Gregory John Onderko, DO

Psychiatry, Neurology and Addiction Medicine
Saint Petersburg, FL 33711
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Patients’ Perspective

  • Trusted diagnosis

About Gregory John Onderko DO

Gregory John Onderko, DO is a health care provider primarily located in Saint Petersburg, FL. He has 36 years of experience. His specialties include Psychiatry, Neurology and Addiction Medicine.


Suncoast Center For Community Mental Health 4024 Central Ave Saint Petersburg, FL 33711


Dr. Gregory John Onderko has the following 3 specialties

Specialty Expertise

Dr. Gregory John Onderko has the following 12 areas of expertise

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


36 Years Experience

Medical College Of Pennsylvania


Des Moines University College Of Osteopathic Medicine

Graduated in 1986

Dr. Gregory John Onderko Accepts the Following Insurance

  • Aetna HMO
  • Aetna Managed Choice POS Open Access
  • Aetna Signature Administrators PPO
  • BCBS Blue Card PPO
  • BCBS FL Blue Choice
  • BCBS Florida myBlue
  • Florida Blue BlueCare HMO
  • Florida Blue BlueOptions
  • Florida Blue BlueSelect
  • Florida Blue SimplyBlue
  • Humana Choice POS
  • Humana ChoiceCare Network PPO
  • Humana HMO
  • Humana National POS
  • Humana Preferred PPO

More about Dr. Gregory John Onderko

Dr. Onderko graduated from the Des Moines University College of Osteopathic Medicine in 1986. He works in Saint Petersburg, FL and specializes in Psychiatry, Neurology and Addiction Medicine. Dr. Onderko is affiliated with St Anthony's Hospital.

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