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, MD
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Dr. Gemma Ganzon Guillermo, MDDr. John Whittier, MDDr. Matthew May, MDYael Moskiowitz, PMHNP
PsychiatryPsychiatryPsychiatryPsychiatry
Accepts New Patients Accepts New Patients Accepts New Patients
31 Years of Experience 9 Years of Experience 24 Years of Experience 2 Years of Experience
No Virtual Visit Option Virtual Visit Available No Virtual Visit Option Virtual Visit Available
Speaks English Speaks English Speaks English
San Jose , CAJacksonville , FLPalo Alto , CASan Jose , CA
Med School: WEILL CORNELL MEDICAL COLLEGE Med School: University of Vermont College of Medicine Med School: Stanford University Medical Center Med School: University of Arizona
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.
Which hospitals is Dr. Gemma Guillermo affiliated with?
Dr. Gemma Guillermo is affiliated with Santa Clara Valley Medical Center.
How can I make an appointment with Dr. Gemma Guillermo?
You can find contact information for Dr. Gemma Guillermo here on Vitals.
Does Dr. Gemma Guillermo accept virtual/telehealth appointments?
Dr. Gemma Guillermo has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
Does Dr. Gemma Guillermo accept my insurance?
You can see the insurance plans that Dr. Gemma Guillermo accepts on their Vitals profile.

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