Gregory Paul Mackay, APRN
Acute Care Nurse Practitioner · Norwich, CT
Gregory Paul Mackay, APRN is an acute care nurse practitioner with a practice address in Norwich, Connecticut, and NPI 1497436596, issued on Jul 31, 2023. Check the license (Connecticut 12218, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gregory Paul Mackay
- Credential
- APRN
- Primary taxonomy
- Acute Care Nurse Practitioner 363LA2100X
- License number
- 12218 CT
Self-reported in NPPES; status is on the state search - Practice location
- 326 Washington St, Norwich, CT 06360
- Phone
- (860) 889-8331
- Enumerated
- Jul 31, 2023
- Record last updated
- Aug 21, 2023
- Medicare enrollment
- Enrolled (PECOS I20230901003560); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest acute care nurse practitioner records → All 368 in Connecticut → Look up another NPI →
Also registered at 326 Washington St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Gregory Paul Mackay in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 12218Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- The William W Backus HospitalNorwich, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gregory Paul Mackay among 368 acute care nurse practitioner records in Connecticut
Gregory Paul Mackay, APRN is one of 368 acute care nurse practitioner records with a practice address in Connecticut. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 77% of them.
- NPI issued2023 · 77% of these records are older, 15% newer
- In a Medicare fileYes · 85% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated2023 · median 2018 among the 273 with a school on file
- Record last updated2023 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2100X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Acute Care Nurse Practitioner providers in Connecticut
There are 368 acute care nurse practitioner records in Connecticut.
All 368 in Connecticut → Every provider in Norwich → Acute Care Nurse Practitioner nationwide →
The 8 acute care nurse practitioner records with the nearest ZIP codes
- Alison Dwyer, APRNNorwich, CT 063601982565727
- Joseph Ferraro, AGACNPNorwich, CT 063601376390120
- Zoe Hawes, NPNorwich, CT 063601891843488
- Ralph Logan, NPNorwich, CT 063601811616246
- Cheryl Pappas, NPNorwich, CT 063601548636673
- Jayme Reiner, APRNNorwich, CT 063601184514994
- Jennifer Telford, ACNP, PHDNorwich, CT 063601538362082
- Ryan Jay Teopengco, APRNNorwich, CT 063601447930094
Common questions
What is Gregory Paul Mackay, APRN's NPI number?
Gregory Paul Mackay, APRN's National Provider Identifier (NPI) is 1497436596, issued on Jul 31, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Gregory Paul Mackay, APRN located?
The NPPES record lists a practice address at 326 Washington St, Norwich, CT, 06360. Phone: (860) 889-8331. Providers update this record themselves, so call before visiting.
How can I verify Gregory Paul Mackay, APRN's license?
NPPES lists Connecticut license number 12218, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.