Quick answers
- Which hospitals does John N. Mackey work at?
- Medicare's official clinician data lists John N. Mackey at 3 hospitals: Day Kimball Hospital, Lawrence & Memorial Hospital and William W Backus Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John N. Mackey see patients?
- Medicare's clinician data lists 3 practice locations, including Norwich, CT, New London, CT and Plainfield, CT. Call before your visit to confirm the address.
- What is John N. Mackey's specialty?
- Medicare lists Physician Assistant as the primary specialty.
- Does John N. Mackey accept Medicare assignment?
- Yes. Medicare's clinician data says John N. Mackey accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for John N. Mackey?
- (860) 889-7321, as listed in official Medicare / NPI Registry data.
- What is John N. Mackey's NPI number?
- 1275609984. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John N. Mackey works
Medicare's Facility Affiliation Data lists John N. Mackey at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Day Kimball HospitalPutnam, CT · Acute Care Hospital · CCN 070003
- Lawrence & Memorial HospitalNew London, CT · Acute Care Hospital · CCN 070007
- William W Backus HospitalNorwich, CT · Acute Care Hospital · CCN 070024
Practice locations
Addresses where John N. Mackey is enrolled with Medicare (CMS data updated 2026-10-02).
- 26 Lafayette StNorwich, CT 06360 (860) 889‑7321
- 435 Montauk AveNew London, CT 06320 (860) 444‑7400
- 558 Norwich RdPlainfield, CT 06374 (860) 564‑4054
Group practices
Medicare enrollment lists John N. Mackey as a member of these groups (CMS data updated 2026-10-02).
- Healthcall Medical Center, LLC3 clinicians in the group
- Helar Campos MD and Associates Family Medical Center, LLC3 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Norwich
Clinicians with the same Medicare primary specialty in Norwich, CT — not a recommendation.
Clinician information
| Credential | PA |
|---|---|
| Graduation year | 2003 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1275609984 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians