Same-Day Appointments · No Waitlist

Same-Day Suboxone
Treatment in Vista, CA

Private, physician-led, judgment-free MAT. Take the first step today — we'll make it as simple and respectful as possible.

What is (MAT) Medication-Assisted Treatment?

MAT combines FDA-approved medication — most commonly Suboxone (buprenorphine/naloxone) — with supportive medical care to treat opioid use disorder. It's the gold standard, evidence-based approach proven to reduce cravings, ease withdrawal, and help people rebuild their lives.

How Suboxone works

Suboxone safely occupies opioid receptors in the brain, eliminating cravings and withdrawal without producing a high. Most patients feel stable within hours of their first dose.

Why patients choose Oasis

Same-Day, No Waitlist

Call in the morning, start treatment today.

Private & Discreet

Physician-owned clinic. Your care stays between us.

Judgment-Free

We treat you as a person — never as a label.

PPO & Medicare

Insurance accepted. Cash-pay membership available.

Physician-Led

Direct care from Dr. Moasis and his team — no rotating staff.

Flexible Scheduling

Built around your life — work, family, recovery.

Ready when you are.

One phone call. One private appointment. One clear path forward.

760-691-1901

Confidential · Same-day · PPO & Medicare accepted

Ready to Experience Healthcare the Way It Should Be?

New patients welcome. Same-day appointments available. A physician who actually listens — right here in Vista, CA.

  • 906 Sycamore Ave, Suite 201, Vista, CA 92081
  • Monday–Friday 8:30 AM–5:00 PM

What our patients say

5.0 average · 74+ Google reviews

"We had the most incredible experience with Dr Moasis. I've never met anybody so kind and considerate and professional — so grateful to be in his practice."

anthony frescura
Google Review · 3 weeks ago

"Dr. Moasis and his team are truly a blessing. I recently moved to San Marcos and needed a PCP closer to home. Dr. Moasis and his team truly cares for his patients and is amazing at explaining things in a way that is easy to understand. Definitely recommend!!"

Nick Gonzales
Google Review · 2 months ago

"AMAZING DOCTOR! He's very attentive and carries great energy to the conversation."

Alejandro Cobian
Google Review · a month ago

"So attentive and patient! :)"

Tiana DeMarco
Google Review · a week ago