Dr Lillian E C Mcmahon, MD - Medicare Pediatric Medicine in Boston, MA

Dr Lillian E C Mcmahon, MD is a medicare enrolled "Internal Medicine - Hematology" physician in Boston, Massachusetts. She graduated from medical school in 1963 and has 61 years of diverse experience with area of expertise as Pediatric Medicine. She is a member of the group practice Evans Medical Foundation Inc and her current practice location is 830 Harrison Ave, Moakley, 3rd Floor, Boston, Massachusetts. You can reach out to her office (for appointments etc.) via phone at (617) 638-6428.

Dr Lillian E C Mcmahon is licensed to practice in Massachusetts (license number 35185) 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 1801873542.

Contact Information

Dr Lillian E C Mcmahon, MD
830 Harrison Ave, Moakley, 3rd Floor,
Boston, MA 02118-2905
(617) 638-6428
(617) 638-5756

Map and Direction




Physician's Profile

Full NameDr Lillian E C Mcmahon
GenderFemale
SpecialityPediatric Medicine
Experience61 Years
Location830 Harrison Ave, Boston, Massachusetts
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 Lillian E C Mcmahon graduated from medical school in 1963
  NPI Data:
  • NPI Number: 1801873542
  • Provider Enumeration Date: 12/23/2005
  • Last Update Date: 09/27/2017
  Medicare PECOS Information:
  • PECOS PAC ID: 6406839489
  • Enrollment ID: I20040610000972

Medical Identifiers

Medical identifiers for Dr Lillian E C Mcmahon such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1801873542NPI-NPPES
110034435AMedicaidMA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2080P0207XPediatrics - Pediatric Hematology-oncology 35185 (Massachusetts)Secondary
207RH0000XInternal Medicine - Hematology 35185 (Massachusetts)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Boston Medical CenterBoston, MAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Evans Medical Foundation Inc7416946546445

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 Lillian E C Mcmahon allows following entities to bill medicare on her behalf.
Entity NameInternal Medical Associates-ebnhc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1558481879
PECOS PAC ID: 6103814371
Enrollment ID: O20040505000853
Entity NameEvans Medical Foundation Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1912954124
PECOS PAC ID: 7416946546
Enrollment ID: O20040512000397
Entity NameEast Boston Neighborhood Health Center Corp
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1316994411
PECOS PAC ID: 9032356050
Enrollment ID: O20130513000045

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 Lillian E C Mcmahon 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 Lillian E C Mcmahon, MD
720 Harrison Ave, Dob 503,
Boston, MA 02118

Ph: () -
Dr Lillian E C Mcmahon, MD
830 Harrison Ave, Moakley, 3rd Floor,
Boston, MA 02118-2905

Ph: (617) 638-6428

Reviews and Comments


Internal Medicine Doctors in Boston, MA

Kaitlyn My-tu Lam, MBBS
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114
Phone: 617-724-7738    
Kui Toh Gerard Leong, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 55 Fruit Street, Massachusetts General Hospital, Boston, MA 02114
Phone: 617-726-8862    
Ruma Rajbhandari,
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 75 Francis St, Boston, MA 02115
Phone: 617-525-6841    
Alaka Ray, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114
Phone: 617-726-2066    
Meghan E Sise, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114
Phone: 617-726-2862    
Aaron Dickstein, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 800 Washington St, Box 233, Boston, MA 02111
Phone: 617-636-5883    Fax: 617-636-9292
Dr. Felicia Elizabeth Patch, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 801 Massachusetts Ave, Crosstown 2, Boston, MA 02118
Phone: 617-414-4376    Fax: 617-414-4676

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.