What patients are saying
Overall rating
5.00
Average wait time
5.00
Bedside manner
5.00
“Dr. Guardiani was warm, thoughtful, and incredibly easy to talk to. I never felt rushed or reduced to a checklist. She took the time to understand what I had been experiencing, explained the medication-management process in a clear and reassuring way, and made the entire visit feel collaborative.
I left feeling heard, respected, and genuinely hopeful about the next steps <3”
ERLess than 1 month ago
About Diane Guardiani
Focus areas
Anxiety
Depression
Psychiatric Medication Review
Attention-Deficit / Hyperactivity Disorder (ADHD)
Medication Review
Psychiatry Consultation
Bipolar Disorder
Post-Traumatic Stress Disorder (PTSD) Counseling
Clientele seen
Young adults (18-24)
Individuals
Adults (25-64)
Seniors (65+)
Treatment approaches
Cognitive Behavioral (CBT)
Strength-Based
Motivational Interviewing
Intervention
Trauma Focused
Interpersonal
Identity
Gender
FemaleEthnicity
White
Languages spoken
English
Getting to know Diane Guardiani
Welcome. I'm Diane Guardiani, a board-certified psychiatric nurse practitioner (PMHNP-BC) with a Doctor of Nursing Practice and more than 25 years of experience helping adults find relief from depression, anxiety, ADHD, bipolar disorder, PTSD, and related conditions.
What patients tell me they appreciate most is that I actually listen. I take the time to understand who you are, what you're navigating, and what you want your life to look like. From there, we build a treatment plan together — grounded in the best available evidence, tailored to your goals, and adjusted as we learn what works for you.
What you can expect from working with me:
— Clear, straightforward explanations of every medication and recommendation
— Honest, ongoing collaboration about what's working, what isn't, and what to try next
— Genuine respect for your autonomy, your pace, and your values
I work with adults and older adults across a wide range of concerns — whether you're starting treatment for the first time, seeking a fresh perspective on medications you've been on for years, or looking for a provider who will truly partner with you.
If that sounds like the kind of care you're looking for, I'd be honored to be your provider.
— Dr. Diane
What should a new client know about working with you?
I take a thoughtful, unhurried approach to medication.
Medication can be a powerful tool, but it's not always the right first step — and even when it is, it works best alongside good sleep, meaningful connection, therapy, and the other pieces of a full life. I'll be honest with you about what medications can and can't do.
I welcome questions.
If a recommendation doesn't make sense to you, ask. If a medication isn't working, tell me. If you're skeptical about starting something new, let's talk about it. Good care depends on honest conversation, and I'd rather have the hard conversations than pretend they're not there.
I believe in your autonomy.
My job is to give you the best clinical guidance I can. Yours is to make decisions about your own care. You always have the final say — and you'll never be pushed toward a medication or plan you're not comfortable with.
I coordinate care.
If you're already seeing a therapist, I'll want to communicate with them (with your permission) so we're working toward the same goals. If you're not, I can help you find one — for most people, medication and therapy work best together.
Between appointments, you can reach me through the patient portal for questions or concerns. I aim to respond within one business day, and for urgent situations we'll always have a plan in place.
What is your typical process for working with clients?
First appointment (60 minutes). We'll start with a comprehensive conversation about your history — current symptoms, prior treatment, medical background, family history, and what you're hoping to accomplish. If medication makes sense, we'll discuss the options together. If a different approach makes more sense, I'll tell you. You'll leave with a clear plan and understood next steps.
Follow-up appointments (20 minutes). When starting or adjusting a medication, we typically meet every 2–4 weeks so we can monitor closely and make changes quickly if needed. Once you're stable, we'll shift to every 1–3 months. Each visit includes real time to talk — how you're actually feeling, what's changed, any side effects, and what to try next.
Between appointments. You can message me through the patient portal for medication questions or non-urgent concerns. I respond within one business day. For urgent situations, we'll have a plan in place from your first visit.
Ongoing collaboration. Treatment isn't static. We'll periodically reassess whether your current plan is still the right one — whether that means staying the course, adjusting doses, changing medications, or eventually tapering off. Your goals, not the medication list, drive the plan.
Coordination with your care team. With your permission, I'll stay in touch with your therapist, primary care doctor, and any other providers involved in your care so we're all working toward the same outcomes.
Is this doctor in your insurance network?
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In-network insurances
Aetna
BlueCross BlueShield
Cigna
More information on payments and coverage
We are in network with most major commercial insurers. We will provide an estimate of any co-pay before your first session. We also offer competitive self-pay rates.
Office location
Diane Guardiani, APRN, PMHNP also offers online video visits for patients
Education and background
Practice names
Board certifications
- American Academy of Nurse Practitioners National Certification Board
Education and training
- University of Massachusetts Amherst, Doctor of Psychiatric Mental Health Nursing
- University of Massachusetts Amherst, Master's in Adult Nurse Practitioner
NPI number
1316957285
Patient reviews
All reviews have been submitted by patients after interacting with the practice.
Overall rating
5.00
Wait time
5.00
Bedside manner
5.00
Your trust is our top concern, so providers can't pay to alter or remove reviews. We also don't publish reviews that contain any private patient health information. Learn more here
1 review
Most relevant
Dr. Guardiani was warm, thoughtful, and incredibly easy to talk to. I never felt rushed or reduced to a checklist. She took the time to understand what I had been experiencing, explained the medication-management process in a clear and reassuring way, and made the entire visit feel collaborative.
I left feeling heard, respected, and genuinely hopeful about the next steps <3
Less than 1 month agoER
How soon can I make an appointment with Diane Guardiani?
Generally, Diane Guardiani has appointments available on Zocdoc within 1 week. You can see Diane Guardiani's earliest availability on Zocdoc and make an appointment online.
Is Diane Guardiani accepting new patients?
Diane Guardiani generally accepts new patients on Zocdoc. You can see Diane Guardiani's earliest availability on Zocdoc and schedule an appointment online.
Does Diane Guardiani accept my insurance?
Choose your insurance plan to verify if Diane Guardiani is in-network.
Can I make an appointment with Diane Guardiani online?
Yes, you can make an appointment online with Diane Guardiani using Zocdoc. It’s simple, secure, and free.
What practice does Diane Guardiani work with?
Diane Guardiani works with Northline Psychiatry.
Where is Diane Guardiani's office located?
Diane Guardiani has 2 office locations, including in Mashantucket and Niantic, view full addresses on Diane Guardiani's profile.
Which board certifications does Diane Guardiani have?
Diane Guardiani is certified by American Academy of Nurse Practitioners National Certification Board.
What are common reasons for patients to see Diane Guardiani?
Diane Guardiani frequently sees patients for Anxiety, Attention-Deficit / Hyperactivity Disorder (ADHD), Depression, Psychiatry Consultation, and Sleep Problems. You can see other visit reasons for Diane Guardiani on their profile.
What languages does Diane Guardiani speak?
Diane Guardiani speaks English.
How do patients rate Diane Guardiani in reviews?
1 patients have reviewed Diane Guardiani. The overall rating for this doctor is 5/5. They have a 5/5 rating for bedside manner and a 5/5 rating for wait time. You can read individual reviews and ratings on their profile.