Quick answers
- Which hospitals does John J. Nelson work at?
- Medicare's official clinician data lists John J. Nelson at 2 hospitals: 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 J. Nelson see patients?
- Medicare's clinician data lists 1 practice location in Mystic, CT. Call before your visit to confirm the address.
- What is John J. Nelson's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does John J. Nelson accept Medicare assignment?
- Yes. Medicare's clinician data says John J. Nelson 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.
- Does John J. Nelson offer telehealth?
- Medicare's clinician data says John J. Nelson offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for John J. Nelson?
- (860) 421-1090, as listed in official Medicare / NPI Registry data.
- What is John J. Nelson's NPI number?
- 1376540005. 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 J. Nelson works
Medicare's Facility Affiliation Data lists John J. Nelson at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- 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 J. Nelson is enrolled with Medicare (CMS data updated 2026-10-02).
- 11 Main St, Suite 11 205Mystic, CT 06355 (860) 421‑1090
Group practices
Medicare enrollment lists John J. Nelson as a member of this group (CMS data updated 2026-10-02).
- Value in Prevention of Connecticut PLLC2 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Mystic
Clinicians with the same Medicare primary specialty in Mystic, CT — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Boston University School Of Medicine |
| Graduation year | 1992 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1376540005 |
| 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