Pain Management in Vista, CA
Decadron and PRP injections, ketamine therapy, and physician-led chronic pain care.
Living With Chronic Pain Is Not Living — Let's Change That
Pain that never goes away changes everything. It affects how you sleep, how you work, how you relate to the people you love, and how you see your own future. You probably tried things that don't work. You may have been told to just manage it, live with it, or that nothing more can be done. You may have been handed prescription after prescription without anyone actually trying to understand the source of your pain.
At Oasis Medical Group in Vista, California, Dr. Moasis, MD, and his team take a different approach to pain management. Instead of masking symptoms with medication and sending you on your way, Dr. Moasis and his team takes the time to understand the root cause of your pain — and then builds a personalized, evidence-based treatment plan designed to actually reduce it.
You deserve to live without constant pain. That is not a luxury — it is a basic necessity of life. And it is exactly what we work towards with every pain management patient who walks through Oasis Medical Group doors in Vista, North County San Diego.
What Is Pain Management?
Pain management is the medical specialty focused on evaluating, diagnosing, and treating acute and chronic pain conditions. It encompasses a broad range of approaches — from targeted injections and regenerative medicine to medication management, lifestyle interventions, and integrated care coordination.
Chronic pain is defined as pain lasting longer than three months. It affects an estimated 50 million adults in the United States and is one of the leading causes of disability, lost productivity, and reduced quality of life. Despite how common it is, chronic pain remains one of the most undertreated conditions in medicine — largely because it is complex, personal, and does not show up neatly on a scan or lab result.
At Oasis, pain management is not a one-size-fits-all protocol. Dr. Moasis and his team evaluate each patient individually — considering the type, location, duration, and triggers of their pain alongside their overall health picture — to design a treatment approach that makes sense for their specific situation.
Conditions We Treat
Dr. Moasis and his team manages a wide range of acute and chronic pain conditions including:
- Joint pain — Knees, hips, shoulders, wrists, and ankles
- Back pain — Lower back, mid-back, and thoracic spine pain
- Neck pain — Cervical spine issues, muscle tension, nerve involvement
- Sciatica — Radiating pain from the lower back down one or both legs
- Arthritis — Osteoarthritis and inflammatory arthritis pain management
- Tendinosis & tendinitis — Chronic tendon pain in shoulders, elbows, knees, and heels
- Bursitis — Inflammation of the fluid-filled sacs cushioning joints
- Muscle pain & fibromyalgia — Widespread musculoskeletal pain and fatigue
- Neuropathic pain — Nerve-related burning, tingling, or shooting pain
- Headaches & migraines — Chronic headache management and prevention
- Post-injury pain — Ongoing pain following sports injuries, accidents, or procedures
- Inflammation-related pain — Systemic inflammation contributing to pain across multiple areas
If you have been living with pain that no one has been able to adequately address — schedule an appointment. There are more options than you may have been told.
Our Pain Management Treatments
At Oasis Medical Group we offer multiple evidence-based treatment modalities for pain — often combining approaches for maximum effectiveness.
Decadron Injections (Corticosteroid Injections)
Decadron — also known as dexamethasone — is a powerful corticosteroid injection that targets inflammation directly at the source of pain. It is one of the most effective treatments available for joint pain, bursitis, tendinosis, sciatica, and inflammatory pain conditions. The procedure is performed in-office in minutes, with most patients experiencing significant relief within 24–72 hours. There is no downtime and no recovery period. Many patients describe it as one of the most impactful treatments they have ever received for chronic pain.
PRP Pain Injections (Platelet-Rich Plasma)
PRP therapy uses your own blood's natural healing properties to repair damaged tissue and reduce pain. A small amount of blood is drawn, processed to concentrate the platelets and growth factors, and then injected directly into the area of pain or injury. PRP stimulates tissue regeneration — addressing the underlying cause of pain rather than simply reducing inflammation temporarily. It is particularly effective for chronic tendon injuries, joint degeneration, sports injuries, and conditions that have not responded well to corticosteroids alone.
Learn more →Ketamine Therapy for Chronic Pain
For patients with complex chronic pain conditions — particularly neuropathic pain, fibromyalgia, or pain that has not responded to conventional treatments — ketamine therapy offers a powerful alternative. Ketamine works on NMDA receptors in the central nervous system to interrupt the pain signaling pathways that perpetuate chronic pain. Under close physician supervision at Oasis, ketamine is administered safely and monitored throughout your treatment course.
Learn more →Medication Management
When appropriate, Dr. Moasis and his team prescribes and carefully manages pain medications as part of a comprehensive treatment plan. This includes anti-inflammatory medications, muscle relaxants, neuropathic pain agents, and other non-opioid options. Medication management at Oasis is always part of a broader treatment strategy — not a standalone solution.
Lifestyle & Integrative Interventions
Dr. Moasis and his team incorporates evidence-based lifestyle recommendations into every pain management plan including targeted exercise guidance, anti-inflammatory nutrition strategies, sleep optimization, and stress reduction techniques — all of which have documented impact on chronic pain outcomes.
How Pain Management Works at Oasis
Step 1 — Comprehensive Pain Evaluation
Your first appointment begins with a thorough evaluation of your pain history — when it started, what makes it better or worse, what treatments you have already tried, and how it is affecting your daily life. Dr. Moasis and his team performs a physical examination and reviews any relevant imaging or previous records you bring.
Step 2 — Diagnosis & Root Cause Analysis
Dr. Moasis and his team works to identify the underlying cause of your pain — not just the symptom. This may involve ordering labs, imaging referrals, or additional diagnostic testing depending on your situation.
Step 3 — Personalized Treatment Plan
Based on your evaluation, Dr. Moasis and his team build a treatment plan tailored to your specific pain type, location, severity, and health history. This plan may combine injection therapy, regenerative medicine, medication management, and lifestyle interventions.
Step 4 — In-Office Procedures
Many pain treatments at Oasis are performed right in the office with no need for a hospital visit or surgical facility. Decadron injections and PRP procedures are quick, minimally invasive, and completed within a single appointment.
Step 5 — Follow-Up & Adjustment
Pain management is an ongoing process. Dr. Moasis and his team schedule regular follow-ups to assess your response to treatment, adjust your plan as needed, and track your progress toward reduced pain and improved function.
Why Choose Oasis Medical Group for Pain Management in Vista
Physician-Led Care Every Visit
Every pain management appointment at Oasis is with Dr. Moasis and his team directly. You get the full attention of a board-certified internal medicine physician — not a technician or mid-level provider — every single time.
Multiple Treatment Options Under One Roof
From corticosteroid injections and PRP to ketamine therapy and medication management — Oasis offers a comprehensive range of pain treatments in one convenient Vista location. No need to travel across San Diego County to see multiple specialists.
In-Office Procedures — No Hospital Required
Decadron injections and PRP are performed right here in our Vista office. Most procedures take less than 30 minutes with no downtime and no recovery period. You can drive yourself home and return to normal activities the same day.
Integrated Primary Care & Pain Management
Because Oasis is a full-service internal medicine practice, your pain management is integrated with your overall health care. Dr. Moasis and his team considers your full health picture — including medications, chronic conditions, and lifestyle factors — when designing your pain treatment plan.
Accepting Insurance & Cash-Pay Patients
We accept most major PPO insurance plans and Medicare. Affordable cash-pay options are available for patients without insurance coverage.
Conveniently Located in Vista, CA
Serving patients from Vista, Oceanside, Carlsbad, San Marcos, Escondido, Fallbrook, Encinitas, and all of North County San Diego.
What to Expect at Your First Pain Management Visit
Your first pain management consultation with Dr. Moasis and his team typically runs 45–60 minutes. Come prepared with:
- A description of your pain — location, type, duration, and severity
- Any previous imaging — X-rays, MRI, or ultrasound results
- A list of treatments you have already tried and how they worked
- Your current medications and any known allergies
- Your insurance card or cash-pay preference
Dr. Moasis and his team will listen fully before making any recommendations. You will leave with a clear diagnosis or working hypothesis, a treatment plan you understand, and a follow-up scheduled. No vague advice, no dismissiveness, and no feeling like you wasted your time.
Frequently Asked Questions
Most patients experience noticeable pain relief within 24–72 hours of a Decadron injection. Some feel improvement the same day. The duration of relief varies by patient and condition — typically lasting several weeks to several months. Dr. Moasis and his team will discuss realistic expectations based on your specific situation.
The number of PRP treatments depends on the severity of your condition and your response to treatment. Many patients see significant improvement after one to three sessions. Dr. Moasis and his team evaluate your progress after each treatment and recommends additional sessions only when clinically appropriate.
No. Pain management at Oasis is not centered around opioid prescribing. Our approach focuses on addressing the root cause of pain through injections, regenerative medicine, and appropriate non-opioid medications. When opioids are considered, it is as part of a carefully monitored comprehensive plan — not a first-line solution.
Yes. Most patients return to normal activities immediately after Decadron or PRP injections. Dr. Moasis and his team may recommend avoiding strenuous activity for 24–48 hours after PRP specifically, but most day-to-day activities are fine immediately.
Coverage depends on your specific plan and the treatment involved. Most PPO plans and Medicare cover physician office visits and many injection procedures. Dr. Moasis and his team can help verify your benefits before your appointment. Cash-pay options are available for procedures not covered by insurance.
Stop Managing Pain. Start Treating It.
Same-day appointments available. Physician-led pain management in Vista, CA — in-office procedures, no hospital required.
- 906 Sycamore Ave, Suite 201, Vista, CA 92081
- Monday–Friday 8:30 AM–5:00 PM

