Golden State Medical Group
Phone: 909-694-4016
Fax: 909-920-3344

Our Providers

Meet Our Medical Team

Thoughtful, coordinated care begins with people who listen, communicate, and work together. Learn more about our medical team and their approach to care.

Dr. Jhujhar Singh, founder and medical directorFounder

Founder · President

Dr. Jhujhar Singh, DO

Family Medicine | Geriatric Medicine | Addiction Medicine

Dr. Singh brings a broad perspective to patient care, with professional experience spanning family medicine, the health needs of older adults, and addiction medicine. His approach emphasizes treating the whole person, listening carefully, and helping patients and care teams navigate complex health needs with dignity.

In addition to his work with Golden State Medical Group, Dr. Singh serves as Chief Medical Officer at Montclair Hospital Medical Center, San Dimas Community Hospital, and Chino Valley Medical Center. His leadership reflects a commitment to clinical quality, teamwork, and continuity across care settings.

Education & Training

  • Doctor of Osteopathic Medicine — College of Osteopathic Medicine of the Pacific, Western University of Health Sciences
  • Graduated 2006

Clinical Focus & Credentials

  • Family Medicine
  • Geriatric Medicine
  • Addiction Medicine
“

Every patient deserves to be seen as a whole person. My aim is to bring compassion, sound clinical judgment, and coordinated support to each step of the care journey.

Care philosophy
Dr. Mena Hanna, family medicine physician

Physician

Dr. Mena Hanna, MD

Family Medicine

Dr. Mena Hanna is a board-certified Family Medicine physician practicing hospital medicine in Southern California. He is dedicated to providing compassionate, evidence-based care with an emphasis on clear communication, patient advocacy, and individualized treatment. Dr. Hanna believes that exceptional medical care goes beyond treating illness—it means ensuring that patients and their families feel heard, informed, and supported throughout their hospital stay.

Outside of medicine, Dr. Hanna enjoys spending quality time with his wife and three children, exploring new places, and pursuing his interest in technology and innovation.

Education

  • American University of Antigua College of Medicine

Clinical Focus

  • Family Medicine
  • Preventive and comprehensive primary care
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Good care starts with listening. I believe patients do best when they feel respected, understand their choices, and have a trusted partner in their health.

Care philosophy
Dr. Wenbai Zhou, internal medicine physician

Physician

Dr. Wenbai Zhou, MD

Internal Medicine

Dr. Wenbai Zhou, MD, is an Internal Medicine physician affiliated with Arrowhead Regional Medical Center and San Dimas Community Hospital in California. Dr. Zhou is dedicated to providing comprehensive medical care to adult patients, focusing on the diagnosis, treatment, and management of a wide range of medical conditions.

Education & Training

  • Shanghai Medical College, Fudan University
  • Residency — Brookdale Hospital Medical Center

Clinical Focus

  • Internal Medicine
  • Adult health and coordinated care
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Wellness is supported by consistency, trust, and attention to the details that matter to each person. I value care that helps patients feel informed and supported over time.

Care philosophy
Andrea Glover, nurse practitioner

Advanced Practice Provider

Andrea Glover, NP

Nurse Practitioner

Andrea Glover is a nurse practitioner whose approach emphasizes listening to patients, helping them understand their care, and collaborating with physicians and care teams to support wellness and continuity.

Practice Focus

  • Patient-centered communication
  • Collaboration with physicians and care teams

Care Approach

  • Clear, supportive communication
  • Coordinated, patient-centered care
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Care is strongest when patients feel heard and supported. I want every interaction to help people feel more confident about their health and the next step in their care.

Care philosophy

Coordinated Care

Working Together for Better Outcomes

Our team emphasizes communication and continuity across hospital and residential care settings.

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