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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. Denny John:

View the full profile to get information on:

  1. Qualifications
  2. What's important to you

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Patient Reviews

Patient comments (12)

The overall average patient rating of Dr. Denny John, Neurologist is Good. Dr. John has been reviewed by 42 patients who have provided 12 comments. The rating is 4 out of 5 stars.

Patient Ratings
Ease of Appointment 3.9
Promptness 4.0
Courteous Staff 4.3
Accurate Diagnosis 3.9
Bedside Manner 3.8
Spends Time with Me 4.1
Follows Up After Visit 4.1

Specialties & Research

Dr. Denny John, MD is board certified in Neurology and Sleep Medicine.

  • He has special expertise in 9 areas:
  • Concussion
  • Dementia
  • Epilepsy / seizures
  • Migraines/Headache
  • Multiple Sclerosis (MS)
  • Parkinson syndrome
  • Stroke
  • autoimmune neuromuscular disease

Education & Awards

Dr. John graduated from Kasturba Medical College Manipal.


Dr. John has 3 hospital affiliations:

  • Frankford Hospital 
  • Frankford Hospital - Bucks County Campus 
  • Frankford Hospital - Torresdale Campus 


  • Arabic
  • French
  • Hindi
  • Malayalam
  • Malay

> > > > Dr. Denny John, MD

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Additional Information
Dr. Denny John MD is a male Neurologist, has 19 years of experience and practices in Neurology and Sleep Medicine.
Where does Dr. Denny John practice?
Dr. Denny John has 1 office location.
Dr. Denny John practices Neurology and Sleep Medicine near Quakertown, PA.
See Quakertown Neurologists and Quakertown Psychiatrists.