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Obstetrician & Gynecologist (OB/GYN)
48 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 (221)

The overall average patient rating of Dr. John Niles is Excellent. Dr. Niles has been reviewed by 1409 patients who have provided 221 comments. The rating is 4.5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.8
Promptness 4.5
Courteous Staff 4.3
Accurate Diagnosis 3.6
Bedside Manner 3.1
Spends Time with Me 3.6
Follows Up After Visit 3.3

Specialties & Research

Dr. John Niles, MD is board certified in Obstetrics & Gynecology.

  • He has special expertise in 2 areas:
  • Hot Flashes
  • Menopause

Education & Awards

Dr. Niles graduated from Howard University , Washington. He has 3 awards.

Patients' Choice Award (2011 - 2014)
Compassionate Doctor Recognition (2011 - 2013)
On-Time Doctor Award (2014)


Dr. Niles has 4 hospital affiliations:

  • Washington Hospital Center 
  • Providence Hospital 


  • Spanish

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Additional Information
Dr. John Herbert Niles MD is a male Obstetrician & Gynecologist, has 48 years of experience and practices in Obstetrics & Gynecology.
Where does Dr. John H. Niles practice?
Dr. John Niles has 1 office location.
Dr. John Niles practices Obstetrics & Gynecology near Greenbelt, MD.
See Greenbelt Obstetricians & Gynecologists.