John Newton Mackey, Physicians, Assitant

John Mackey practices at Plainfield Walk In And Medical Center in Plainfield, Connecticut.

John Mackey's NPI, 1275609984, was assigned on November 27, 2006. John Mackey holds Connecticut license 001429.

John Mackey's primary practice is Plainfield Walk in and Medical Center, at 558 Norwich Rd, Plainfield, CT 06374-1725. The practice phone is (860) 564-4054.

John Mackey's primary practice is Plainfield Walk In And Medical Center in Plainfield, Connecticut. John Mackey is also affiliated with Lawrence + Memorial Hospital. The medical group on file is Plainfield Walk In and Medical Center. Dmand AI also links John Mackey to 2 more hospitals, 1 group practice or clinic, 1 home health agency and 1 medical group, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where John Mackey practices, 6 sites in all. Vendor and product names are available with a free account.

Physician assistant is John Mackey's primary specialty in the NPI Registry, under taxonomy code 363A00000X. John Mackey is licensed in Connecticut.

CMS counts 159 Medicare patients who saw John Mackey in 2024. The largest group is 65 to 74, with 72 patients. 66% of them have high cholesterol, and 65% have high blood pressure. 28% are also on Medicaid. Their average risk score is 0.97, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts John Mackey's median patient age at 59, with 42% women.

In 2024, John Mackey wrote 4,255 Medicare Part D claims for 411 patients. 82% of them were for generic drugs.

John Mackey accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

CMS Open Payments shows 86 general payments to John Mackey from 20 drug and device companies in 2025. Food and beverage make up the largest share, 99% of the total. AstraZeneca Pharmaceuticals LP paid the most, $243.