Quick answers
- Which hospitals does Sylvia Diaz work at?
- Medicare's official clinician data lists Sylvia Diaz at 5 hospitals: Canton-Potsdam Hospital, Charleston Area Medical Center, SLHS Massena, Inc, The University of Vermont Health Network - Champl… and The University of Vermont Health Network-Alice Hy. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Sylvia Diaz see patients?
- Medicare's clinician data lists 2 practice locations, including Charleston, WV. Call before your visit to confirm the address.
- What is Sylvia Diaz's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Sylvia Diaz accept Medicare assignment?
- Yes. Medicare's clinician data says Sylvia Diaz 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 Sylvia Diaz?
- (304) 351-3961, as listed in official Medicare / NPI Registry data.
- What is Sylvia Diaz's NPI number?
- 1083880009. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Sylvia Diaz works
Medicare's Facility Affiliation Data lists Sylvia Diaz at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Canton-Potsdam HospitalPotsdam, NY · Acute Care Hospital · CCN 330197
- Charleston Area Medical CenterCharleston, WV · Acute Care Hospital · CCN 510022
- SLHS Massena, IncMassena, NY · Critical Access Hospital · CCN 331322
- The University of Vermont Health Network - Champl…Plattsburgh, NY · Acute Care Hospital · CCN 330250
- The University of Vermont Health Network-Alice HyMalone, NY · Critical Access Hospital · CCN 331321
Practice locations
Addresses where Sylvia Diaz is enrolled with Medicare (CMS data updated 2026-10-02).
- 3100 Maccorkle Ave SE, Suite 810Charleston, WV 25304 (304) 351‑3961
- 501 Morris StCharleston, WV 25301 (304) 388‑7823
Group practices
Medicare enrollment lists Sylvia Diaz as a member of this group (CMS data updated 2026-10-02).
- Charleston Area Medical Center Inc985 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Charleston
Clinicians with the same Medicare primary specialty in Charleston, WV — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1999 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1083880009 |
| 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