Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Gregory Paul Mackay, APRN

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1497436596

Gregory Paul Mackay, APRN is a Nurse Practitioner in Norwich, Connecticut. Qualified in 2023, 3 years ago. Practices with The William W Backus Hospital, a 247-clinician group and accepts Medicare assignment. Licensed in Connecticut.

Years since qualifying
3
Licensed in
CT
In the registry since
2023
Specialties on file
2
What do these letters mean?
APRN — Advanced Practice Registered Nurse
The umbrella licence covering nurse practitioners, midwives, anaesthetists and clinical nurse specialists.

See every abbreviation used in this directory →

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Practice location Address checks out

Student / training record This NPI belongs to someone enrolled in a health care training programme. It carries no licence and no practice of its own, so no address or phone number is published for it.

Norwich, CT

No coordinates on file. Search this address in Google Maps

Specialties & licences

Acute Care Nurse Practitioner (primary) Taxonomy 363LA2100X · Licence 12218 (CT)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1497436596
Entity typeIndividual (Type 1)
GenderMale
Credentials APRN
Sole proprietorNo
NPI enumeratedJuly 31, 2023
Last updated in NPPESAugust 21, 2023
Certification dateAugust 21, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2023 (3 years in practice)
Group practice The William W Backus Hospital — 247 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients49
Services billed 78 a service is one billed item, such as a visit, a test or a procedure
Average patient age78

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at The William W Backus Hospital

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 247 clinicians in the practice; 12 are shown here.

Other providers in Norwich