Summary

Dr. Guillermo graduated from the Weill Cornell Medical College,Weill Cornell Medical College in 1995. She works in San Jose, CA and specializes in Psychiatry. Dr. Guillermo is affiliated with Santa Clara Valley Medical Center.

Quick Facts

  • 31 years of experience
  • WEILL CORNELL MEDICAL COLLEGE
  • 1 specialty
  • 11 areas of expertise
  • 1 board certification
  • 1 hospital affiliation
  • 1 office location
  • Female

Office Location

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Dr. Gemma Ganzon Guillermo, MDDr. Cristine Oh, MDSwapnil Khurana, MDDr. Lydia Breen, MD
PsychiatryPsychiatryPsychiatryPsychiatry
Accepts New Patients Accepts New Patients Accepts New Patients
4.6 
31 Years of Experience 5 Years of Experience 17 Years of Experience 28 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available No Virtual Visit Option
Speaks English Speaks English, Hindi Speaks English
San Jose , CASAN JOSE , CASacramento , CASan Francisco , CA
Med School: WEILL CORNELL MEDICAL COLLEGE Med School: University Of Pittsburgh School Of Medicine Med School: St. Mary Mercy Hospital - Livonia, Michigan Med School: University Of Rochester School Of Medicine & Dentistry
Current Profile
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Insurance Plans Accepted by Dr. Gemma Ganzon Guillermo

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Medical Specialties

Dr. Gemma Ganzon Guillermo has the following specialty

Specialty Expertise

Dr. Gemma Ganzon Guillermo has the following 11 areas of expertise

  • Attention Deficit Disorder (ADD) / Attention Deficit Hyperactivity Disorder (ADHD)
  • Attention-Deficit/Hyperactivity Disorder (ADHD)
  • Bipolar Disorder
  • Depression
  • Depressive Disorder
  • Insomnia
  • Mental Illness
  • Mood Disorders
  • Personality Disorder
  • Schizophrenia
  • Sleep Disorders

Certifications, License, & Education

31 Years Experience

MEDICAL LICENSE

Medical Doctor, California, 2026, Active

EDUCATION & TRAINING

Medical School

WEILL CORNELL MEDICAL COLLEGE
Weill Cornell Medical CollegeGraduated in 1995

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Frequently Asked Questions

Where is Dr. Gemma Guillermo's office located?
Dr. Gemma Guillermo's office is located at 751 S Bascom Ave, San Jose, CA, 95128.
Does Dr. Gemma Guillermo accept my insurance?
You can see the insurance plans that Dr. Gemma Guillermo accepts on their Vitals profile.
Is Dr. Gemma Guillermo accepting new patients?
Dr. Gemma Guillermo has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
How can I make an appointment with Dr. Gemma Guillermo?
You can find contact information for Dr. Gemma Guillermo here on Vitals.
Which hospitals is Dr. Gemma Guillermo affiliated with?
Dr. Gemma Guillermo is affiliated with Santa Clara Valley Medical Center.

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