Dr William A Mehan Jr, MD - Medicare Diagnostic Radiology in Boston, MA

Dr William A Mehan Jr, MD is a medicare enrolled "Radiology - Diagnostic Radiology" physician in Boston, Massachusetts. He went to Mcgill University, Faculty Of Medicine and graduated in 2006 and has 18 years of diverse experience with area of expertise as Diagnostic Radiology. He is a member of the group practice Massachusetts General Physicians Organization Inc and his current practice location is 800 Washington Street, Boston, Massachusetts. You can reach out to his office (for appointments etc.) via phone at (617) 636-5000.

Dr William A Mehan Jr is licensed to practice in Massachusetts (license number 245931) 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 1942421276.

Contact Information

Dr William A Mehan Jr, MD
800 Washington Street,
Boston, MA 02111
(617) 636-5000
Not Available

Map and Direction




Physician's Profile

Full NameDr William A Mehan Jr
GenderMale
SpecialityDiagnostic Radiology
Experience18 Years
Location800 Washington Street, Boston, Massachusetts
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 William A Mehan Jr attended and graduated from Mcgill University, Faculty Of Medicine in 2006
  NPI Data:
  • NPI Number: 1942421276
  • Provider Enumeration Date: 05/02/2007
  • Last Update Date: 07/16/2013
  Medicare PECOS Information:
  • PECOS PAC ID: 1052589306
  • Enrollment ID: I20110713000126

Medical Identifiers

Medical identifiers for Dr William A Mehan Jr such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1942421276NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2085R0202XRadiology - Diagnostic Radiology 245931 (Massachusetts)Primary
390200000XStudent In An Organized Health Care Education/training Program (* (Not Available))Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Massachusetts General HospitalBoston, MAHospital
Newton-wellesley HospitalNewton, MAHospital
Martha's Vineyard Hospital IncOak bluffs, MAHospital
North Shore Medical Center -Salem, MAHospital
Wentworth-douglass HospitalDover, NHHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Massachusetts General Physicians Organization Inc24663658203084

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 William A Mehan Jr allows following entities to bill medicare on his behalf.
Entity NameMassachusetts General Physicians Organization Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1801874573
PECOS PAC ID: 2466365820
Enrollment ID: O20031111000434
Entity NameHarbor Medical Associates Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1124079561
PECOS PAC ID: 2466356209
Enrollment ID: O20040719000954
Entity NameThe General Hospital Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023049236
PECOS PAC ID: 6507803806
Enrollment ID: O20080313000351
Entity NameBrigham & Womens Physicians Organization Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1033535497
PECOS PAC ID: 3870405988
Enrollment ID: O20150107001260

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 William A Mehan Jr 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 William A Mehan Jr, MD
800 Washington St. Box 1013,
Boston, MA 02111

Ph: (617) 636-5000
Dr William A Mehan Jr, MD
800 Washington Street,
Boston, MA 02111

Ph: (617) 636-5000

Reviews and Comments


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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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