Quick answers
- Which hospitals does Renato Y. Mandanas work at?
- Medicare's official clinician data lists Renato Y. Mandanas at 1 hospital: Oswego Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Renato Y. Mandanas see patients?
- Medicare's clinician data lists 2 practice locations, including Oswego, NY. Call before your visit to confirm the address.
- What is Renato Y. Mandanas's specialty?
- Medicare lists Internal Medicine as the primary specialty, and also Family Practice.
- Does Renato Y. Mandanas accept Medicare assignment?
- Yes. Medicare's clinician data says Renato Y. Mandanas 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 Renato Y. Mandanas?
- (315) 349-5511, as listed in official Medicare / NPI Registry data.
- What is Renato Y. Mandanas's NPI number?
- 1154492296. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Renato Y. Mandanas works
Medicare's Facility Affiliation Data lists Renato Y. Mandanas at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Oswego HospitalOswego, NY · Acute Care Hospital · CCN 330218
Practice locations
Addresses where Renato Y. Mandanas is enrolled with Medicare (CMS data updated 2026-10-02).
- 110 W 6th StOswego, NY 13126 (315) 349‑5511
- 144 W 5th StOswego, NY 13126 (315) 342‑1765
Group practices
Medicare enrollment lists Renato Y. Mandanas as a member of this group (CMS data updated 2026-10-02).
- Oswego Hospital60 clinicians in the group
Specialties
- Internal Medicineprimary
- Family Practicealso
Other internal medicine doctors in Oswego
Clinicians with the same Medicare primary specialty in Oswego, NY — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1979 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1154492296 |
| 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