Dr Andrew Keenan, MD - Medicare Nuclear Medicine in Largo, MD

Dr Andrew Keenan, MD is a medicare enrolled "Nuclear Medicine - Nuclear Imaging & Therapy" physician in Largo, Maryland. He went to George Washington University School Of Medicine and graduated in 1976 and has 48 years of diverse experience with area of expertise as Nuclear Medicine. He is a member of the group practice Medstar Medical Group Radiology, Llc, Medstar Medical Group Radiology, Llc and his current practice location is 901 Harry S Truman Dr N, Largo, Maryland. You can reach out to his office (for appointments etc.) via phone at (301) 677-2149.

Dr Andrew Keenan is licensed to practice in Maryland (license number D0026012) 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 1467405175.

Contact Information

Dr Andrew Keenan, MD
901 Harry S Truman Dr N,
Largo, MD 20774-5477
(301) 677-2149
Not Available

Map and Direction




Physician's Profile

Full NameDr Andrew Keenan
GenderMale
SpecialityNuclear Medicine
Experience48 Years
Location901 Harry S Truman Dr N, Largo, Maryland
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 Andrew Keenan attended and graduated from George Washington University School Of Medicine in 1976
  NPI Data:
  • NPI Number: 1467405175
  • Provider Enumeration Date: 05/17/2006
  • Last Update Date: 06/23/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 3375545346
  • Enrollment ID: I20070203000061

Medical Identifiers

Medical identifiers for Dr Andrew Keenan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1467405175NPI-NPPES
331441300MedicaidMD

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine D0026012 (Maryland)Secondary
207UN0903XNuclear Medicine - In Vivo & In Vitro Nuclear Medicine D0026012 (Maryland)Secondary
207UN0902XNuclear Medicine - Nuclear Imaging & Therapy D0026012 (Maryland)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Medstar Saint Mary's HospitalLeonardtown, MDHospital
Medstar Southern Maryland Hospital CenterClinton, MDHospital
Umd Prince George's Hospital CtrCheverly, MDHospital
Medstar Franklin Square Medical CenterBaltimore, MDHospital
Medstar Union Memorial HospitalBaltimore, MDHospital

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 Andrew Keenan allows following entities to bill medicare on his behalf.
Entity NameMedstar Medical Group Radiology, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1326450156
PECOS PAC ID: 1557589157
Enrollment ID: O20140826000263

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 Andrew Keenan 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 Andrew Keenan, MD
2831 Mcduff Dr,
Chesapeake Beach, MD 20732-3202

Ph: (410) 703-3511
Dr Andrew Keenan, MD
901 Harry S Truman Dr N,
Largo, MD 20774-5477

Ph: (301) 677-2149

Reviews and Comments



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.