Dr Leon Frederick O'neill Iv, DO - Medicare Cardiovascular Disease (cardiology) in Eatontown, NJ

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Dr Leon Frederick O'neill Iv, DO is a medicare enrolled "Internal Medicine - Cardiovascular Disease" physician in Eatontown, New Jersey. He went to Philadelphia College Of Osteopathic Medicine and graduated in 2005 and has 19 years of diverse experience with area of expertise as Cardiovascular Disease (cardiology). He is a member of the group practice Monmouth Cardiology Associates, Llc, Meridian Cardiovascular Interpretive Services Pc and his current practice location is 11 Meridian Rd, Eatontown, New Jersey. You can reach out to his office (for appointments etc.) via phone at (732) 776-5138.

Dr Leon Frederick O'neill Iv is licensed to practice in New Jersey (license number 25MB08394100) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1275723736.

Contact Information

Dr Leon Frederick O'neill Iv, DO
11 Meridian Rd,
Eatontown, NJ 07724-2242
(732) 776-5138
(732) 776-6601

Map and Direction




Physician's Profile

Full NameDr Leon Frederick O'neill Iv
GenderMale
SpecialityCardiovascular Disease (cardiology)
Experience19 Years
Location11 Meridian Rd, Eatontown, New Jersey
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Leon Frederick O'neill Iv attended and graduated from Philadelphia College Of Osteopathic Medicine in 2005
  NPI Data:
  • NPI Number: 1275723736
  • Provider Enumeration Date: 07/30/2007
  • Last Update Date: 04/09/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 6800064411
  • Enrollment ID: I20110727000135

Medical Identifiers

Medical identifiers for Dr Leon Frederick O'neill Iv such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1275723736NPI-NPPES
22-3052989OtherNJTAX ID#
0267929MedicaidNJ

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RC0000XInternal Medicine - Cardiovascular Disease 0102208428 (Virginia)Secondary
207RC0000XInternal Medicine - Cardiovascular Disease 25MB08394100 (New Jersey)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Jersey Shore University Medical CenterNeptune, NJHospital
Centrastate Medical CenterFreehold, NJHospital
Ocean Medical CenterBrick, NJHospital
Monmouth Medical CenterLong branch, NJHospital
Jfk Medical CenterEdison, NJHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Monmouth Cardiology Associates, Llc690188120040
Meridian Cardiovascular Interpretive Services Pc852701223658

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr Leon Frederick O'neill Iv allows following entities to bill medicare on his behalf.
Entity NameMonmouth Cardiology Associates, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1285601674
PECOS PAC ID: 6901881200
Enrollment ID: O20040621001822
Entity NameMeridian Cardiovascular Interpretive Services Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1548310576
PECOS PAC ID: 8527012236
Enrollment ID: O20050307000039

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr Leon Frederick O'neill Iv is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr Leon Frederick O'neill Iv, DO
11 Meridian Rd,
Eatontown, NJ 07724-2242

Ph: (732) 776-5138		Dr Leon Frederick O'neill Iv, DO
11 Meridian Rd,
Eatontown, NJ 07724-2242

Ph: (732) 776-5138

Reviews and Comments


Internal Medicine Doctors in Eatontown, NJ

Violet Elizabeth Kramer, MD
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Practice Location: 30 Corbett Way, Eatontown, NJ 07724
Phone: 732-380-0020    
Dr. Mariam Gamal Wassef, D.O.
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Practice Location: 274 Route 35, Eatontown, NJ 07724
Phone: 732-440-7336    Fax: 732-440-9404
Dr. Isaac Tawfik, MD
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Practice Location: 274 Highway 35, Eatontown, NJ 07724
Phone: 732-440-7336    
Hank Ashforth, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 145 Wyckoff Rd Ste 301, Eatontown, NJ 07724
Phone: 848-208-5250    
Dr. Bharath Sathya, M.D.
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 11 Meridian Rd, Eatontown, NJ 07724
Phone: 732-663-0300    Fax: 732-663-0301
Dr. Jeffrey Osofsky, M.D.
Cardiovascular Disease
Medicare: Accepting Medicare Assignments
Practice Location: 11 Meridian Rd, Eatontown, NJ 07724
Phone: 732-663-0300    Fax: 732-663-0301
Dr. Charles Mattina, M.D.
Cardiovascular Disease
Medicare: Not Enrolled in Medicare
Practice Location: 11 Meridian Rd, Eatontown, NJ 07724
Phone: 732-663-0300    Fax: 732-663-0301

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

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