William R Leahy, MD - Medicare Psychiatry & Neurology in Greenbelt, MD

William R Leahy, MD is a medicare enrolled "Psychiatry & Neurology - Neurology With Special Qualifications In Child Neurology" physician in Greenbelt, Maryland. His current practice location is 7500 Hanover Pkwy, Suite 201, Greenbelt, Maryland. You can reach out to his office (for appointments etc.) via phone at (301) 982-7944.

William R Leahy is licensed to practice in Maryland (license number D0015593) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1164439550.

Contact Information

William R Leahy, MD
7500 Hanover Pkwy, Suite 201,
Greenbelt, MD 20770-2010
(301) 982-7944
(301) 441-8696

Map and Direction




Physician's Profile

Full NameWilliam R Leahy
GenderMale
SpecialityPsychiatry & Neurology - Neurology With Special Qualifications In Child Neurology
Location7500 Hanover Pkwy, Greenbelt, Maryland
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1164439550
  • Provider Enumeration Date: 08/01/2006
  • Last Update Date: 10/11/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 5496897555
  • Enrollment ID: I20100421000349

Medical Identifiers

Medical identifiers for William R Leahy such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1164439550NPI-NPPES
16540004OtherMDBCBS DC
23041OtherMDMAMSI
310511300MedicaidMD
32958002OtherMDBCBS MD
0500456OtherMDUNITED HEALTHCARE
528559OtherMDAETNA USHC

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2084N0400XPsychiatry & Neurology - Neurology D15593 (Maryland)Secondary
2084N0402XPsychiatry & Neurology - Neurology With Special Qualifications In Child Neurology D0015593 (Maryland)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. William R Leahy allows following entities to bill medicare on his behalf.
Entity NamePavel Klein
Entity TypePractitioner - Neurology
Entity IdentifiersNPI Number: 1770528648
PECOS PAC ID: 4789611419
Enrollment ID: I20050725000306
Entity NameMgmc Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1891797148
PECOS PAC ID: 9537073119
Enrollment ID: O20031220000056

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. William R Leahy 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
William R Leahy, MD
7500 Hanover Pkwy, Suite 201,
Greenbelt, MD 20770-2010

Ph: (301) 982-7944
William R Leahy, MD
7500 Hanover Pkwy, Suite 201,
Greenbelt, MD 20770-2010

Ph: (301) 982-7944

Reviews and Comments


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Kenneth Michael Kudelko, M.D.
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Practice Location: 7500 Hanover Pkwy, Suite 201, Greenbelt, MD 20770
Phone: 301-982-7944    Fax: 301-441-8696

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.