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Neurologist (brain, nervous system)
13 years of experience
Accepting new patients
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 (3)

The overall average patient rating of Dr. William Baek is Excellent. Dr. Baek has been reviewed by 13 patients who have provided 3 comments. The rating is 4.5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.4
Promptness 4.6
Courteous Staff 4.5
Accurate Diagnosis 3.7
Bedside Manner 3.8
Spends Time with Me 4.0
Follows Up After Visit 3.5

Specialties & Research

Dr. William Baek, MD is board certified in Neurology.

  • He has special expertise in 7 areas:
  • Alzheimer's Disease
  • Epilepsy
  • Hemifacial Spasm
  • Migraine Disorders
  • Multiple Sclerosis (MS)
  • Muscle Spasticity
  • Myotonic Dystrophy

Education & Awards

Dr. Baek graduated from Seoul National University. He has 2 awards.

Patients' Choice Award (2015)
On-Time Doctor Award (2015)


Dr. Baek has 3 hospital affiliations:

  • Pomona Valley Hospital Medical Center 
  • Kaiser Permanente Fontana Medical Center 
  • Fontana Medical Center 


  • Korean
  • German
  • Spanish
  • Japanese
  • English

> > > > Dr. William Baek, MD

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Additional Information
Dr. William S Baek MD is a male Neurologist, has 13 years of experience and practices in Neurology.
Where does Dr. William S. Baek practice?
Dr. William Baek has 2 office locations.
Dr. William Baek practices Neurology near Upland, CA.
Additional practice locations include: Ontario, CA.
See Upland Neurologists.