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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 (4)

The overall average patient rating of Dr. Mark Bilowus is Excellent. Dr. Bilowus has been reviewed by 10 patients who have provided 4 comments. The rating is 4.5 out of 5 stars.

Patient Ratings
Ease of Appointment 4.1
Promptness 4.6
Courteous Staff 4.8
Accurate Diagnosis 5.0
Bedside Manner 4.3
Spends Time with Me 4.7
Follows Up After Visit 4.6

Specialties & Research

Dr. Mark Bilowus, MD is board certified in Urology.

  • He has special expertise in 2 areas:
  • Overactive Urinary Bladder
  • Vasectomy

Education & Awards

Dr. Bilowus graduated from University of Guadalajara, Mexico, San Antonio. He has 2 awards.

Patients' Choice Award (2015)
Compassionate Doctor Recognition (2015)


Dr. Bilowus has 7 hospital affiliations:

  • Inova Fair Oaks Hospital 
  • Inova Loudon Hospital Center, Lansdowne 


  • Spanish
  • English

> > > > Dr. Mark Bilowus, MD

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Additional Information
Dr. Mark Lawrence Bilowus MD is a male Urologist, has 32 years of experience and practices in Urology.
Where does Dr. Mark L. Bilowus practice?
Dr. Mark Bilowus has 1 office location.
Dr. Mark Bilowus practices Urology near Reston, VA.
See Reston Urologists.