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Diana Deister

Adult, Adolescent, Child Psychiatrist, MD
ADHD-Developmental disorders-Obsessive compulsive disorder (OCD)-Insomnia & sleep issues-Mood disorders-Psychiatric Medication and Nutritional Management-

See Diana's Details for:

Many health insurance plans reimburse 50-80% of session fees with out-of-network therapists. Learn if your plan qualifies.

AboutSpecialtiesLocationsInsurance & Fees

Professional statement

Diana Deister, MD, MS, is a child, adolescent, adult and family psychiatrist providing telepsychiatry visits in Massachusetts for patients of all ages. Many of Dr. Deister’s clients come in with mood, anxiety, attention, or sleep problems. She has advanced training from the Walsh Research Institute in using nutrition (vitamins, minerals, and other supplements) to treat psychiatric and developmental disorders.

Dr. Deister strives to provide a comforting atmosphere in which patients can discuss their problems fully. She addresses the biological, psychological, and environmental aspects of mental health to provide a “one-stop-shop” for busy professionals and students. This integrated approach to mental health acknowledges the real connections between body, mind, family, and communities.

Dr. Deister’s initial evaluation is 120 min to allow adequate time to assess the problem and discuss the initial treatment approach. When possible, children and parents will be seen separately for parts of the session; for adult patients, family involvement in visits is welcomed. Lab tests are recommended for clients who wish to use nutritional approaches as part of the treatment plan; these tests are often covered by insurance.

Dr. Deister received her B.S. in Chemistry from Caltech, and her M.S. in Biology (neuroscience) from the U. of Houston. She completed medical school and psychiatry residency at University of Texas Health Science Center at San Antonio and her child and adolescent psychiatry fellowship at Brown University. She worked for a decade seeing outpatients at Boston Children’s Hospital in the Adolescent Substance use and Addictions Program and the Developmental Medicine Center before leaving in 2023 to start her private practice, Bountiful Mental Health. She is board certified in Psychiatry, Child and Adolescent Psychiatry, and Addiction Medicine.

Message to clients

I enjoy using my strong science background to create a developmental understanding of the factors which cause and perpetuate mental health problems for my clients, then we work together to address them using therapy, nutrition, medications, or other treatments as needed. My favorite therapy approaches include motivational interviewing to increase motivation for behavioral change, exposure and response prevention (ERP) for OCD, and family therapy.

Work and Education

Boston Children's Hospital, Psychiatrist

Brown University / Bradley Hospital, Training, Child and Adolescent Psychiatry Fellowship, Co-chief Fellow, 2013
U of Texas Health Science Center San Antonio, Training, Psychiatry Residency, Assistant Chief Resident, 2011
U of Texas Health Science Center San Antonio, MD, Psychiatry, 2007
University of Houston, MS, Biology / Neuroscience, 2004
California Institute of Technology, BS, Chemistry, 1998


Massachusetts: 256262




ADHD - Skill-building and support around organizational challenges, distracted attention, procrastination; building and maintaining healthy routines and structure

Developmental disorders - Support coping with and understanding a child’s unique strengths and challenges; strengthening social and communication skills; parent training and coaching

Obsessive compulsive disorder (OCD) - Reducing unwanted intrusive thoughts and rituals by gradually building comfort and confidence facing difficult fears, thoughts, and emotions

Insomnia & sleep issues - Exploring ways to improve sleep patterns, develop healthy sleep hygiene, master relaxation techniques, manage stressors, reduce worrying, and address insomnia

Mood disorders - Clinical depression, persistent depression, bipolar disorder, and other mood disorders that cause disturbances in the client's mood, causing mood swings, restless sleep, and/or elevated mood

Psychiatric Medication and Nutritional Management - Optimizing medication use to treat psychiatric conditions. Evaluation and treatment with nutrients along with or instead of medications. Metabolic treatment with ketogenic diets.


  • Adults (24+)
  • Children (<12)
  • Couples
  • Families
  • Parents
  • Seniors (65+)
  • Teenagers (13-18)
  • Young adults (18-24)

Locations & Hours


Diana Deister is not in-network with any insurances.

Read about the benefits of seeing an out-of-network provider here.

Out-of-pocket fees

  • Individual sessions:$750 (60min)
  • Sliding scale:$200 - $750
  • Initial session:$1500 (120min)
  • Couples sessions:$750 (60min)
  • Family sessions:$750 (60min)
  • Medication management and therapy sessions:$750
  • Med management & supportive therapy $375 (30min)
  • Nutritional treatment and therapy$750 (60min)
  • Nutritional treatment and therapy$375 (30min)

Additional session information

Out-of-network billing options

This provider can support you in getting reimbursement from your insurance company if you are seeking out-of-network reimbursement. Here are the out-of-network billing options they provide:

  • Super billing
Payment options
  • Check
  • Credit Card
Session frequency

Frequency of sessions this provider offers to see clients once you are an established client.

  • Weekly
  • Monthly
  • Every other week
  • Multiple times a week
Therapist's note

In checking with your insurance carrier about allowed amounts, it may help to report the codes that will be billed. You will need to know if you have out of network benefits, any deductible for out of network benefits you must meet, and the dollar reimbursement amount (“allowed amount”) for the following codes:

*Initial Psychiatric Evaluation: 90792

*Monthly Medication Management with Therapy Appointment (30 or 60 min): 99213 or 99214 (depending on complexity) and 90833

*Weekly Therapy/Medication Appointments (30 or 60 min): 99213 or 99214 (depending on complexity) and 90836

The codes 99213, 99214, and 99215 are for medical/psychiatric visits.

The codes 90833 and 90836 are for therapy done during the same visit as a medical/psychiatric visit.

Book a Free Initial Consultation

The practice will call you for a free 10min phone call to discuss your needs and ensure a match!

This provider has no upcoming call times available.