Our Team
Dr. Nick Flower
Licensed Clinical Psychologist, Psy.D.
Dr. Nick Flower is a licensed clinical psychologist and the President of OCD Spectrum. He created OCD Spectrum to be a leading OCD and anxiety treatment center for Pennsylvania, offering evidence-based care in a supportive and affirming environment.
Dr. Joshua Riley
Psychiatrist, M.D.
Dr. Joshua Riley is a psychiatrist who specializes in working with people struggling with OCD and anxiety disorders. He has experience supporting individuals with OCD, anxiety, body dysmorphia, mood disorders, sleep disorders, and psychosis. His approach is collaborative, helping clients identify what is truly valued and important to them while exploring the most helpful treatment options.
Michelle Camper
Office Manager
Michelle Camper is OCD Spectrum’s Office Manager. She has over 15 years of experience managing mental health practices in Pennsylvania and Georgia. Michelle is available to answer questions related to billing, scheduling, and general practice information.
Kristen Mackel
Licensed Clinical Social Worker
Kristen Mackel, LCSW, LICSW, LCSW-C brings 20 years of experience providing mental health services in intensive outpatient and outpatient settings. She specializes in evidence-based therapies including DBT, CBT, EMDR, ERP, SPACE, and RO DBT, with expertise in anxiety, depression, OCD, BFRBs, performance enhancement, and athlete mental health.
Mike Nixon
Licensed Professional Counselor, LPC
Mike Nixon is a Licensed Professional Counselor with a results-oriented approach to therapy. He specializes in evidence-based treatments rooted in Cognitive Behavioral Therapy, including Exposure and Response Prevention, and integrates Existential-Humanism to support growth, insight, and practical change.
Danielle Claassen
Licensed Professional Counselor, LPC
Danielle Claassen is a Licensed Professional Counselor with a compassionate, results-oriented approach to therapy. She specializes in CBT, ERP, ACT, and Habit Reversal Training, with a focus on OCD, anxiety disorders, and body-focused repetitive behaviors. She works closely with children, adolescents, and young adults.
Kasey Puleo
Licensed Professional Counselor, LPC
Kasey Puleo is a Licensed Professional Counselor who specializes in providing care to children, teenagers, and young adults. She uses evidence-based treatments for anxiety and OCD, including CBT, ERP, client-centered therapy, and SPACE therapy, while building a strong foundation of trust, safety, and collaboration.
Aurora Newman
Pre-Licensed Postdoctoral Psychologist
Aurora Newman is a pre-licensed postdoctoral psychologist who specializes in treating OCD and anxiety-related disorders. She has training and experience in evidence-based interventions, including Cognitive Behavioral Therapy and Exposure and Response Prevention for adults. Aurora emphasizes patient autonomy, active engagement, compassion, and structured support.
Angelina Zimmerman
Licensed Professional Counselor, LPC
Angelina Zimmerman is a Licensed Professional Counselor passionate about providing high-quality counseling and behavioral health services. She specializes in the treatment of OCD through a Cognitive Behavioral Therapy framework and provides individualized, holistic interventions using a warm, collaborative, and practical therapeutic approach.
- Dr. Nick Flower
Our Team
Dr. Nick Flower
Licensed Clinical Psychologist, Psy.D.
Dr. Nick Flower is a licensed clinical psychologist and the President of OCD Spectrum. He created OCD Spectrum to be a leading OCD and anxiety treatment center for Pennsylvania, offering evidence-based care in a supportive and affirming environment.
Dr. Joshua Riley
Psychiatrist, M.D.
Dr. Joshua Riley is a psychiatrist who specializes in working with people struggling with OCD and anxiety disorders. He has experience supporting individuals with OCD, anxiety, body dysmorphia, mood disorders, sleep disorders, and psychosis. His approach is collaborative, helping clients identify what is truly valued and important to them while exploring the most helpful treatment options.
Michelle Camper
Office Manager
Michelle Camper is OCD Spectrum’s Office Manager. She has over 15 years of experience managing mental health practices in Pennsylvania and Georgia. Michelle is available to answer questions related to billing, scheduling, and general practice information.
Kristen Mackel
Licensed Clinical Social Worker
Kristen Mackel, LCSW, LICSW, LCSW-C brings 20 years of experience providing mental health services in intensive outpatient and outpatient settings. She specializes in evidence-based therapies including DBT, CBT, EMDR, ERP, SPACE, and RO DBT, with expertise in anxiety, depression, OCD, BFRBs, performance enhancement, and athlete mental health.
Mike Nixon
Licensed Professional Counselor, LPC
Mike Nixon is a Licensed Professional Counselor with a results-oriented approach to therapy. He specializes in evidence-based treatments rooted in Cognitive Behavioral Therapy, including Exposure and Response Prevention, and integrates Existential-Humanism to support growth, insight, and practical change.
Danielle Claassen
Licensed Professional Counselor, LPC
Danielle Claassen is a Licensed Professional Counselor with a compassionate, results-oriented approach to therapy. She specializes in CBT, ERP, ACT, and Habit Reversal Training, with a focus on OCD, anxiety disorders, and body-focused repetitive behaviors. She works closely with children, adolescents, and young adults.
Kasey Puleo
Licensed Professional Counselor, LPC
Kasey Puleo is a Licensed Professional Counselor who specializes in providing care to children, teenagers, and young adults. She uses evidence-based treatments for anxiety and OCD, including CBT, ERP, client-centered therapy, and SPACE therapy, while building a strong foundation of trust, safety, and collaboration.
Aurora Newman
Pre-Licensed Postdoctoral Psychologist
Aurora Newman is a pre-licensed postdoctoral psychologist who specializes in treating OCD and anxiety-related disorders. She has training and experience in evidence-based interventions, including Cognitive Behavioral Therapy and Exposure and Response Prevention for adults. Aurora emphasizes patient autonomy, active engagement, compassion, and structured support.
Angelina Zimmerman
Licensed Professional Counselor, LPC
Angelina Zimmerman is a Licensed Professional Counselor passionate about providing high-quality counseling and behavioral health services. She specializes in the treatment of OCD through a Cognitive Behavioral Therapy framework and provides individualized, holistic interventions using a warm, collaborative, and practical therapeutic approach.
- Dr. Nick Flower
Like this article?
About the Author:
Dr. Nick Flower
You Might Also Like These:
My Kid Has Anxiety? How Can I Tell?
Parents know their kids. Their favorite colors, their interests, their dislikes. However, identifying how their children are feeling is not always straight forward. Kids are
“Ridiculous!!!” Using Humor as a Tool to Combat OCD, Phobias and Core Fears
Wait, what?!!! You say poking fun at fear can make me feel better? Well first off, let’s get something straight…OCD is not funny. It’s about
“What Is My Gut Telling Me?” Part Two: How OCD Hijacks Your Gut Feelings
As we learned in the last post, the mind and gut communicate with each other. The connection between our brain and our gut is essential
Dr. Nick Flower
Licensed Clinical Psychologist, Psy.D.
Dr. Nick Flower is a licensed clinical psychologist and the President of OCD Spectrum. He created OCD Spectrum to be a leading OCD and anxiety treatment center for Pennsylvania, offering evidence-based care in a supportive and affirming environment.
About the Author:
Dr. Nick Flower
You Might Also Like These:
My Kid Has Anxiety? How Can I Tell?
Parents know their kids. Their favorite colors, their interests, their dislikes. However, identifying how their children are feeling is not always straight forward. Kids are
“Ridiculous!!!” Using Humor as a Tool to Combat OCD, Phobias and Core Fears
Wait, what?!!! You say poking fun at fear can make me feel better? Well first off, let’s get something straight…OCD is not funny. It’s about
“What Is My Gut Telling Me?” Part Two: How OCD Hijacks Your Gut Feelings
As we learned in the last post, the mind and gut communicate with each other. The connection between our brain and our gut is essential
Like this article?
About the Author:
Dr. Nick Flower
You Might Also Like These:
My Kid Has Anxiety? How Can I Tell?
Parents know their kids. Their favorite colors, their interests, their dislikes. However, identifying how their children are feeling is not always straight forward. Kids are
“Ridiculous!!!” Using Humor as a Tool to Combat OCD, Phobias and Core Fears
Wait, what?!!! You say poking fun at fear can make me feel better? Well first off, let’s get something straight…OCD is not funny. It’s about
“What Is My Gut Telling Me?” Part Two: How OCD Hijacks Your Gut Feelings
As we learned in the last post, the mind and gut communicate with each other. The connection between our brain and our gut is essential
Dr. Nick Flower
Licensed Clinical Psychologist, Psy.D.
Dr. Nick Flower is a licensed clinical psychologist and the President of OCD Spectrum. He created OCD Spectrum to be a leading OCD and anxiety treatment center for Pennsylvania, offering evidence-based care in a supportive and affirming environment.
About the Author:
Dr. Nick Flower
You Might Also Like These:
My Kid Has Anxiety? How Can I Tell?
Parents know their kids. Their favorite colors, their interests, their dislikes. However, identifying how their children are feeling is not always straight forward. Kids are
“Ridiculous!!!” Using Humor as a Tool to Combat OCD, Phobias and Core Fears
Wait, what?!!! You say poking fun at fear can make me feel better? Well first off, let’s get something straight…OCD is not funny. It’s about
“What Is My Gut Telling Me?” Part Two: How OCD Hijacks Your Gut Feelings
As we learned in the last post, the mind and gut communicate with each other. The connection between our brain and our gut is essential