Our Professionals
Robert Summerour, MD

Dr. Robert Summerour, M.D., founded the Riverside Psychiatric Medical Group in 1982. He treats adults of all ages and specializes in the management of complex behavioral health problems.

  • Services:
  • Psychiatric Evaluation
  • Ongoing Medication Management
  • Genomic Evaluation
  • Telemedicine Visits - Psychiatric
Antonius "Tony" Brandon, PhD

Antonius “Tony” Brandon, PhD, MS, MFT, has over forty years of clinical experience. He focuses his practice in children and adolescents and incorporates a broad range of therapeutic modalities, including Mindfulness interventions.

  • Services:
  • Psychological Evaluation
  • Psychodynamic Psychotherapy
  • Marital and Family Counseling
  • Behavioral Therapy
Romulus Chelbegean, LMFT PhD

Dr. Romulus Chelbegean, PhD, has a broad range of experience and professional background ranging from Nursing, Pastoral Theology to Counseling. Dr. Chelbegean has over twenty years’ experience and works with people from all walks of life.

  • Services:
  • Psychological Evaluation
  • Psychodynamic Psychotherapy
  • Marital and Family Counseling
  • Behavioral Therapy
Sabrina Friedman, EdD DNP FNP-C PMHCNS-BC

Dr. Friedman has over 25 years’ experience in the fields psychiatric and family practice. She specializes in pediatric and adolescent psychiatric medication treatment and holds dual doctoral degrees in Nursing Practice and Education.

  • Services:
  • Psychiatric Evaluation
  • Ongoing Medication Management
  • Genomic Evaluation
  • General Psychological Assessments
Sukh Khalsa, DNP PM HNP-BC MBA RN MSN PHN

Dr. Khalsa is a board certified psychiatric nurse practitioner with over 25 years of experience in the mental health field. Dr. Khalsa specializes in the fields of mental health, addiction, and the treatment of eating disorders.

  • Services:
  • Psychiatric Evaluation
  • Ongoing Medication Management
  • Genomic Evaluation
  • Telemedicine Visits - Psychiatric
Ronald Offenstein, PhD

Dr. Offenstein, PhD, is a licensed psychologist with more than thirty-five years of experience helping people overcome their past. His specialty includes supporting his patients in learning how to shift their experience of life.

  • Services:
  • Psychological Evaluation
  • Psychodynamic Psychotherapy
  • Marital and Family Counseling
  • Behavioral Therapy
Camille Reineke, PhD

Camille Reineke, PhD, is a licensed Psychologist with more than twenty years’ experience in treating a variety of conditions and age groups. She looks forward to collaborating with you to find health and healing in your life.

  • Services:
  • Psychological Evaluation
  • Psychodynamic Psychotherapy
  • Marital and Family Counseling
  • Behavioral Therapy
Ginger Simonton, PhD LMFT

Dr. Ginger Simonton is a Licensed Marriage and Family Therapist (LMFT) in the State of California. Ginger received her Masters’ of Science in Marriage and Family Therapy from Loma Linda University.

  • Services:
  • Telemedicine Visits - Psychological
  • General Psychological Assessments
  • Individual, Family and Group Therapy as Indicated
  • Cognitive Behavioral Therapy
Yvette Chavez, LMFT

Yvette Chavez has over 20 years of experience in mental health and enjoys working with a diverse population, including children ages five and up, through adults. Yvette’s approach is based on the principles of Cognitive Behavioral Therapy.

  • Services:
  • Psychological Evaluation
  • Psychodynamic Psychotherapy
  • Marital and Family Counseling
  • Behavioral Therapy
Andrea LeNeve, LMFT

Andrea LeNeve has over 35 years’ experience as a Licensed Marriage and Family Therapist. Her are of specialty lies in helping her patients reduce their experience of depression and anxiety, and thrive in everyday life.

  • Services:
  • Psychological Evaluation
  • Psychodynamic Psychotherapy
  • Marital and Family Counseling
  • Behavioral Therapy
Karen Meske, PM HNP-BC RN NP

Karen Meske is a board certified Psychiatric Mental Health Nurse Practitioner with over 21 years of experience as a Registered Nurse and over 14 years’ experience in the fields of mental health, including inpatient psychiatry units.

  • Services:
  • Psychiatric Evaluation
  • Ongoing Medication Management
  • Genomic Evaluation
  • Telemedicine Visits - Psychiatric
Jessica Millan, PM HNP-BC RN NP

Jessica Millan is a board certified Psychiatric Mental Health Nurse Practitioner with a Masters of Science in Nursing. Jessica’s specialty lies in the treatment of chemical dependency and psychiatric care for children through geriatrics.

  • Services:
  • Psychiatric Evaluation
  • Ongoing Medication Management
  • Genomic Evaluation
  • Telemedicine Visits - Psychiatric
Featured Service

Psychiatric Evaluation and Treatment Services

Our psychiatric evaluation, management, and treatment services are designed to ensure optimal therapeutic outcomes from the effectiveness of all prescription medications.

  • Services:
  • Psychiatric Evaluation
  • Ongoing Medication Management
  • Genomic Evaluation
  • Telemedicine Visits - Psychiatric