Quick answers
- Which hospitals does Johnathan M. Chambers work at?
- Medicare's official clinician data lists Johnathan M. Chambers at 2 hospitals: UMass Memorial Healthalliance Hospitals and UMass Memorial Medical Center/University Campus. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Johnathan M. Chambers see patients?
- Medicare's clinician data lists 2 practice locations, including Southbridge, MA and Oxford, MA. Call before your visit to confirm the address.
- What is Johnathan M. Chambers's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Johnathan M. Chambers accept Medicare assignment?
- Yes. Medicare's clinician data says Johnathan M. Chambers 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 Johnathan M. Chambers?
- (508) 909-8550, as listed in official Medicare / NPI Registry data.
- What is Johnathan M. Chambers's NPI number?
- 1912583147. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Johnathan M. Chambers works
Medicare's Facility Affiliation Data lists Johnathan M. Chambers at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- UMass Memorial Healthalliance HospitalsLeominster, MA · Acute Care Hospital · CCN 220001
- UMass Memorial Medical Center/University CampusWorcester, MA · Acute Care Hospital · CCN 220163
Practice locations
Addresses where Johnathan M. Chambers is enrolled with Medicare (CMS data updated 2026-10-02).
- 164 S StSouthbridge, MA 01550 (508) 909‑8550
- 78 Sutton AveOxford, MA 01540 (508) 499‑1760
Group practices
Medicare enrollment lists Johnathan M. Chambers as a member of this group (CMS data updated 2026-10-02).
- UMass Memorial Medical Group Inc2,516 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Southbridge
Clinicians with the same Medicare primary specialty in Southbridge, MA — not a recommendation.
Clinician information
| Graduation year | 2022 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1912583147 |
| 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