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John Newton Mackey, PHYSICIANS ASSITANT

Physician Assistant in Plainfield, CT · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1275609984

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Registry record

Entity type Individual (Type 1)
Name John Newton Mackey
Credential PHYSICIANS ASSITANT
Sex Male
Practice address 558 Norwich Road, Plainfield, CT, 06374
Phone (860) 564-4054
Fax (860) 564-0354
Enumeration date Nov 27, 2006
Last updated in NPPES May 27, 2022

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 001429 (CT) Primary

Other identifiers

Identifier Type State Issuer
004224490 Medicaid CT -
290001429CT02 Other CT BC BS

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What is the NPI number for John Mackey?
The National Provider Identifier (NPI) for John Mackey is 1275609984, a Type 1 (individual) record in the CMS NPPES registry.
Where does John Mackey practice?
The practice location on file with NPPES is in Plainfield, CT. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-05-27.