Alexander O Walker Iii, MD - Medicare Emergency Medicine in Melrose, MA

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Alexander O Walker Iii, MD is a medicare enrolled "Emergency Medicine" physician in Melrose, Massachusetts. His current practice location is 585 Lebanon St, Melrose, Massachusetts. You can reach out to his office (for appointments etc.) via phone at (781) 979-3635.

Alexander O Walker Iii is licensed to practice in Massachusetts (license number 216791) 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 1033182688.

Contact Information

Alexander O Walker Iii, MD
585 Lebanon St,
Melrose, MA 02176-3225
(781) 979-3635
Not Available

Map and Direction




Physician's Profile

Full NameAlexander O Walker Iii
GenderMale
SpecialityEmergency Medicine
Location585 Lebanon St, Melrose, Massachusetts
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1033182688
  • Provider Enumeration Date: 02/13/2006
  • Last Update Date: 04/28/2008
  Medicare PECOS Information:
  • PECOS PAC ID: 9537109947
  • Enrollment ID: I20050505000145

Medical Identifiers

Medical identifiers for Alexander O Walker Iii such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1033182688NPI-NPPES
J26468OtherMABCBS
2013568MedicaidMA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine 216791 (Massachusetts)Primary
207P00000XEmergency Medicine A85740 (California)Secondary

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. Alexander O Walker Iii allows following entities to bill medicare on his behalf.
Entity NameMelrose Wakefield Emergency Physicians, Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1790730539
PECOS PAC ID: 0244143006
Enrollment ID: O20031107000277
Entity NameHallmark Health Urgent Care Physicians Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1184066912
PECOS PAC ID: 1153557616
Enrollment ID: O20131112001050

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. Alexander O Walker Iii 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
Alexander O Walker Iii, MD
585 Lebanon St,
Melrose, MA 02176-3225

Ph: (781) 979-3635		Alexander O Walker Iii, MD
585 Lebanon St,
Melrose, MA 02176-3225

Ph: (781) 979-3635

Reviews and Comments


Emergency Medicine Doctors in Melrose, MA

Thomas L Michelman, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 585 Lebanon St, Whidden Memorial Hosp, Melrose, MA 02176
Phone: 781-979-3300    
Dr. Steven Sbardella, M.D.
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 585 Lebanon St, Melrose, MA 02176
Phone: 781-937-4522    
Christopher L Defazio, MD
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 585 Lebanon St, Melrose, MA 02176
Phone: 781-979-3635    Fax: 781-979-3018
Lawrence Whiting, MD
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 585 Lebanon St, Melrose, MA 02176
Phone: 781-937-4522    
John Nadolny, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 585 Lebanon St, Melrose, MA 02176
Phone: 781-937-4522    
Manu Sondhi, MD
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 585 Lebanon St, Melrose, MA 02176
Phone: 781-937-4522    

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.