TMS Therapy in Vista, CA
FDA-approved, non-invasive brain stimulation for treatment-resistant depression.
When Antidepressants Do Not Work — There Is Still Hope
If you have tried antidepressant after antidepressant and still don't feel like yourself — you are not alone and you are not out of options. Millions of people living with depression/anxiety don't respond adequately to medication. For years that meant accepting a life diminished by a condition that never fully lifted. Today, it does not have to be that way.
The Solution: Transcranial Magnetic Stimulation — TMS therapy — is changing the lives of patients who had nearly given up on feeling better. It is FDA-approved, non-invasive, medication-free, and backed by decades of clinical research. And it is now available right here at Oasis Medical Group in Vista, California under the direct care of Dr. Kareem Moasis, MD, and his team.
If you have struggled with depression/anxiety, Major Depressive Disorder, ADHD, OCD, PTSD, or other mental health conditions tried multiple medications, and are still searching for real relief — TMS therapy may be exactly what you needed.
What Is TMS Therapy?
Transcranial Magnetic Stimulation is a non-invasive brain stimulation therapy that uses precisely targeted magnetic pulses to activate specific regions of the brain associated with mood regulation. It is performed in a clinical office setting, requires no anesthesia, no sedation, and no recovery time — patients drive themselves to and from every session.
The science behind TMS is rooted in decades of neuroscience research. Depression/anxiety is associated with reduced activity in the left prefrontal cortex — the region of the brain responsible for mood, motivation, and emotional regulation. In patients with treatment-resistant depression, this area is measurably underactive. TMS delivers focused magnetic pulses to this specific region, stimulating neural activity and gradually restoring more normal brain function over the course of treatment.
The magnetic fields used in TMS are the same type and strength as those used in standard MRI machines — making it an extremely safe and well-tolerated procedure. The FDA approved TMS for the treatment of major depressive disorder in 2008, and it has since been approved for obsessive-compulsive disorder and smoking cessation as well. Thousands of clinical studies and over a decade of real-world use confirm its safety and effectiveness.
Who Is TMS Therapy For?
TMS therapy is specifically designed for patients who have not found adequate relief from antidepressant medications. You may be a good candidate for TMS if:
- ✓You have been diagnosed with major depressive disorder
- ✓You have tried one or more antidepressants without achieving adequate relief
- ✓You have experienced intolerable side effects from antidepressant medications — weight gain, sexual dysfunction, emotional blunting, fatigue, or insomnia
- ✓You prefer a non-medication approach to treating depression
- ✓You have treatment-resistant depression — meaning your depression has not responded to multiple medication trials
- ✓You are looking for a treatment that does not impair cognition, memory, or daily function
- ✓You want to reduce or eliminate your reliance on antidepressant medications over time
TMS is also being studied and used for anxiety disorders, PTSD, OCD, and chronic pain — conditions Dr. Moasis and his team can discuss with you during your evaluation to determine whether TMS may be appropriate for your specific situation.
What Conditions Does TMS Treat?
At Oasis Medical Group TMS therapy is offered for the following conditions:
Major Depressive Disorder (MDD)
The primary FDA-approved indication for TMS. Highly effective for patients who have not responded adequately to antidepressant therapy. Clinical trials show response rates of 50–60% and remission rates of 30–35% — significantly higher than additional medication trials in treatment-resistant populations.
Treatment-Resistant Depression
Defined as depression that has not responded to at least two adequate trials of antidepressant medication. TMS is considered the standard next step before more invasive options like electroconvulsive therapy (ECT).
Anxiety
Emerging evidence supports TMS for generalized anxiety disorder and anxiety co-occurring with depression. Many patients report significant anxiety reduction alongside mood improvement during TMS treatment.
OCD (Obsessive-Compulsive Disorder)
FDA-approved for OCD using deep TMS protocols. Dr. Moasis and his team will evaluate whether this application is appropriate for your situation.
PTSD
Growing clinical evidence supports TMS as an effective treatment for post-traumatic stress disorder, particularly in patients who have not responded adequately to medication or therapy alone.
How TMS Therapy Works at Oasis
Step 1 — Initial TMS Evaluation
Dr. Moasis and his team conduct a comprehensive psychiatric and medical evaluation to determine whether TMS is appropriate for you. This includes reviewing your depression history, previous medication trials, current health status, and any contraindications to TMS such as metal implants in or near the head.
Step 2 — Treatment Mapping
Before your first TMS session, Dr. Moasis and his team determine the precise location on your scalp where the magnetic coil will be positioned and calibrates the stimulation intensity specifically for your brain. This personalized mapping ensures the treatment targets exactly the right area at exactly the right strength for maximum effectiveness.
Step 3 — TMS Treatment Sessions
A standard TMS course consists of 36 sessions delivered over approximately 6–9 weeks — typically five sessions per week for the first six weeks followed by a taper period. Each session lasts approximately 20–40 minutes. You sit comfortably in a chair, fully awake, and can return to your normal activities immediately afterward including driving and working. During the session you will hear a clicking sound and feel a light tapping sensation on your scalp where the magnetic pulses are delivered. Most patients find this entirely tolerable and many read, listen to music, or simply relax during treatment.
Step 4 — Progress Monitoring
Dr. Moasis and his team monitor your response throughout the treatment course using standardized depression rating scales and regular check-ins. Many patients begin noticing improvements in mood, energy, sleep, and motivation within the first two to three weeks of treatment.
Step 5 — Completion & Maintenance
At the end of your TMS course Dr. Moasis and his team conduct a full evaluation of your response and discusses your ongoing care plan. Many patients maintain their improvement for months to years following a successful TMS course. If symptoms begin to return, a shorter retreatment course is often highly effective.
What Does TMS Feel Like?
One of the most common questions patients have before starting TMS is what the actual experience feels like. The honest answer is — much more comfortable than most people expect.
During each session you sit in a chair similar to a dentist's chair with a magnetic coil positioned against your scalp. When the pulses are delivered you hear a series of clicking sounds and feel a rhythmic tapping sensation on your head — sometimes described as a woodpecker-like feeling. The sensation is unusual but not painful for the vast majority of patients.
Some patients experience mild scalp discomfort or a headache during their first few sessions as they adjust to the treatment. This typically diminishes significantly after the first week. Dr. Moasis and his team discuss managing any discomfort and adjusts your treatment parameters if needed to ensure your comfort throughout the course.
There is no sedation, no anesthesia, and no recovery period. You walk in, complete your session, and walk out — ready to get on with your day.
TMS vs Antidepressants — Key Differences
Many patients ask how TMS compares to antidepressant medication. Here is a straightforward comparison:
Side Effects
Antidepressants
Well-known systemic side effects — weight gain, sexual dysfunction, emotional blunting, insomnia, nausea, and fatigue.
TMS Therapy
Limited to the treatment site — mild scalp discomfort or a temporary headache — typically resolving within the first week.
Cognitive Effects
Antidepressants
Some cause cognitive dulling or memory issues.
TMS Therapy
No negative cognitive effects — in fact many patients report improved concentration and mental clarity as depression lifts.
Daily Function
Antidepressants
Taken daily and must be maintained continuously.
TMS Therapy
A time-limited course of treatment after which many patients maintain improvement without ongoing intervention.
Time to Effect
Antidepressants
Typically take 4–6 weeks to show meaningful benefit.
TMS Therapy
Many patients begin noticing improvements within 2–3 weeks of starting treatment.
No Systemic Exposure
Antidepressants
Systemic drug exposure throughout the body.
TMS Therapy
Works locally on the brain with no systemic drug exposure — excellent for patients who cannot tolerate medications due to other health conditions or drug interactions.
Why Choose Oasis Medical Group for TMS Therapy in Vista
Physician-Supervised Every Step
TMS at Oasis is not delegated to a technician and forgotten. Dr. Moasis and his team of expert technicians personally oversee your entire treatment course — from initial evaluation and mapping through completion and follow-up care.
Integrated Mental Health Care
Because Oasis is a full-service internal medicine and behavioral health practice, your TMS treatment is integrated with your overall mental health and medical care. If you need medication adjustments, psychotherapy, or management of co-occurring conditions alongside TMS, everything is coordinated in one place.
Same-Day Consultations Available
If you are ready to explore TMS, we want to see you as soon as possible. Same-day and next-day consultations are available for patients interested in TMS evaluation.
Insurance & Cash-Pay Options
TMS therapy is covered by most major PPO insurance plans and Medicare for patients who meet medical necessity criteria — typically requiring documentation of inadequate response to antidepressant medications. Our team will work with your insurance to verify your benefits before you begin. Cash-pay options are also available.
Convenient Vista Location — Serving Encinitas, Fallbrook, and North County San Diego
Oasis Medical Group is located at 906 Sycamore Ave, Suite 201 in Vista — easily accessible from Oceanside, Carlsbad, San Marcos, Escondido, Encinitas, Fallbrook, and all of North County San Diego.
What to Expect at Your TMS Consultation
Your TMS consultation with Dr. Moasis and his team runs approximately 45–60 minutes. He will review your depression history, previous medication trials, current symptoms, and overall health to determine whether TMS is the right treatment for you.
Come prepared with:
- A list of antidepressants and psychiatric medications you have previously tried
- Your current medication list and dosages
- Any previous mental health evaluations or records
- Your insurance information
- Questions — there are no wrong ones
By the end of your consultation you will know whether TMS is appropriate for you, what your treatment course will look like, what your insurance covers, and exactly what to expect. No vague answers, no runaround — just a clear, honest conversation with a physician who is focused on getting you better.
Frequently Asked Questions
Yes — most major PPO insurance plans and Medicare cover TMS therapy for major depressive disorder when medical necessity criteria are met. Criteria typically include documentation of inadequate response to antidepressant medications. Our team will verify your specific benefits before you begin treatment.
Clinical studies show that approximately 50–60% of patients with treatment-resistant depression respond to TMS with meaningful improvement, and approximately 30–35% achieve full remission. These are significantly better outcomes than additional medication trials for this population.
In most cases no. TMS can be performed alongside your current medications. Dr. Moasis and his team will review your medications during your consultation and make specific recommendations based on your situation.
Many patients maintain their improvement for 12 months or longer following a successful TMS course. Studies show that approximately two-thirds of patients who respond to TMS maintain their response at one year. If symptoms return, retreatment is typically highly effective and often requires fewer sessions than the initial course.
Yes. TMS has an excellent safety profile established over more than 15 years of FDA-approved clinical use. The most common side effects are mild scalp discomfort and temporary headache during the first week of treatment. Serious side effects are extremely rare. TMS does not cause memory loss, cognitive impairment, or systemic side effects.
TMS and ECT are both brain stimulation treatments but they are very different. ECT requires general anesthesia, induces a controlled seizure, and carries risks of memory loss and cognitive side effects. TMS requires no anesthesia, does not induce seizures, causes no cognitive side effects, and allows patients to return to normal activities immediately. TMS is typically tried before ECT for treatment-resistant depression.
Ready to Find Out If TMS Is Right for You?
Same-day consultations available. Physician-supervised TMS therapy for depression in Vista, CA.
- 906 Sycamore Ave, Suite 201, Vista, CA 92081
- Monday–Friday 8:30 AM–5:00 PM

