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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).

Patient Reviews

Patient comments (2)

The overall average patient rating of Dr. Liem Oei is Excellent. Dr. Oei has been reviewed by 14 patients who have provided 2 comments. The rating is 5 out of 5 stars.

Patient Ratings
Ease of Appointment 5.0
Promptness 5.0
Courteous Staff 5.0
Accurate Diagnosis 5.0
Bedside Manner 5.0
Spends Time with Me 5.0
Follows Up After Visit 5.0

Specialties & Research

Dr. Liem Oei, MD is board certified in Internal Medicine and Nephrology.

  • He has special expertise in 15 areas:
  • Diabetes
  • Gynecology
  • Kidney Disease (Glomerulonephritis)
  • Kidney Transplant (Renal Transplant)
  • Nephrology
  • Neurology
  • Neurosurgery
  • Occupational Therapy
  • Pediatrics
  • Physical Therapy Modalities
  • Preventive Medicine
  • Psychiatry
  • Pulmonology
  • Rheumatology
  • Women's Health

Education & Awards

Dr. Oei graduated from Universite Catholique De Louvain, Brussels. He has 1 awards.

Compassionate Doctor Recognition (2014)


Dr. Oei has 32 hospital affiliations:

  • Siouxland Surgery Center Lp 
  • Mercy Medical Center-Sioux City 


  • Indonesian
  • Dutch

> > > > Dr. Liem Oei, MD

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Additional Information
Dr. Liem Som Oei MD is a male Internist, has 41 years of experience and practices in Internal Medicine and Nephrology.
Where does Dr. Liem S. Oei practice?
Dr. Liem Oei has 1 office location.
Dr. Liem Oei practices Internal Medicine and Nephrology near Sioux City, IA.
See Sioux City Internists and Sioux City Nephrologists.