Expert care for bipolar, mood and anxiety disorders.
A private, physician-scientist led psychiatry practice in Woodside, California, offering comprehensive evaluation, direct access to your psychiatrist, and treatment built from the whole picture — not the last prescription.
Areas of focus
The right diagnosis is the first step in your treatment.
Bipolar disorders
Bipolar I and II, cyclothymia, and the recurring depressions that hide a bipolar course — including people told they were “treatment-resistant.”
Learn more →Depression & mood disorders
Major depression, persistent low mood, and depression that has not responded to several medication trials.
Learn more →Anxiety disorders
Generalized anxiety, panic, social anxiety, and the anxiety that travels with — and often precedes — a mood disorder.
Learn more →Insomnia & sleep
Chronic insomnia, disrupted sleep rhythms, and the sleep problems that drive — and are driven by — mood and anxiety disorders.
Learn more →ADHD
Adult attention-deficit/hyperactivity disorder, including attention difficulties that are hard to separate from mood, anxiety or sleep.
Learn more →Tinnitus
Chronic tinnitus and the anxiety, low mood and sleeplessness that travel with it — including advanced therapy with neuromodulation.
Learn more →Ways to work together.
Ongoing psychiatric care
Continuing care over time — evaluation, medication management, psychotherapy and regular follow-up with one physician.
One-time consultation
A single, thorough evaluation that ends with a clear formulation and recommendations.
Ongoing consultation
Periodic review alongside your existing psychiatrist or physician, who continues to manage your day-to-day care.
Collaboration with current providers
I work with your therapist, psychiatrist or primary-care physician rather than replacing them.
Family member consultation
Guidance for relatives who want to understand a loved one’s condition and how best to help.
Psychiatry the way it should be practiced.
A private practice built around access and continuity — the conditions under which careful psychiatry is possible.
Direct access
You reach me directly — not a call center or a portal queue.
A small practice
This is a small private practice, so each person receives sustained attention across the course of care.
Continuity
One physician holds the whole story over time and coordinates with your therapist, primary-care physician and, when you wish, your family.
From first call to a plan that holds.
A brief first call
A short conversation to understand what brings you here, answer practical questions and confirm the practice is a good fit.
Comprehensive evaluation
A 90-minute initial evaluation that reconstructs the course of your symptoms over time — sleep, energy, mood, attention — together with prior records and, where helpful, family input.
Formulation and plan
A clear explanation of what is driving the picture, the diagnosis it best fits, and a plan that ranks the options and their trade-offs.
Ongoing, measured care
Regular follow-up with structured measures, so improvement is tracked rather than assumed — and the plan changes when the data say it should.
The full range, chosen carefully.
Diagnostic evaluation
Including second opinions when a diagnosis has never quite fit or treatment has not held.
02Medication management
Precise, conservative pharmacology with attention to what was tried, at what dose, for how long, and what happened.
03Psychotherapy
Offered alongside medication — and sometimes instead of it.
04Image-guided TMS
Advanced, personalized transcranial magnetic stimulation with targeting informed by imaging.
He has a reputation of diagnosing and successfully treating poorly diagnosed and previously considered “treatment-refractory” patients.
In addition to medication management and treatment, he offers options including psychotherapy, and advanced personalized image-guided transcranial magnetic stimulation.
Dr. Pellionisz is a Psychiatrist who specializes in the diagnosis and treatment of Mood and Anxiety Disorders, with particular expertise in Bipolar Disorders. He has a special interest in treating bipolar disorder and has been treating these patients at UCSF’s Bipolar Clinic and inpatient facility for the past 4 years.
Regions covered
I serve patients throughout the Bay Area, including the communities of Woodside, Menlo Park, Palo Alto, Cupertino, Los Gatos, Los Altos, Mountain View, Portola Valley, Atherton, Sunnyvale, and San Jose. Visits are in person at my office in Woodside, or by video for patients located in California.
Begin with a conversation.
Requesting a consultation is confidential and carries no obligation. Tell me a little about what brings you here, and I will take it from there.