Quick answers
- Which hospitals does Spiros Mitsopoulos work at?
- Medicare's official clinician data lists Spiros Mitsopoulos at 1 hospital: Elliot Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Spiros Mitsopoulos see patients?
- Medicare's clinician data lists 1 practice location in Manchester, NH. Call before your visit to confirm the address.
- What is Spiros Mitsopoulos's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Spiros Mitsopoulos accept Medicare assignment?
- Yes. Medicare's clinician data says Spiros Mitsopoulos 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 Spiros Mitsopoulos?
- (603) 683-8230, as listed in official Medicare / NPI Registry data.
- What is Spiros Mitsopoulos's NPI number?
- 1720034390. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Spiros Mitsopoulos works
Medicare's Facility Affiliation Data lists Spiros Mitsopoulos at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Elliot HospitalManchester, NH · Acute Care Hospital · CCN 300012
Practice locations
Addresses where Spiros Mitsopoulos is enrolled with Medicare (CMS data updated 2026-10-02).
- 445 Cypress St, Suite 9Manchester, NH 03103 (603) 683‑8230
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Manchester
Clinicians with the same Medicare primary specialty in Manchester, NH — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Geisel School Of Medicine At Dartmouth |
| Graduation year | 1984 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1720034390 |
| 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