a strong client-therapist alliance by paying close attention to the client’s narratives and cultural contexts in which s/he lives, as well as by using humor (mindfully, of course!). In my spare time, I enjoy a wide variety of activities with my family and friends, from chatting over cups (yes, plural) of coffee, going to see a comedy show in NYC, to playing tennis and hitting the beach! I am very excited to be a part of our Counseling Center family and meet new people at Hamilton. When you spot me on campus, please feel free to say hello!

Dennis LaLonde, Psy.D.

Staff Psychologist, Group Program Coordinator

Hi! My education and training has brought me to many different settings and locations, and I love that it brought me here to work with such a great group of people. I coordinate Group Therapy experiences for the center, and see group as a first choice for relationship concerns as well as critical in promoting mindfulness and well-being. My style is intra and interpersonally driven and emotion focused. I have a lot of experience promoting health through mind/body awareness, and particularly enjoy working with identity exploration, GLBT concerns, interpersonal or group dynamics, and using mindfulness techniques for anxiety and depression. I love being outdoors, kyaking, being with my cat and goats, travel, and experimenting in the kitchen as I cook for myself, my family, and my friends.

Shannon March

Graduate Intern

I'm a graduate intern for the 2016-2017 school year, and am a Clinical Mental Health Counseling master’s candidate at Syracuse University. I obtained a B.A. in Psychology from Le Moyne College. I have been a personal counselor at Syracuse University’s iSchool of Information Technology since 2015, working individually with students to encourage academic and personal growth. I'm excited to discover all that Hamilton College has to offer and to explore the surrounding community, especially the local cafes and farmer’s markets. Outside of the classroom, I enjoy exercise and wellness. I've completed three Boilermaker 15k road races and am most likely to be found walking the outdoor trails whenever the sun is out. I'm also a Central New York native and can give great recommendations about one of the area’s best assets: unique food!

Mary Hoying P'09

Office Coordinator

Hello! I joined the Counseling Center after 15 years working in Communications and Development at Hamilton. As office coordinator, I manage workflow, schedule appointments, coordinate data research, and manage communication with external resources. I am a lifelong Central New Yorker and I enjoy travel, history, cooking and baking. I'm married with one son, who graduated from Hamilton in 2009!

Lily McArn

Therapy Dog

Lily visits the Center on Tuesdays. She is a black lab mix who came to live with College Chaplain Jeff McArn after being placed in a rescue facility. Lily’s interests focus on outdoor recreation, particularly involving squirrel life, but if a rabbit or ground hog are available, they produce a special quiver in her heart. She loves long walks on cross-country trails in the summer and golf course sprints in the winter where deer wander. While pictured above with her book Inside of a Dog, Lily cannot in fact read, but she is a solid couch potato, able to sit through multiple conversations and movie viewings at a stretch. In December, 2015, she drove to Tonowanda, NY for her certification exam to become a therapy dog. She passed her 13-point exam with flying colors and proudly wears her official insignia when she is at work. She has made official therapy visits to Community Memorial Hospital in Hamilton, NY and the Presbyterian Home in New Hartford, NY and is primed and ready to sit with students who desire her company in therapy sessions in the Counseling Center at Hamilton College.

Contact Information


Counseling Center

100 College Hill Road
Clinton, NY 13323
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