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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 (2)

The overall average patient rating of Dr. Mark Irwin is Good. Dr. Irwin has been reviewed by 11 patients who have provided 2 comments. The rating is 4 out of 5 stars.

Patient Ratings
Ease of Appointment 4.7
Promptness 4.7
Courteous Staff 4.5
Accurate Diagnosis 5.0
Bedside Manner 5.0
Spends Time with Me 5.0
Follows Up After Visit 5.0

Specialties & Research

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

  • He has special expertise in 5 areas:
  • Erectile Dysfunction (ED)
  • Kidney Stones (Kidney Calculi)
  • Kidney Stones (Nephrocalcinosis)
  • Overactive Urinary Bladder
  • Prostate Diseases (Prostatic Diseases)

Education & Awards

Dr. Irwin graduated from Medical College of Wisconsin, Milwaukee. He has 1 awards.

On-Time Doctor Award (2014)


Dr. Irwin has 3 hospital affiliations:

  • Brooklyn University Hospital 
  • University Hospital of Brooklyn at Long Island Hospital 
  • SUNY Downstate Medical Center - University Hospital of Brooklyn 


  • Czech
  • Hebrew
  • Arabic
  • Spanish
  • Russian
  • Hindi
  • French
  • English

> > > > Dr. Mark Irwin, MD

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Additional Information
Dr. Mark B Irwin MD is a male Urologist, has 29 years of experience and practices in Urology.
Where does Dr. Mark B. Irwin practice?
Dr. Mark Irwin has 1 office location.
Dr. Mark Irwin practices Urology near Brooklyn, NY.
See Brooklyn Urologists.