About the Practice
Dr. Trimzi's clinical expertise includes treatment-resistant depression, anxiety, and ADHD. RYAN MSN, PMHNP-BC Kristen Ryan, MSN, PMHNP-BC is a Board Certified Psychiatric Mental Health Nurse Practitioner with over five years of experience in the mental health field.
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Practice Context in IntroTherapy
- • IntroTherapy lists 412 mental health practices in Wilmington. Dr. Mary Diamond is one of them.
- • 1,132 practices statewide in Delaware are tracked in our directory.
- • 105 practices in Delaware list ADHD as a focus area.
- • Typical psychiatrist compensation in Delaware: $200,000 – $350,000 (median $256,000). Source: BLS OEWS, state cost-of-labor adjusted.
Data compiled from U.S. state licensing boards, NPI public registry, and verified practice listings. Mental health is a YMYL topic — we prioritize licensed, verified providers only. Methodology & sources · Updated August 2026.
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Frequently asked questions
Where is Dr. Mary Diamond located?
Dr. Mary Diamond is located at 5163 W Woodmill Dr #13, Wilmington, DE 19808.
What is the phone number for Dr. Mary Diamond?
You can reach Dr. Mary Diamond at (302) 660-7200.
What insurance does Dr. Mary Diamond accept?
Dr. Mary Diamond accepts EmblemHealth. Confirm coverage directly with the practice before your first session.
What does Dr. Mary Diamond specialize in?
Dr. Mary Diamond lists the following clinical focus areas: ADHD, Academic Stress, Anxiety, Childhood Trauma, Depression, Gender Identity, Substance Abuse.
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Dr. Mary Diamond