Jillian McNeil APRN, PMHNP-BC
Psychiatric nurse practitioner for adults. ADHD, anxiety and depression, treated inside a testing-first, measurement-based model from the first visit.
Duxbury and telehealth across Massachusetts

Trained Where Rigor Is the Baseline
Jillian McNeil is a board-certified psychiatric mental health nurse practitioner who earned her Master of Science in Nursing at Regis College and completed her clinical training here at Modern Mentality. That matters more than it might sound. Jillian did not train somewhere else and arrive. She learned psychiatry inside our testing-first, measurement-based model from day one, with objective diagnostics, validated outcome tracking at every visit, and a collaborative team reviewing complex cases together.
Her practice centers on the three conditions that bring most adults through our doors: ADHD, anxiety and depression. She pairs a warm, unhurried style with real clinical discipline, building on comprehensive evaluation rather than assumptions, tracking your progress with real data, and adjusting quickly when the numbers and your experience say something needs to change.
Jillian brings a nursing foundation to psychiatric care, which means she treats the whole person: sleep, stress, physical health and life context all belong in the conversation. Patients describe her as someone who listens carefully, explains clearly, and makes the plan feel like a partnership rather than a prescription.
Like every prescriber at Modern Mentality, Jillian works alongside our therapists under one roof, so medication and therapy move in the same direction, informed by the same data.
The best treatment plans are built with patients, not for them. My job is to bring the clinical rigor. Yours is to bring your goals. We meet in the middle, and we measure everything.
Jillian McNeil, APRN, PMHNP-BC
What Jillian Treats
Choose one to read how she approaches it.
ADHD
Thoughtful stimulant and non-stimulant medication management grounded in objective testing. TOVA attention testing and Creyos cognitive data inform both the diagnosis and the read on treatment response, and follow-ups keep dosing matched to the demands of your actual week rather than to a number on a label.
Anxiety
Generalized anxiety, social anxiety and panic, treated against the whole picture: precise medication choices when they are indicated, coordination with our therapy team for the skills side, and GAD-7 tracking at every visit so progress is visible rather than vague.
Depression
Evidence-based treatment with PHQ-9 monitoring at every visit, GeneSight pharmacogenetic testing to inform prescribing when medication selection is unclear, and direct access to NeuroStar TMS through our Duxbury office when medication alone is not enough.
Medication Decisions
Starting medication when nothing has been tried. Simplifying a regimen that has grown over years. A second look at a plan that has stopped working. Every change is made against a score, and when selection is uncertain, GeneSight pharmacogenetic testing informs prescribing so the first choice is more likely to be the right one.
Who Jillian Works Best With
Fit matters. Here is an honest read on both sides of it.
Jillian is probably a good fit if you
- Are an adult with ADHD, anxiety or depression and want a prescriber who evaluates before prescribing
- Want objective testing behind a diagnosis, not a questionnaire and a hunch
- Want to see your progress as a number at every visit, and a plan that changes when the number does
- Want your prescriber and your therapist in the same practice, talking to each other
- Want sleep, stress and physical health treated as part of the picture, not a separate problem
- Have a working calendar and need telehealth that fits inside it
Jillian may not be the right match if you
- Are under 18. Alyssa Plaud Mainelli sees patients from age 10, and our therapists work with adolescents
- Want therapy only, without a prescriber. Sarah Carey, Maria Martinez Calderon and Joe Giallombardo are the people to ask for
- Are in acute crisis and need stabilization rather than outpatient care
Not sure? Our intake team will match you with the right clinician on the team, even if it is not Jillian.
Measured, Explained, Shared
The Evaluation Comes First
No prescription without a real assessment. For ADHD that is a standardized protocol with TOVA and Creyos testing; for anxiety and depression it is a structured interview and validated measures. Then the results are explained in plain language, because a diagnosis you understand is one you can do something with.
Measurement at Every Visit
PHQ-9, GAD-7 and ADHD rating scales at each appointment, and Creyos retesting about every twelve weeks. A score moving the wrong way is acted on that week rather than at the next scheduled visit.
The Whole Person
A nursing foundation means sleep, stress, physical health and the shape of your week are part of every visit. Medication is one lever among several, and it is chosen with the rest of your life in view.
One Team, One Plan
Jillian works alongside the therapists here rather than in parallel with them, so therapy and medication point at the same goals and you are not coordinating your own care or retelling your story at every visit.
From First Contact to a Plan
Most new patients are seen within two weeks.
Request an intake
Online, in about two minutes, or by phone at (781) 803-7757. Tell us what you are looking for; you do not need to have it figured out.
We verify your benefits
Our team reaches out within two business days and checks your insurance before your first visit, so there are no surprises afterward.
The evaluation
Your first appointment is a structured assessment, not a quick prescription visit. For ADHD, objective testing is scheduled as part of the package.
A plan you helped write
You leave with a plan, a timeline and the measures we will track. Every follow-up starts with the score and with what actually happened in your week.
Clinical Background
Duxbury and a Screen
Same evaluation, same measures, same clinician, wherever you are seen.
Start With a Real Evaluation
Jillian is accepting new adult patients for ADHD, anxiety and depression care, in Duxbury and by telehealth across Massachusetts. Booking online takes about two minutes, benefits are verified before your first visit, and most new patients are seen within two weeks.

