Welcoming new patients 4.9/5 average patient rating

Psychiatrist in Hicksville, NY

Looking for a psychiatrist in Hicksville? Conscientia Health sees patients at 100 Duffy Ave, Suite 510, Hicksville, NY 11801, and by telehealth across Nassau County. Our clinicians provide psychiatric evaluations, medication management and treatment plans for depression, anxiety, ADHD, bipolar disorder and PTSD. Call 1 (877) 803-5342 to schedule a visit.

Cozy beige wingback chair and ottoman beside a wicker lamp and a wooden cabinet

“Best Psychiatrist”by patient ratings on Google Reviews

Address
100 Duffy Ave, Suite 510, Hicksville, NY 11801
Hours
7am–10pm daily
Visits
In-person + telehealth
Serving
Hicksville and nearby Jericho, Syosset, Plainview, Bethpage, Westbury and Levittown

As featured in

Mario Lopez and Conscientia Health founder - Dr Sim discussing mental health awareness during an interview

Mario Lopez on Conscientia Health

“Awesome approach to Mental Healthcare, Conscientia Health.”

– Mario Lopez

Watch Mario Lopez and Dr. Simbiat Adighije, founder of Conscientia Health, talk about millennials, anxiety and the future of AI in mental healthcare.

What we treat

What does a psychiatrist in Hicksville treat?

A psychiatrist is a medical professional who diagnoses and treats mental health conditions and can prescribe and monitor medication. From Suite 510 on Duffy Avenue, our Hicksville team begins with a full medical and psychological evaluation, explains the diagnosis and brings medication, therapy and primary care together in one plan. Central Nassau families juggle work, school activities and long drives, so treatment is planned to fit around them and adjusted as you go.

Depression

Evidence-based depression care that starts with listening, then combines medication management and therapy where they help.Depression treatment in Hicksville →

Anxiety

When worry starts shaping your choices, we help you understand the pattern and build a plan to calm it.Anxiety treatment in Hicksville →

ADHD treatment

Treatment for trouble focusing, restlessness and missed deadlines, adjusted step by step as you see what works.ADHD treatment in Hicksville →

ADHD testing

Structured ADHD testing for children, teens and adults, so you know whether ADHD or something else explains the symptoms.ADHD testing in Hicksville →

Bipolar disorder

Care for mood swings between highs and lows, built around steady follow-up and a plan you understand.Bipolar care in Hicksville →

PTSD & trauma

A safe, collaborative approach to trauma symptoms, so past events take up less space in the present.PTSD treatment in Hicksville →

Grief counseling

Compassionate support through bereavement and loss, helping you cope with sadness, guilt or numbness in your own time.Grief counseling in Hicksville →

Suicide prevention

Universal screening and safety planning under the Zero Suicide framework, with crisis patients seen within 24–72 hours.Suicide prevention in Hicksville →

Primary care

Preventive care and chronic disease management, so your physical and mental health are looked after together.Primary care in Hicksville →

In crisis? Call or text 988 (Suicide & Crisis Lifeline) or call 911 now.

Conscientia Health office therapy room with a dark sofa, patterned armchair and window

Honored as “Best Psychiatrist”

Based on patient ratings on Google Reviews (PR Newswire, Jan 2026). Read the release

Why Conscientia in Hicksville

Why choose us as your psychiatrist in Hicksville, NY?

Our office is in Suite 510 at 100 Duffy Avenue in Hicksville, in the Town of Oyster Bay. Book an in-person visit or a secure video appointment, and call us any day from 7am–10pm. We see patients from Jericho, Syosset, Plainview, Bethpage, Westbury and Levittown.

4.9/5Average patient ratingThousands of reviews

Most majorInsurance plans acceptedPlus private pay & superbills

7 daysEvenings & weekendsOpen early until late, every day

60–80%Shorter wait timesSame/next-day when available

How it works

How do I start psychiatric care in Hicksville?

Book your visit

Book online or call 1 (877) 803-5342, then choose a visit on Duffy Avenue or a secure video session.

A careful evaluation

You describe what has been going on in your own words; your clinician reviews your history and talks through possible diagnoses with you.

Plan & follow-up

Together you agree on a plan, and scheduled follow-ups track progress so adjustments happen early.

Black laptop and a black stethoscope on a pale grey desk, seen from above

Can I see a psychiatrist by telehealth in Hicksville?

Yes. Hicksville patients can see a psychiatrist by secure video from home, and in-person appointments on Duffy Avenue are available whenever you want them.

Our providers

Who will be my psychiatrist in Hicksville?

Our Hicksville team includes psychiatrists and psychiatric nurse practitioners. Call us and we will match you with the clinician who fits your needs.

Dr. Simbiat Adighije PMHNP, PHD, MBBS

Dr. Simbiat Adighije

PMHNP, PhD, MBBS · Founder

Dr. Seth Thompson

MD

Dr. Brian Still

Dr. Brian Still

MD

Dr kevin lemaire

Dr. Kevin Jean Lemaire

DO

Dr. Sandhya Praveen

Sandhya Praveen

PMHNP-BC

Mujidat Yusuf

Mujidat Yusuf

APRN, PMHNP-BC

Insurance

Major commercial plans accepted, verified at booking.

  • Aetna logo
  • Horizon Blue Cross Blue Shield logo
  • Optum logo
  • Oxford Health Plans logo
  • UMR logo
  • UnitedHealthcare logo
  • Empire BlueCross BlueShield logo
  • BlueCross BlueShield logo
  • Cigna Healthcare logo
  • Wellfleet logo
  • Meritain Health logo

Private pay (call for rates) is also available, and if we don’t take your plan we can provide a superbill for out-of-network reimbursement.

FAQ

Psychiatrist in Hicksville, NY: frequently asked questions

Can’t find your answer? Our phone team is available 7am–10pm daily.

Where is Conscientia Health’s psychiatry office in Hicksville, NY?

Our Hicksville office is at 100 Duffy Ave, Suite 510, Hicksville, NY 11801. Visits are in person or by secure video. Call 1 (877) 803-5342, 7am–10pm daily.

Our Hicksville clinicians treat depression, anxiety, ADHD, bipolar disorder, PTSD and grief, and also offer ADHD testing, suicide prevention care and primary care. Medication is considered as part of a wider plan.

Expect a conversation rather than a test. Your clinician asks about your current symptoms, how long they have lasted and how they affect daily life, then reviews your physical health, medications and family history. You finish with a working diagnosis and an agreed first step.

Yes. We prescribe only when medication fits your plan, explain the benefits and side effects in plain language, and schedule regular check-ins to fine-tune treatment.

Yes. Secure video is available for evaluations and follow-ups, and you can switch to visits on Duffy Avenue at any time.

Call 1 (877) 803-5342 or email info@conscientiahealth.com for the next opening on Duffy Avenue. When available, we offer same-day and next-day appointments.

Insurance, nearby towns and booking

Yes, we accept major commercial plans, verified at booking, including Aetna, Blue Cross Blue Shield (All States), Anthem/Empire Blue Cross Blue Shield, Horizon Blue Cross Blue Shield, Cigna (All States), UnitedHealthcare, Oxford Health Plans, Optum, UMR, Wellfleet and Meritain Health. Private pay is also available, and if we don’t take your plan we can provide a superbill for out-of-network reimbursement. Before your first visit, please confirm your benefits with your insurer.

Yes. We welcome patients from Jericho, Syosset, Plainview, Bethpage, Westbury and Levittown, in person or by telehealth.

Click Book Now, call 1 (877) 803-5342 (open 7am–10pm daily) or email info@conscientiahealth.com. A brief intake comes first. Our team will then match you with a psychiatric clinician in Hicksville.

Call 911 or call or text 988 (Suicide & Crisis Lifeline) immediately if you or someone else is at risk. For ongoing care, our suicide prevention service follows the Zero Suicide framework.

Visit us

Where is the Hicksville office?

Conscientia Health
100 Duffy Ave, Suite 510
Hicksville, NY 11801

Getting to the office

  • Suite 510, 100 Duffy Avenue, Hicksville, NY 11801.
  • Prefer not to travel? Every visit type can also be booked as a secure video appointment.
  • Get directions on Google Maps

Nearby communities we serve

  • Jericho
  • Syosset
  • Plainview
  • Bethpage
  • Westbury
  • Levittown

Looking for another office? See Conscientia Health in New York or all locations, or visit the Conscientia Health home page.

Conscientia Health Integrated Care reception sign: Primary Care & Mental Healthcare, whole-person care under one roof

Ready to book a psychiatrist in Hicksville?

We welcome new patients from Hicksville and the surrounding Nassau County towns. Visit Duffy Avenue or start by video.

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