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Internist, Infectious Disease Specialist (virus, bacteria, parasites)
44 years of experience
Accepting new patients
Video profile
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. Gilbert Irwin is Excellent. Dr. Irwin has been reviewed by 9 patients who have provided 2 comments. The rating is 5 out of 5 stars.

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

Specialties & Research

  • He has special expertise in 3 areas:
  • AIDS/HIV (Acquired Immunodeficiency Syndrome)
  • HIV Infections
  • Hepatitis C

Education & Awards

Dr. Irwin graduated from UMDNJ, Newark. He has 5 awards.

Patients' Choice Award (2014)
Compassionate Doctor Recognition (2014)
Bridges to Excellence Recognition
Physician Office Systems Recognition (2014 - 2016)
Level III
NCQA Physician Practice Connections - Patient Centered Medical Home (2014 - 2017)
On-Time Doctor Award (2014)


Dr. Irwin has 3 hospital affiliations:

  • Prince William Hosp 
  • Fauquier Hosp 
  • Prince William Hospital, Manassas, Va 


  • French
  • Spanish

> > > > Dr. Gilbert Irwin, MD, PC

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Additional Information
Dr. Gilbert Raymond Irwin MD and PC is a male Internist, has 44 years of experience and practices in Internal Medicine and Infectious Disease.
Where does Dr. Gilbert R. Irwin practice?
Dr. Gilbert Irwin has 1 office location.
Dr. Gilbert Irwin practices Internal Medicine and Infectious Disease near Manassas, VA.
See Manassas Internists and Manassas Infectious Disease Doctors.