Partners in Wellness is happy to work closely with dietitians who specialize in eating disorders.
For more information about Erica Branz and Tammy Cook, our on-site dietitians, please visit the following links.

Licensed Clinical Social Worker 

Anxiety Specialist​​
Please send all new patient inquiries to

Licensed Clinical Psychologist,​
Certified Eating Disorders Specialist

Joining Partners in Wellness in January 2021!

Jack Jacobsen, LCSW

Cherie L. Massmann, MA, LPC, NCC

Jack Jacobsen, LCSW is a therapist specializing in the treatment of Obsessive Compulsive Disorder (OCD), Body Focused Repetitive Behaviors (BFRB) and other anxiety disorders. He is devoted to the use of evidence-based treatments and specializes in the use of Exposure and Response Prevention (ERP) and Acceptance and Commitment Therapy (ACT). These therapies, which fall under the umbrella of the Cognitive Behavioral Therapies (CBT), are considered gold standard treatments and the most effective therapies to date for helping clients reclaim their lives from the grip of anxiety.

Laura Bumberry, PsyD, CEDS

Cherie Massmann is a cognitive-behaviorally trained therapist with over 15 years of experience treating binge eating disorder, anorexia nervosa, bulimia, depression and anxiety in adults and adolescents.  She also holds certification for family based treatment.

Cherie is a founding partner in Partners in Wellness, which specializes in evidence-based treatment approaches to eating disorders, depression and anxiety disorders.

Prior to starting Partners in Wellness, Cherie served as staff therapist for Webster Wellness Professionals/McCallum Place. She led the Greenlight Weight Management Program, helping individuals achieve long-term healthy weight loss. Additionally, as a certified Family Based therapist, Cherie guided patients and their families towards recovery from anorexia and bulimia.

Prior to joining Webster Wellness, Cherie was a staff therapist at Washington University School of Medicine, working in the Psychiatry and Internal Medicine Departments. She played a key role in several National Institute of Health (NIH) studies, serving as designated clinician on the following:

  • Treatment Options for Type 2 Diabetes in Adolescents and Youth (TODAY study)
  • Comprehensive Maintenance Program to Achieve Sustained Success (COMPASS), a treatment of childhood obesity
  • Comprehensive Assessment of Long-Term Effects of Reducing Intake of Energy (CALERIE study). In addition, she worked with patients diagnosed with Type II and gestational diabetes.

Cherie is a Licensed Professional Counselor (LPC) and National Certified Counselor (NCC). She earned her master's degree in counseling from Webster University, and she holds bachelor's degree in psychology from Missouri State University. She is passionate about helping her clients improve their overall quality of life.

Working together as colleagues, we realized we had a shared passion for learning and providing quality, evidence-based treatment for eating disorders including CBT, DBT and FBT.  

We founded Partner in Wellness in St. Louis based on our shared values of family (yours and ours), balance, quality of life and adventure. We strive to be a resource for the community through education, creativity, and quality care.  An eating disorder can be a barrier that stands between a person and the life they truly desire. We are passionately committed to treating the disorder and removing the barriers so our clients can pursue their passions. 

CBT Therapist​, FBT Therapist​


Dr. Bumberry is a licensed clinical psychologist specializing in eating disorders treatment for children, adolescents and adults.  She utilizes therapies proven to be effective, including Cognitive Behavior Therapy (CBT), Dialectical Behavior Therapy (DBT), and Family-Based Treatment (FBT), also known as the Maudsley Approach. Dr. Bumberry also has training in Acceptance & Commitment Therapy (ACT) and Prolonged Exposure Therapy, an evidence-based treatment for Post-Traumatic Stress Disorder. 

Dr. Bumberry is a Certified Eating Disorders Specialist (CEDS) through IAEDP, and one of few certified Family Based Treatment providers in the state of Missouri. She is also a proud member of the St. Louis Adolescent Eating Disorders Coalition, a group of physicians, psychiatrists, therapists and dietitians working together to enhance eating disorders care in St. Louis.  

Dr. Bumberry previously provided specialized outpatient eating disorder treatment at Webster Wellness Professionals, the outpatient division of McCallum Place. She completed her post-doctoral residency at Saint Louis Behavioral Medicine Institute's Eating Disorders Program and Psychology and Religion Program, as well as an APA accredited pre-doctoral internship at the Center for Behavioral Medicine in Kansas City.  She earned her doctorate in Clinical Psychology at Xavier University with an emphasis on child and adolescent psychology