Meet our team

Dr. Greenfield
Assistant Clinical Professor of Psychiatry,
University of Connecticut School of Medicine

Dr. Greenfield is the founder and clinical director of The Center for Internet and Technology Addiction and Assistant Clinical Professor of Psychiatry at the University of Connecticut School of Medicine where he teaches Behavioral Addiction Medicine, Sexual Medicine, and supervises residents in psychiatry. Dr. Greenfield is also the Medical Director of The Greenfield Recovery Center, a residential retreat center for the treatment of Internet and technology addictions. He is a leading authority on Internet and technology addiction and author of numerous articles/book chapters and the book Virtual Addiction which in 1999 rang an early warning regarding the world’s growing Internet Addiction problem. Dr. Greenfield’s recent work is focused on the neurobiology of compulsive Internet, Smartphone, and screen use. He is credited with popularizing the variable reinforcement (slot machine model) of behavioral addictions and the dopamine-behavioral addiction connection.

Dr. Greenfield participates with the national and international psychiatric community by sharing his expertise through lectures, research, and various publications. He holds advanced training and board certifications in Addictions, Addiction Medicine, and Clinical Psychopharmacology.
Dr. Greenfield lectures throughout the world, and has appeared on CNN, Dr. Oz, Good Morning America, The Today Show, Fox News, ESPN, NPR and HBO. He’s been featured in U.S. News and World Report, Newsweek, People, Time, Washington Post, Wall Street Journal, and The Economist.

Dr. Greenfield is a member of the American Society for Addiction Medicine, The Sexual Medicine Society of North America, and the American Society for the Advancement of Pharmacotherapy, APA, and is Past-President of CPA; he sits on numerous academic and editorial boards.

Licensure / Certification / Qualifications:

• Assistant Clinical Professor, University of Connecticut Medical School
• Connecticut Licensed Psychologist (#001399)
• New York Licensed Psychologist (#009628)
• Connecticut Licensed Marriage & Family Therapist (#000558)
• Certificate of Proficiency in Addictions, APA College of Professional Psychology (#AD001519)
• National Register of Health Service Providers in Psychology (#40025)
• Certificate of Professional Qualification in Psychology (#3443)
• Massachusetts Licensed Clinical Psychologist (application pending)

Legal Services:
  • Clinical Member, CATSO-Connecticut Association of Treatment for Sex Offenders

Dr. Greenfield earned his PhD in Counseling Psychology, including a minor in Marriage, Family and Child Therapy, from Texas Tech University. He earned his MA in College and Community Counseling from New York University and his BA in Psychology from Ramapo College of New Jersey. Dr. Greenfield is trained in Eye Movement Desensitization and Reprocessing (EMDR) I & II as well as Energy Medicine and Energy Healing from the Institute for Healing Arts and Sciences in Bloomfield, Connecticut.

To learn more about Dr. Greenfield and his approach to Internet and technology addiction treatment, visit our Press Room.

If you are from the media or press and you are interested in a possible interview with Dr. Greenfield or one of his staff, please indicate so in an email to

If your media inquiry is urgent in nature, please call our office at 860-561-8727 and leave a detailed message telling us about your request.

Melissa Rahming

Melissa Rahming is a therapist at The Center for Internet and Technology Addiction. She is state certified as an addictions counselor (CADC) and is in the process of completing her requirements to become an LADC. She is also a substance abuse provider for the Department of Transportation. Rahming has worked in many levels of care in the addiction world including detox, residential, intensive outpatient and inpatient since working in the addiction field since 1997. She also has an extensive work history with dual-diagnosed individuals and prides herself with the knowledge that this “hands on” experience has provided her with over the years.

Through indirect and direct personal experience of what addiction can do to a family, Rahming was inspired to study the biology of addiction at Tunxis Community College where she obtained her Associate’s Degree (DARC), and then completed her Bachelor’s at Post University in the Human Services field. She continues to maximize her exposure to associations and organizations that provide support to struggling individuals and their families. Rahming works to heal the family as a unit by helping the family develop healthy boundaries and gain a better understanding of addiction as well as recovery. Currently studying for her Master’s at Albertus Magnus College, she hopes to increase her knowledge of counseling techniques and the latest research. Her work with clients is not limited to substance abuse issues, but also covers other process addictions such as gambling, gaming, Internet and technology, and pornography.  

Sheila Hageman, MFA

Sheila Hageman, MFA is the Communications Director at The Center for Internet and Technology Addiction. She is a women’s issues and lifestyle writer, a professor of writing, and an author. Hageman received her MFA in Creative Writing from Hunter College, CUNY, where she also graduated as valedictorian with her BA in the Thomas Hunter Honors Program and English. She is a nationally certified Yoga instructor and teaches writing at Post University.

Tell Us How We Can Help

If you have questions about Internet addiction or would like more information on technology use and abuse, please contact us.