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 (5)

The overall average patient rating of Dr. Prem Subramanian, Neuro-ophthalmologist is Good. Dr. Subramanian has been reviewed by 14 patients who have provided 5 comments. The rating is 3.5 out of 5 stars.

Patient Ratings
Ease of Appointment 3.8
Promptness 3.4
Courteous Staff 3.9
Accurate Diagnosis 4.1
Bedside Manner 3.4
Spends Time with Me 3.6
Follows Up After Visit 3.5

Specialties & Research

Dr. Prem Subramanian, MD, PHD is board certified in Ophthalmology.

  • He has special expertise in 15 areas:
  • Cranial Nerve Diseases
  • Graves Disease Thyroid Eye Disease
  • Graves Ophthalmopathy
  • Intracranial Hypertension
  • Lazy Eye Strabismus
  • Multiple Sclerosis MS
  • Neuro-Ophthalmology
  • Neurofibromatoses
  • Optic Nerve Diseases
  • Optic Nerve inflammation Optic Neuritis
  • Orbital Cancer
  • Orbital Surgery
  • Pituitary Gland Cancer
  • Pseudotumor Cerebri
  • Vision Disorders

Education & Awards

Dr. Subramanian graduated from Baylor College of Medicine, Houston. He has 2 awards.

Patients' Choice Award (2011 - 2013)
Compassionate Doctor Recognition (2013)


Dr. Subramanian has 3 hospital affiliations:

  • The Johns Hopkins Hospital 
  • Suburban Hospital 
  • Johns Hopkins Bayview Medical Center 


  • German
  • Spanish
  • Tamil

> > > > Dr. Prem Subramanian, MD, PHD

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Additional Information
Dr. Prem Sagar Subramanian MD and PHD is a male Ophthalmologist, has 13 years of experience and practices in Ophthalmology.
Where does Dr. Prem S. Subramanian practice?
Dr. Prem Subramanian has 2 office locations.
Dr. Prem Subramanian practices Ophthalmology near Baltimore, MD.
Additional practice locations include: Bethesda, MD.
See Baltimore Ophthalmologists.