Dr Marzena Gieniusz, MD - Medicare Geriatric Medicine in Great Neck, NY

Dr Marzena Gieniusz, MD is a medicare enrolled "Internal Medicine - Geriatric Medicine" physician in Great Neck, New York. She graduated from medical school in 2013 and has 11 years of diverse experience with area of expertise as Geriatric Medicine. She is a member of the group practice North Shore - Lij Medical Pc and her current practice location is 865 Northern Blvd Ste 201, Great Neck, New York. You can reach out to her office (for appointments etc.) via phone at (516) 708-2520.

Dr Marzena Gieniusz is licensed to practice in New York (license number 285221) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1366886640.

Contact Information

Dr Marzena Gieniusz, MD
865 Northern Blvd Ste 201,
Great Neck, NY 11021-5310
(516) 708-2520
(516) 708-2585

Map and Direction




Physician's Profile

Full NameDr Marzena Gieniusz
GenderFemale
SpecialityGeriatric Medicine
Experience11 Years
Location865 Northern Blvd Ste 201, Great Neck, New York
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Marzena Gieniusz graduated from medical school in 2013
  NPI Data:
  • NPI Number: 1366886640
  • Provider Enumeration Date: 04/17/2013
  • Last Update Date: 05/14/2018
  Medicare PECOS Information:
  • PECOS PAC ID: 4183923626
  • Enrollment ID: I20170417000068

Medical Identifiers

Medical identifiers for Dr Marzena Gieniusz such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1366886640NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0300XInternal Medicine - Geriatric Medicine 285221 (New York)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
North Shore Home Care ChhaWestbury, NYHome health agency
Hospice Care Of Long Island, Queens, South ShoreWoodbury, NYHospice
North Shore University HospitalManhasset, NYHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
North Shore - Lij Medical Pc33757015685120

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 Marzena Gieniusz allows following entities to bill medicare on her behalf.
Entity NameNorth Shore - Lij Medical Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1053688572
PECOS PAC ID: 3375701568
Enrollment ID: O20120220000262

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 Marzena Gieniusz 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 Marzena Gieniusz, MD
865 Northern Blvd Ste 201,
Great Neck, NY 11021-5310

Ph: (516) 708-2520
Dr Marzena Gieniusz, MD
865 Northern Blvd Ste 201,
Great Neck, NY 11021-5310

Ph: (516) 708-2520

Reviews and Comments


Internal Medicine Doctors in Great Neck, NY

Melissa S Devlin, MD
Geriatric Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 891 Northern Blvd, Suite 203, Great Neck, NY 11021
Phone: 516-773-6300    Fax: 516-706-4700
Dr. Syed Hasan Iqbal, DO
Geriatric Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 891 Northern Blvd Ste 203, Great Neck, NY 11021
Phone: 516-773-6300    Fax: 516-706-4700
Madhu Bhaskaran, MD
Geriatric Medicine
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Practice Location: Nephrology, 100 Community Drive, Great Neck, NY 11021
Phone: 516-465-8210    
Dr. Alan S Rosenberg, M.D.
Geriatric Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1010 Northern Blvd, Ste 110, Great Neck, NY 11021
Phone: 516-390-2410    Fax: 516-482-7955
Dr. Howard Rattner, MD
Geriatric Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 233 E Shore Rd, Ste 101, Great Neck, NY 11023
Phone: 516-427-2444    Fax: 516-487-2446
Dr. Kenneth Ackerman, M.D.
Geriatric Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 277 Northern Blvd, 3rd Floor, Great Neck, NY 11021
Phone: 516-829-7750    Fax: 516-482-2644
Bernard Rosof,
Geriatric Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 145 Community Drive, Great Neck, NY 11021
Phone: 516-465-8260    

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.