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A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).

Learn more about Dr. Percival Tiongson:

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Specialties & Research

Dr. Percival Tiongson, MD is board certified in Psychiatry.

  • He has special expertise in 7 areas:
  • Attention Deficit Disorder (ADD) / Attention Deficit Hyperactivity Disorder (ADHD)
  • Bipolar Disorder / Manic Depressive Disorder
  • Depression
  • Depressive Disorder
  • Insomnia
  • Schizophrenia
  • Sleep Disorders

Education & Awards

Dr. Tiongson graduated from University Of Santo Tomas, Manila.


Dr. Tiongson has 1 hospital affiliations:

  • Chester Mental Health Center 

> > > > Dr. Percival Tiongson, MD

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Additional Information
Dr. Percival Pelayo Tiongson MD is a male Psychiatrist, has 44 years of experience and practices in Psychiatry.
Where does Dr. Percival P. Tiongson practice?
Dr. Percival Tiongson has 1 office location.
Dr. Percival Tiongson practices Psychiatry near Saint Louis, MO.
See Saint Louis Psychiatrists.