0 reviews
Summary
Dr. O'neil Mason treats aortic valve stenosis, heart failure, and hypertension, and performs contrast echocardiography, transthoracic echocardiogram, and dobutamine stress echocardiogram. He has practiced cardiology for 21 years and is affiliated with Cedars Sinai Medical Center.
Dr. Mason earned his medical degree from the University of California Los Angeles David Geffen School of Medicine and completed his residency at Mount Sinai Medical Center. He sees patients in Morristown, New Jersey.
Dr. Mason earned his medical degree from the University of California Los Angeles David Geffen School of Medicine and completed his residency at Mount Sinai Medical Center. He sees patients in Morristown, New Jersey.
Overview based on verified provider data
Quick Facts
- accepting new patients
- 21 years of experience
- 18 insurance plans accepted
- Mount Sinai Medical Center
- 2 specialties
- 7 areas of expertise
- 1 hospital affiliation
- 1 office location
- Male
Office Location
Compare with Similar Doctors
![]() | ![]() | ![]() | ![]() |
| O'neil Mason, MD | Jaya Kanduri, MD | Zvi S. Marans, MD | Marlon Steven Rosenbaum, MD |
| Cardiology | Cardiology | Cardiology | Cardiology |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | Accepts New Patients |
| 21 Years of Experience | 9 Years of Experience | 42 Years of Experience | 46 Years of Experience |
| No Virtual Visit Option | Virtual Visit Available | Virtual Visit Available | Virtual Visit Available |
| Speaks English | Speaks English, Spanish | Speaks English, Spanish | |
| Morristown , NJ | New York , NY | New York , NY | New York , NY |
| Med School: UNIVERSITY OF CALIFORNIA LOS ANGELES DAVID GEFFEN SCHOOL OF MEDICINE | Med School: Rutgers Robert Wood Johnson Medical School | Med School: Perelman School Of Medicine At University Of Pennsylvania | Med School: New York University School Of Medicine |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by O'neil Mason
Medical Specialties
O'neil Mason has the following 2 specialties
Specialty Expertise
O'neil Mason has the following 7 areas of expertise
Certifications, License, & Education
21 Years Experience
O'neil Mason holds an active medical license in the state of New Jersey.
Medical License
Medical Doctor with an active medical license in the state of New Jersey that expires in 2027.
Education & Training
Residency
Completed their residency at Mount Sinai Medical Center.
Medical School
Graduated from UNIVERSITY OF CALIFORNIA LOS ANGELES DAVID GEFFEN SCHOOL OF MEDICINE in 2008 and University Of The West Indies Faculty Of Medical Sciences Jamaica in 2005.
NPI Number
O'neil Mason's NPI number is 1699046748.
Similar doctors
Frequently Asked Questions
- Is O'neil Mason accepting new patients?
- O'neil Mason is accepting new patients on Vitals. View O'neil Mason's profile on Vitals to make an appointment.
- Does O'neil Mason accept my insurance?
- You can see the insurance plans that O'neil Mason accepts on their Vitals profile.
- Which hospitals is O'neil Mason affiliated with?
- O'neil Mason is affiliated with Cedars Sinai Medical Center.
- Does O'neil Mason accept virtual/telehealth appointments?
- O'neil Mason has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
- Where is O'neil Mason's office located?
- O'neil Mason's office is located at 100 Madison Ave Ste 5, Morristown, NJ, 07960.
Data Sources
This provider profile is built using data from:
- NPPES NPI Registry
- State medical licensing boards
- Healthcare system and provider network data
Ensuring Data Transparency and Trust: A Guide to Vitals Doctor Listings and Reviews
Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.
Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.
Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.






