0 reviews
Summary
Dr. Leon O'Neill is a cardiovascular disease specialist with dual expertise in internal medicine. He earned his medical degree from Philadelphia College of Osteopathic Medicine and has been practicing for 21 years, bringing extensive experience to his patient care.
Dr. O'Neill practices at multiple locations throughout New Jersey, including Eatontown, Freehold, and Neptune. He focuses on treating conditions such as high cholesterol in children and teens, hyperlipidemia, and hypertension. His procedural expertise includes performing electrocardiograms and specialized heart imaging studies like contrast echocardiography and transthoracic echocardiograms to evaluate heart function and diagnose cardiovascular conditions.
Dr. O'Neill practices at multiple locations throughout New Jersey, including Eatontown, Freehold, and Neptune. He focuses on treating conditions such as high cholesterol in children and teens, hyperlipidemia, and hypertension. His procedural expertise includes performing electrocardiograms and specialized heart imaging studies like contrast echocardiography and transthoracic echocardiograms to evaluate heart function and diagnose cardiovascular conditions.
Overview based on verified provider data
Quick Facts
- accepting new patients
- 21 years of experience
- 17 insurance plans accepted
- Philadelphia College Of Osteopathic Medicine
- 2 specialties
- 15 areas of expertise
- 3 office locations
- Male
Office Locations
Leon Frederick O Neill has 3 locationsCompare with Similar Doctors
![]() | ![]() | ![]() | ![]() |
| Leon Frederick O Neill IV, DO | Dr. Anastasia A Nikitina, MD | Dr. Igor Mamkin, MD | Dr. Mohammed Aslam Khan, MD |
| Cardiovascular Disease | Cardiovascular Disease | Cardiovascular Disease | Cardiovascular Disease |
| Accepts New Patients | Accepts New Patients | Accepts New Patients | Accepts New Patients |
| 21 Years of Experience | 29 Years of Experience | 22 Years of Experience | 36 Years of Experience |
| No Virtual Visit Option | No Virtual Visit Option | Virtual Visit Available | No Virtual Visit Option |
| Speaks Russian | Speaks Russian | Speaks Russian, Spanish | |
| Eatontown , NJ | Brooklyn , NY | Brooklyn , NY | Brooklyn , NY |
| Med School: Philadelphia College Of Osteopathic Medicine | Med School: Moscow State Univ Of Medicine And Dentistry Named After Ai Evdokimov | Med School: St Georges University School of Medicine | Med School: George Washington University |
Current Profile | View Profile | View Profile | View Profile |
Insurance Plans Accepted by Leon Frederick O Neill
Medical Specialties
Leon Frederick O Neill has the following 2 specialties
Specialty Expertise
Leon Frederick O Neill has the following 15 areas of expertise
Certifications, License, & Education
21 Years Experience
Leon Frederick O Neill holds an active medical license in the state of New Jersey.
Medical License
Doctor Of Osteopathy with an active medical license in the state of New Jersey that expires in 2027.
Education & Training
Medical School
Graduated from Philadelphia College Of Osteopathic Medicine in 2005.
NPI Number
Leon Frederick O Neill's NPI number is 1275723736.
Similar doctors
Frequently Asked Questions
- Does Leon O Neill accept virtual/telehealth appointments?
- Leon O Neill has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
- Is Leon O Neill accepting new patients?
- Leon O Neill is accepting new patients on Vitals. View Leon O Neill's profile on Vitals to make an appointment.
- How can I make an appointment with Leon O Neill?
- You can find contact information for Leon O Neill here on Vitals.
- Does Leon O Neill accept my insurance?
- You can see the insurance plans that Leon O Neill accepts on their Vitals profile.
- Where is Leon O Neill's office located?
- Leon O Neill's office is located at 11 Meridian Rd, Eatontown, NJ, 07724.
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.





