Dr Niamh Marie Keegan, MB BCH BAO - Medicare Internal Medicine in New York, NY

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Dr Niamh Marie Keegan, MB BCH BAO is a medicare enrolled "Internal Medicine - Hematology & Oncology" physician in New York, New York. Her current practice location is 1275 York Ave, New York, New York. You can reach out to her office (for appointments etc.) via phone at (212) 639-5809.

Dr Niamh Marie Keegan is licensed to practice in New York (license number 307947) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1811487127.

Contact Information

Dr Niamh Marie Keegan, MB BCH BAO
1275 York Ave,
New York, NY 10065-6007
(212) 639-5809
(929) 321-7170

Map and Direction




Physician's Profile

Full NameDr Niamh Marie Keegan
GenderFemale
SpecialityInternal Medicine - Hematology & Oncology
Location1275 York Ave, New York, New York
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1811487127
  • Provider Enumeration Date: 05/11/2018
  • Last Update Date: 03/20/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 0648647198
  • Enrollment ID: I20221114000403

Medical Identifiers

Medical identifiers for Dr Niamh Marie Keegan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1811487127NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RH0003XInternal Medicine - Hematology & Oncology 307947 (New York)Primary

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 Niamh Marie Keegan allows following entities to bill medicare on her behalf.
Entity NameMemorial Solid Tumor Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1699746172
PECOS PAC ID: 4082503354
Enrollment ID: O20040313000668
Entity NameMsk Harrison
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1174923593
PECOS PAC ID: 1052634045
Enrollment ID: O20141224000110
Entity NameMsk Nassau
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1053875229
PECOS PAC ID: 8628311685
Enrollment ID: O20190522000541

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 Niamh Marie Keegan 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 Niamh Marie Keegan, MB BCH BAO
353 E 68th St,
New York, NY 10065-5606

Ph: () -		Dr Niamh Marie Keegan, MB BCH BAO
1275 York Ave,
New York, NY 10065-6007

Ph: (212) 639-5809

Reviews and Comments


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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.

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