Stewart A Mackie, MD - Medicare Pediatric Medicine in Springfield, MA

Stewart A Mackie, MD is a medicare enrolled "Pediatrics - Pediatric Cardiology" physician in Springfield, Massachusetts. He graduated from medical school in 2007 and has 17 years of diverse experience with area of expertise as Pediatric Medicine. He is a member of the group practice Connecticut Children's Specialty Group, Inc, Connecticut Children's Specialty Group, Inc and his current practice location is 50 Wason Ave, 1st Floor, Springfield, Massachusetts. You can reach out to his office (for appointments etc.) via phone at (413) 794-5437.

Stewart A Mackie is licensed to practice in Massachusetts (license number 254559) 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 1558563551.

Contact Information

Stewart A Mackie, MD
50 Wason Ave, 1st Floor,
Springfield, MA 01107-1274
(413) 794-5437
(413) 794-7408

Map and Direction




Physician's Profile

Full NameStewart A Mackie
GenderMale
SpecialityPediatric Medicine
Experience17 Years
Location50 Wason Ave, Springfield, 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:
  • Stewart A Mackie graduated from medical school in 2007
  NPI Data:
  • NPI Number: 1558563551
  • Provider Enumeration Date: 06/01/2007
  • Last Update Date: 11/15/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 1759525876
  • Enrollment ID: I20130911000421

Medical Identifiers

Medical identifiers for Stewart A Mackie such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1558563551NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208000000XPediatrics LP01101 (Rhode Island)Secondary
2080P0202XPediatrics - Pediatric Cardiology 4301096262 (Michigan)Secondary
2080P0202XPediatrics - Pediatric Cardiology 254559 (Massachusetts)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Connecticut Childrens Medical CenterHartford, CTHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Connecticut Children's Specialty Group, Inc6002720117152
Connecticut Children's Specialty Group, Inc6002720117152

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. Stewart A Mackie allows following entities to bill medicare on his behalf.
Entity NameConnecticut Children's Specialty Group, Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1669448882
PECOS PAC ID: 6002720117
Enrollment ID: O20200323000700

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. Stewart A Mackie 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
Stewart A Mackie, MD
280 Chestnut St, 2nd Floor,
Springfield, MA 01199-1001

Ph: (413) 794-5700
Stewart A Mackie, MD
50 Wason Ave, 1st Floor,
Springfield, MA 01107-1274

Ph: (413) 794-5437

Reviews and Comments


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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.

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