Quick answers
- Which hospitals does John E. Rivera Jr. work at?
- Medicare's official clinician data lists John E. Rivera Jr. at 2 hospitals: Saint Mary's Hospital and The Hospital of Central Connecticut. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John E. Rivera Jr. see patients?
- Medicare's clinician data lists 2 practice locations, including Milldale, CT. Call before your visit to confirm the address.
- What is John E. Rivera Jr.'s specialty?
- Medicare lists Family Practice as the primary specialty.
- Does John E. Rivera Jr. accept Medicare assignment?
- Yes. Medicare's clinician data says John E. Rivera Jr. 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 E. Rivera Jr. offer telehealth?
- Medicare's clinician data says John E. Rivera Jr. offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for John E. Rivera Jr.?
- (860) 621-5554, as listed in official Medicare / NPI Registry data.
- What is John E. Rivera Jr.'s NPI number?
- 1720044811. 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 E. Rivera Jr. works
Medicare's Facility Affiliation Data lists John E. Rivera Jr. at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Saint Mary's HospitalWaterbury, CT · Acute Care Hospital · CCN 070016
- The Hospital of Central ConnecticutNew Britain, CT · Acute Care Hospital · CCN 070035
Practice locations
Addresses where John E. Rivera Jr. is enrolled with Medicare (CMS data updated 2026-10-02).
- 1753 Meriden Waterbury Rd, PO Box 770Milldale, CT 06467 (860) 621‑5554
- PO Box, Suite 770Milldale, CT 06467
Specialties
- Family Practiceprimary
Other family doctors in Connecticut
Clinicians with the same Medicare primary specialty in Connecticut — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Warren Alpert Medical School Of Brown University |
| Graduation year | 2001 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1720044811 |
| 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