Meet Dr. Pedro Guimares M.D.

Board Certified Psychiatrist in California
  • He has a M.D. degree and Ph.D. (Neurophysiology)

  • Has dedicated over 40 years  of study in Neuro Science

  • Is Board Certified by the American Academy of Neurology and Psychiatry

  • In Recognition of Significant Contributions to Psychiatry Dr. Guimaraes was in 2012 elected to be a Fellow by The American Psychiatric Association

  • Was born in  Brazil and before he came to US he was Associate Professor in Rio de Janeiro; He has been living in US for over 32 years and is a citizen

  • Was Postdoctoral Associate, Department of Neurosurgery, Yale University

  • Has done his Residency in  Psychiatry at the Medical College of Pennsylvania and Yale University Medical School

  • Was Instructor at the Department of Psychiatry, Yale University

  • Clinical Associate Professor at the Department of Psychiatry, University of Vermont and

  • Clinical Assistant  Professor at the Department of Psychiatry, University of Massachusetts

  • He was Medical Director at the Department of Psychiatry, Penobscot Bay Medical Center, Rockport, Maine,

  • Medical Director for the Inpatient Services at the Department of Psychiatry, Maine Medical Center, Portland, Maine, and

  • Attending Psychiatrist, UMass Memorial Medical Group, MA,

  • Has worked as a Psychiatrist in New Zealand, Australia and Germany.

Palm Desert Psychiatry

Meet The Team

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Anthony Whall -PA

Anthony Whall PA-C received his Master's in Medical Science from Nova Southeastern University and has provided psychiatric care in hospitals, in outpatient private practice, and for the Veteran's Administration.  Mr. Whall treats a wide variety of psychiatric conditions, with special interest in substance abuse, depression, and bipolar disorders. Mr. Whall is a member of the Neuroscience Educational Institute, The American Society of Addiction Medicine, and The Psychopharmacology Institute, with a dedication to staying abreast of the latest research and developments in the treatment of psychiatric disorders. Having recently relocated to the Central Coast with his family from West Palm Beach, Florida, Mr. Whall is thrilled to be able to pursue his passion for all things outdoors including motorcycling, mountain biking, hiking, and camping.

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Raquel Ruggiero, PMHNP

Raquel received her Doctor of Nursing practice degree from Loma Linda University. she also earned her BSN from Azusa Pacific University. She worked at a level two trauma hospital in the emergency room for nearly 10 years as both a trauma and psychiatric nurse. She loves to spend time with her family and three dogs. Raquel enjoys photography, botany, and baking.

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Lester Willis -Psychiatric Nurse Practitioner

Lester Willis is a Board-Certified Psychiatric Nurse Practitioner.  He obtained his DNP/PMHNP degree from Brandman University in Irvine, California in 2019.   He specializes in depression, anxiety, mood disorders, and psychotic disorders.  Prior to obtaining his PMHNP, he was an RN in the field of mental health for over 20 years.  He is a proponent of evidence-based care who believes that the patient is the most important member of the healthcare team.  He recently relocated to Katy, Texas, where he enjoys outdoor activities and spending time with his family.

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Carrie Kieta- Office Administrator

Carrie was born and raised in California. She earned her Bachelor's degree in Business Management and certification in Medical billing. She enjoys spending time with her two boys and taking care of her horses.