Primary Care Doctor, General Practitioner
34 years of experience
License & Identifications

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).

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Specialties & Research

  • He has special expertise in 2 areas:
  • Flu (Human Influenza)
  • Holistic Health

Education & Awards

Dr. Oei graduated from Westfalische-Wilhelms-University Of Munster Faculty Of Medicine.


Dr. Oei has 2 hospital affiliations:

  • East Valley Hospital Medical Center 
  • St. Bernardine Medical Center 


  • Spanish
  • German
  • Indonesian
  • Malay

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Additional Information
Dr. Joseph T Hwat L Oei MD is a male General Practitioner, has 34 years of experience and practices in General Practice.
Where does Dr. Joseph T. Oei practice?
Dr. Joseph Oei has 2 office locations.
Dr. Joseph Oei practices General Practice near Duarte, CA.
Additional practice locations include: La Habra Heights, CA.
See Duarte Primary Care Doctors.