Browse Health
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).

Learn more about Dr. Janet O'Mahony:

View the full profile to get information on:

  1. Qualifications
  2. What's important to you

View full profile

Patient Reviews

Patient comments (3)

The overall average patient rating of Dr. Janet O'Mahony is Excellent. Dr. O'Mahony has been reviewed by 9 patients who have provided 3 comments. The rating is 5 out of 5 stars.

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

Specialties & Research

Dr. Janet O'Mahony, MD is board certified in Internal Medicine.

Education & Awards

Dr. O'Mahony graduated from University of Maryland , Baltimore. She has 3 awards.

Patients' Choice Award (2012, 2014)
Compassionate Doctor Recognition (2012, 2014)
On-Time Doctor Award (2014)


Dr. O'Mahony has 2 hospital affiliations:

  • St Joseph Medical Center 
  • Mercy Medical Center Inc 


  • Spanish

> > > > Dr. Janet O'Mahony, MD

Similar doctors nearby

Dr. Ronald Sanjuan

Internal Medicine
16 years experience
Baltimore, MD

Dr. Michael Sambat

Internal Medicine
16 years experience
Baltimore, MD

Dr. James Levy

Allergy & Immunology
42 years experience
Baltimore, MD

Dr. Kay Nwe

Internal Medicine
20 years experience
Baltimore, MD

Dr. Emerson Walden

Internal Medicine
37 years experience
Baltimore, MD

Dr. Douglas Mayo

Emergency Medicine
12 years experience
Baltimore, MD
Search All Similar Doctors
Additional Information
Dr. Janet Marie O'Mahony MD is a female Internist, has 20 years of experience and practices in Internal Medicine.
Where does Dr. Janet M. O'Mahony practice?
Dr. Janet O'Mahony has 1 office location.
Dr. Janet O'Mahony practices Internal Medicine near Baltimore, MD.
See Baltimore Internists.