Dr Jennifer Williams Mack, MD MPH - Medicare Pediatrics in Boston, MA

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Dr Jennifer Williams Mack, MD MPH is a medicare enrolled "Pediatrics - Pediatric Hematology-oncology" physician in Boston, Massachusetts. Her current practice location is 44 Binney St, 454 Suite 21, Boston, Massachusetts. You can reach out to her office (for appointments etc.) via phone at (617) 632-6818.

Dr Jennifer Williams Mack is licensed to practice in Massachusetts (license number 212529) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1225006398.

Contact Information

Dr Jennifer Williams Mack, MD MPH
44 Binney St, 454 Suite 21,
Boston, MA 02115
(617) 632-6818
(617) 632-2270

Map and Direction




Physician's Profile

Full NameDr Jennifer Williams Mack
GenderFemale
SpecialityPediatrics - Pediatric Hematology-oncology
Location44 Binney St, Boston, Massachusetts
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1225006398
  • Provider Enumeration Date: 03/14/2006
  • Last Update Date: 03/13/2012
  Medicare PECOS Information:
  • PECOS PAC ID: 4385630649
  • Enrollment ID: I20040422000273

Medical Identifiers

Medical identifiers for Dr Jennifer Williams Mack such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1225006398NPI-NPPES
J27212OtherMABLUE CROSS BLUE SHIELD
AA11960OtherHPHC
212529OtherTUFTS
2036436MedicaidMA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2080P0207XPediatrics - Pediatric Hematology-oncology 212529 (Massachusetts)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. Dr Jennifer Williams Mack allows following entities to bill medicare on her behalf.
Entity NameDana-farber Cancer Institute, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1851333686
PECOS PAC ID: 9133038904
Enrollment ID: O20040223000228

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 Jennifer Williams Mack 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 Jennifer Williams Mack, MD MPH
450 Brookline Ave, Dana 11,
Boston, MA 02215-5418

Ph: (617) 632-6818		Dr Jennifer Williams Mack, MD MPH
44 Binney St, 454 Suite 21,
Boston, MA 02115

Ph: (617) 632-6818

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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