Psychiatrist
in Gresham, OR
At Pacific Phoenix Psychiatry and TMS, our dedicated team provides access to a compassionate psychiatrist in Gresham, OR, and the surrounding communities. We believe in a patient-centered approach, combining evidence-based therapies with personalized care to support your mental wellness journey. Our goal is to create a judgment-free environment where you feel heard, understood, and empowered to achieve lasting mental health.
What Is Psychiatrist in Gresham, OR?
Medication Management
Our providers offer thorough medication management to ensure your psychiatric medications are effective and tailored to your specific needs. We review your history, monitor progress, and make adjustments as needed to optimize your well-being and minimize side effects.
Transcranial Magnetic Stimulation (TMS)
We provide Transcranial Magnetic Stimulation (TMS), a non-invasive, FDA-cleared treatment for depression and OCD. This innovative therapy uses magnetic pulses to stimulate nerve cells in the brain, offering hope when other treatments have not been successful.
IM Ketamine Therapy
For individuals with treatment-resistant conditions, we offer Intramuscular (IM) Ketamine Therapy. Administered in a safe, monitored setting, this treatment can provide rapid relief from symptoms of severe depression and PTSD by helping the brain form new neural connections.
Spravato™ Treatment
Spravato™ is an FDA-approved esketamine nasal spray for treatment-resistant depression. Administered under professional supervision in our office, it can offer rapid symptom reduction for those who have not found relief with traditional antidepressants.
GeneSight® Testing
To personalize the process of finding the right medication, we utilize GeneSight® testing. This simple genetic test analyzes how your genes may affect your response to certain psychiatric medications, allowing for more targeted and effective treatment choices.
Military and Veteran Services
Our team is proud to offer specialized psychiatric care for military members, veterans, and their families. We understand the unique challenges faced by the military community and provide targeted treatments for conditions like PTSD, anxiety, and depression.
Trauma-Focused Therapy
We provide trauma-focused therapy to help individuals process and overcome the lasting effects of traumatic events. Our compassionate approach integrates therapeutic techniques to address symptoms of PTSD, anxiety, and depression, fostering healing and resilience.
Meet Our Compassionate Psychiatry Team

Our team includes board-certified psychiatrists and skilled physicians, alongside our dedicated physician assistants. Together, they bring a wealth of experience in modern psychiatric care, from medication management to advanced treatments like TMS and IM Ketamine. We work collaboratively to ensure every patient receives comprehensive, personalized, and empathetic support at Pacific Phoenix Psychiatry and TMS.

Our Psychiatrist Process
Comprehensive Initial Assessment
Your journey begins with a thorough evaluation where we listen to your story, understand your symptoms, and discuss your mental health goals. This comprehensive assessment is the foundation of your personalized care plan.
Personalized Treatment Planning
Based on your assessment, we develop a tailored treatment plan that may include medication management, Cognitive Behavioral Therapy (CBT), or innovative treatments like TMS or IM Ketamine Therapy. We will discuss all options with you, ensuring you are an active partner in your care.
Implementing Your Care Plan
With a clear plan in place, you will begin your treatment. Whether it involves starting a new medication, attending sessions for trauma-focused therapy, or beginning a course of TMS, our team will guide and support you at every step.
Ongoing Monitoring and Management
Your progress is important to us. We schedule regular follow-up appointments to monitor your response to treatment, manage any side effects, and make any necessary adjustments to your care plan to ensure its continued effectiveness.
Collaborative Follow-Up Care
Mental wellness is a long-term partnership. We provide continuous, collaborative follow-up care to support your sustained well-being and help you navigate any future challenges that may arise.

Who Benefits from Psychiatrist?
At Pacific Phoenix Psychiatry and TMS, our dedicated team provides access to a compassionate psychiatrist in Gresham, OR, and the surrounding communities. We believe in a patient-centered approach, combining evidence-based therapies with personalized care to support your mental wellness journey. Our goal is to create a judgment-free environment where you feel heard, understood, and empowered to achieve lasting mental health.
Conditions We Treat
- Depression
- Anxiety Disorders
- Post-Traumatic Stress Disorder (PTSD)
- Obsessive-Compulsive Disorder (OCD)
- Treatment-Resistant Depression

What Better Can Look Like
Dr.Trenkle was not only super friendly and approachable but she made me feel comfortable coming to her and expressing my needs. She helped me map out a plan to help reach my mental health goals and gave me multiple courses of action. She explained things in detail making sure I understood and asked me what I wanted and what my goals were instead of just telling me what she decided like others ive seen through out my life.

Such a great experience at Pacific Phoenix. I always felt supported by the staff. The nurse and staff were great at answering all my questions. My favorite thing about my experience was always feeling like I was being heard and cared for.

This was my first appointment with Dr. Trenkle, I was a bit nervous and not sure what to expect, but in the end was very satisfied with my experience. The office and atmosphere is very calming from first walking in the door, very clean and the staff was friendly. Her all around aurora gave calming and attentive. Definitely looking forward to future visits with her.

I had an incredibly positive experience with Tate Landers at Pacific Phoenix Psychiatry and TMS. From the very beginning, he created a calm, welcoming environment where I felt genuinely heard and understood. He took his time with me, listened carefully to my concerns, and asked thoughtful questions that showed he truly wanted to understand what I was going through, not just check boxes or rush to conclusions.

Dr. Trenkle and her team (specifically Isabella) are the BEST! The office environment doesn't feel sterile like your typical doctor's office, and everyone is professional and friendly. This was my first time seeing a psychiatrist and I have seen positive results. I've recommended this office to friends, especially those looking for female practitioners.

Every person that I came into contact with at Pacific Phoenix was incredibly kind and helped me feel at ease. Treatment was a breeze and I feel so much better now! Special shout out must be given to Tielor. Tielor was the tech for most of my appointments and we had such a good time just chatting away. I felt comfortable and like I was visiting with a friend, which made the daily appointments easier.

I was in need of help with meds and decided to call and see what their availability was like. The receptionist Alyssa was so kind and let me know their soonest availability and walked me through the process of the paperwork. She was incredibly helpful during a very vulnerable time. The provider Brooke really listened to me and what was happening in my life and came up with a solid care plan for me.

Cost of Psychiatrist in Gresham, OR
At Pacific Phoenix Psychiatry and TMS, our dedicated team provides access to a compassionate psychiatrist in Gresham, OR, and the surrounding communities. We believe in a patient-centered approach, combining evidence-based therapies with personalized care to support your mental wellness journey. Our goal is to create a judgment-free environment where you feel heard, understood, and empowered to achieve lasting mental health.
FAQ About Psychiatrist in Gresham, OR
What is the difference between a psychiatrist and a psychologist?
A psychiatrist is a medical doctor (MD) who can diagnose illnesses, manage treatment, and prescribe medications. A psychologist typically has a doctoral degree (PhD or PsyD) and provides psychotherapy or counseling but usually cannot prescribe medication.
How long will my psychiatric treatment take?
The duration of treatment is highly individualized and depends on your specific condition, goals, and response to your care plan. We focus on creating a sustainable, long-term plan for wellness, and we will adapt your care as your needs evolve.
Do I need a referral to see a psychiatrist?
While some insurance plans may require a referral, many do not. We welcome new patients to contact our office directly to schedule an appointment, and our staff can help you navigate any insurance requirements.
What happens if standard medications don't work for me?
For patients with treatment-resistant conditions, we offer several advanced options beyond standard medications. These include Transcranial Magnetic Stimulation (TMS), IM Ketamine Therapy, and Spravato™, which are designed to provide relief when other treatments have failed.