Dr Michael Nmn Grassia, MD - Medicare Nephrology in Norfolk, VA

Dr Michael Nmn Grassia, MD is a medicare enrolled "Internal Medicine - Nephrology" physician in Norfolk, Virginia. He went to Eastern Virginia Medical School and graduated in 1997 and has 27 years of diverse experience with area of expertise as Nephrology. He is a member of the group practice Nephrology Associates Of Tidewater Ltd and his current practice location is 6160 Kempsville Circle, Suite 302a, Norfolk, Virginia. You can reach out to his office (for appointments etc.) via phone at (757) 466-9288.

Dr Michael Nmn Grassia is licensed to practice in Virginia (license number 0101232951) 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 1235128133.

Contact Information

Dr Michael Nmn Grassia, MD
6160 Kempsville Circle, Suite 302a,
Norfolk, VA 23502-3933
(757) 466-9288
(757) 457-3691

Map and Direction




Physician's Profile

Full NameDr Michael Nmn Grassia
GenderMale
SpecialityNephrology
Experience27 Years
Location6160 Kempsville Circle, Norfolk, Virginia
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 Michael Nmn Grassia attended and graduated from Eastern Virginia Medical School in 1997
  NPI Data:
  • NPI Number: 1235128133
  • Provider Enumeration Date: 10/14/2005
  • Last Update Date: 10/25/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 2961458062
  • Enrollment ID: I20101013000505

Medical Identifiers

Medical identifiers for Dr Michael Nmn Grassia such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1235128133NPI-NPPES
390008345OtherVARAILROAD MEDICARE
005875072MedicaidVA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RN0300XInternal Medicine - Nephrology 0101232951 (Virginia)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Fmc - Virginia BeachVirginia beach, VADialysis facility
Sentara Princess Anne HospitalVirginia beach, VAHospital
Sentara Obici HospitalSuffolk, VAHospital
Sentara Leigh HospitalNorfolk, VAHospital
Chesapeake Regional Medical CenterChesapeake, VAHospital
Sentara Norfolk General HospitalNorfolk, VAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Nephrology Associates Of Tidewater Ltd317342655822

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 Michael Nmn Grassia allows following entities to bill medicare on his behalf.
Entity NameNephrology Associates Of Tidewater Ltd
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1518990423
PECOS PAC ID: 3173426558
Enrollment ID: O20040202000250

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 Michael Nmn Grassia 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 Michael Nmn Grassia, MD
6160 Kempsville Circle, Suite 302a,
Norfolk, VA 23502-3933

Ph: (757) 466-9288
Dr Michael Nmn Grassia, MD
6160 Kempsville Circle, Suite 302a,
Norfolk, VA 23502-3933

Ph: (757) 466-9288

Reviews and Comments


Internal Medicine Doctors in Norfolk, VA

Ranjana Neelanjana Mitra, MD
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Arunava Paul, MD
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Abbas Asgher Ali, M.D.
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Peter B Laplace, MD
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Dr. John S Carrick, MD
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Phone: 757-261-5283    Fax: 757-261-5849
Dr. Rajden E Kutelia, M.D.
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Medicare: Accepting Medicare Assignments
Practice Location: 600 Gresham Dr Fl 5, Norfolk, VA 23507
Phone: 757-388-3198    Fax: 757-388-4242

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.