John Michael Ioannou, MD - Medicare Nephrology in Rockville Centre, NY

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John Michael Ioannou, MD is a medicare enrolled "Internal Medicine - Nephrology" physician in Rockville Centre, New York. He went to Icahn School Of Medicine At Mount Sinai and graduated in 2001 and has 23 years of diverse experience with area of expertise as Nephrology. He is a member of the group practice Prine Health Medical Group, Pllc and his current practice location is 242 Merrick Rd, Suite 304, Rockville Centre, New York. You can reach out to his office (for appointments etc.) via phone at (516) 764-7070.

John Michael Ioannou is licensed to practice in New York (license number 231998) 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 1851330328.

Contact Information

John Michael Ioannou, MD
242 Merrick Rd, Suite 304,
Rockville Centre, NY 11570-5254
(516) 764-7070
(516) 764-7073

Map and Direction




Physician's Profile

Full NameJohn Michael Ioannou
GenderMale
SpecialityNephrology
Experience23 Years
Location242 Merrick Rd, Rockville Centre, New York
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:
  • John Michael Ioannou attended and graduated from Icahn School Of Medicine At Mount Sinai in 2001
  NPI Data:
  • NPI Number: 1851330328
  • Provider Enumeration Date: 06/06/2006
  • Last Update Date: 10/30/2009
  Medicare PECOS Information:
  • PECOS PAC ID: 1658383104
  • Enrollment ID: I20060627000035

Medical Identifiers

Medical identifiers for John Michael Ioannou such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1851330328NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RN0300XInternal Medicine - Nephrology 231998 (New York)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
South Nassau Outpatient Dialysis CenterOceanside, NYDialysis facility
Huntington Akc Freeport, Ext.Freeport, NYDialysis facility
Nassau Dialysis LlcBellmore, NYDialysis facility
Mount Sinai South NassauOceanside, NYHospital
Mercy Medical CenterRockville centre, NYHospital
Chsli St Joseph HospitalBethpage, NYHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Prine Health Medical Group, Pllc155760038464

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. John Michael Ioannou allows following entities to bill medicare on his behalf.
Entity NamePrine Health Medical Group, Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1144790163
PECOS PAC ID: 1557600384
Enrollment ID: O20190222000152

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. John Michael Ioannou 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
John Michael Ioannou, MD
242 Merrick Rd, Suite 304,
Rockville Centre, NY 11570-5254

Ph: (516) 764-7070		John Michael Ioannou, MD
242 Merrick Rd, Suite 304,
Rockville Centre, NY 11570-5254

Ph: (516) 764-7070

Reviews and Comments


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Manish B Undavia, M.D.
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Mary K Leung, MD
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Phone: 516-536-1455    Fax: 516-536-1598
Richard M. Lee, MD
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Practice Location: 242 Merrick Rd, Suite 301, Rockville Centre, NY 11570
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Varvara Alexiadis, MD
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Phone: 516-536-3700    Fax: 516-536-4309
Dr. Ellen Haig, M.D.
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Practice Location: 2 Lincoln Ave, Suite 201, Rockville Centre, NY 11570
Phone: 516-536-0600    Fax: 516-536-0694

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).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.