Physician Profile
O'Neil R. Mason, M.D.
Unclaimed ProfileAbout Dr. Mason
O'Neil R. Mason, M.D. practices cardiovascular disease in Morristown, NJ. O’Neil is also listed as specializing in internal medicine. According to Medicare claims data, O’Neil cared for 931 Medicare patients across 980 services. The services billed most often include ultrasound of heart with color-depicted blood flow, rate, direction and valve function, ultrasound of heart with probe in esophagus during surgery on heart or great blood vessels with report, and ultrasound of heart with color-depicted blood flow, rate, direction and valve function.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (973) 971-7416
- Email not available
Practice Locations
100 MADISON AVE
Morristown, NJ 07960
Conditions Commonly Evaluated or Treated
Within Cardiovascular Disease generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
- AFib
- Congestive heart failure
- Heart attack
- Heart disease
- High blood pressure
- High cholesterol
Coronary and ischemic heart disease
- Coronary artery disease
- Stable angina
Heart failure and cardiomyopathy
Heart rhythm
- Slow heart rate (bradycardia)
- Supraventricular tachycardia
Symptoms and functional disorders
- Fainting and syncope
- Heart palpitations
- Postural orthostatic tachycardia syndrome
Valve and structural heart
Vascular and risk factors
- Aortic aneurysm
- Carotid artery disease
- Familial hypercholesterolemia
- Resistant hypertension
Artery & vascular
Heart inflammation
Heart muscle
- Poor Circulation and Swollen Legs
Heart valves
Vascular disease
- High Blood Pressure in the Lungs (Pulmonary Hypertension)
Procedures & services
Most searched procedures
- Echocardiogram
- EKG
- Heart monitor
- Heart stent
- Pacemaker surgery
- Stress test
Office and noninvasive testing
- Ambulatory blood-pressure monitoring
Advanced imaging
- Cardiac magnetic resonance imaging
- Nuclear cardiac stress imaging
Consultations
Diagnostic testing
- Cardiopulmonary Exercise Testing (CPET)
- Tilt Table Test
Diagnostics
Heart devices
- Biventricular Pacemaker (Cardiac Resynchronization Therapy)
- Implantable Loop Recorder (Cardiac Monitor Implant)
Heart imaging
Heart procedures
- Heart Fluid Drainage (Pericardiocentesis)
Heart rhythm procedures
- Radiofrequency ablation
Imaging
- Heart Calcium Scan
- Transesophageal Echocardiogram for Kids
Implants
Recovery & rehabilitation
Vascular imaging
- Carotid Ultrasound
- Leg Circulation Test (ABI and Arterial Doppler)
Procedures Most Often Billed to Medicare
980 services · 931 patients · 10 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Mri scan of heart before and after contrast | Imaging | 75561 |
12 |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
379 |
| Ultrasound of heart with probe in esophagus during surgery on heart or great blood vessels with report | Treatment | 93355 |
170 |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
146 |
| Ultrasound of heart, follow-up | Treatment | 93308 |
81 |
| Ultrasound of heart with probe in esophagus, with report | Treatment | 93312 |
60 |
| Ultrasound of heart blood flow, valves and chambers | Treatment | 93320 |
58 |
| 3d ultrasound imaging of heart for evaluation of heart structure performed during ultrasound imaging of congenital heart defects | Treatment | 93319 |
46 |
| Ultrasound of heart | Treatment | 93307 |
16 |
| Ultrasound of heart with color-depicted blood flow, rate and valve function | Treatment | 93325 |
12 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other cardiologists at this location 1
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other cardiologists in Morristown 7
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2005 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Mri scan of heart before and after contrast 8
Providers in NJ who bill this service to Medicare most often.
Common questions
What is O'Neil R. Mason's specialty?
O'Neil R. Mason is a cardiologist in Morristown, NJ. That is the designation recorded for this NPI in the federal registry, where it is listed as “Cardiovascular Disease”.
NPI registry
Where can I find O'Neil R. Mason?
O'Neil R. Mason is listed at 100 Madison Ave, Morristown, NJ 07960. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact O'Neil R. Mason?
The number on file is (973) 971-7416. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is O'Neil R. Mason's NPI number?
O'Neil R. Mason's National Provider Identifier is 1699046748. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is O'Neil R. Mason's education?
O'Neil R. Mason attended Other, graduating in 2005. This comes from the CMS National Downloadable File.
CMS public data
How long has O'Neil R. Mason been practicing?
O'Neil R. Mason has 21 years experience. Calculated from a graduation year of 2005, reported in the CMS National Downloadable File.
CMS public data
What is O'Neil R. Mason known for?
According to Medicare billing data, O'Neil R. Mason performs imaging including mri scan of heart before and after contrast; provides treatments such as ultrasound of heart with color-depicted blood flow, rate, direction and valve function and ultrasound of heart with probe in esophagus during surgery on heart or great blood vessels with report. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has O'Neil R. Mason confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by O'Neil R. Mason. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.