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Neurological Surgeon, Surgical Specialist
20 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 (7)

The overall average patient rating of Dr. William Loudon is Excellent. Dr. Loudon has been reviewed by 22 patients who have provided 7 comments. The rating is 3.5 out of 4 stars.

Patient Ratings
Ease of Appointment 3.9
Promptness 3.7
Courteous Staff 3.8
Accurate Diagnosis 3.8
Bedside Manner 3.8
Spends Time with Me 3.7
Follows Up After Visit 3.9

Specialties & Research

Dr. William Loudon, MD, PHD is board certified in Neurological Surgery.

  • He has special expertise in 2 areas:
  • Brain Cancer
  • Neurosurgery

Education & Awards

Dr. Loudon graduated from The University of Texas at Houston. He has 4 awards.

Orange County Medical Association’s Physicians of Excellence 2010-2012
Patients' Choice 5th Anniversary Award (2012 - 2013)
Patients' Choice Award (2008 - 2013)
Compassionate Doctor Recognition (2010 - 2013)


Dr. Loudon has 12 hospital affiliations:

  • Hoag Memorial Hospital Presbyterian 
  • Anaheim Memorial Medical Center 


  • German
  • Spanish

> > > > Dr. William Loudon, MD, PHD

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Additional Information
Dr. William G Loudon MD and PHD is a male Neurosurgeon, has 20 years of experience and practices in Neurological Surgery.
Where does Dr. William G. Loudon practice?
Dr. William Loudon has 3 office locations.
Dr. William Loudon practices Neurological Surgery near Orange, CA.
See Orange Neurological Surgeons.