Quick answers
- Does Diana C. Riera accept Medicare assignment?
- Yes. Medicare's clinician data says Diana C. Riera accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Diana C. Riera's NPI number?
- 1780623694. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Diana C. Riera is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 17; the Medicare profile lists all.
- 1211 Medical Ctr DrNashville, TN 37232 (615) 322‑5000
- 1215 21st Ave SNashville, TN 37232 (615) 343‑8332
- 1301 22nd Ave SNashville, TN 37232 (615) 322‑3000
- 1301 Medical Ctr DrNashville, TN 37232 (615) 322‑5000
- 1500 Medical Ctr DrNashville, TN 37232 (615) 322‑4751
Group practices
Medicare enrollment lists Diana C. Riera as a member of this group (CMS data updated October 2, 2026).
- Vanderbilt University Medical Center3,567 clinicians in the group
Specialties
- Gastroenterologyprimary
- Pediatric Medicinealso
Other gastroenterologists in Nashville
Clinicians with the same Medicare primary specialty in Nashville, TN — not a recommendation.
Other clinicians in Vanderbilt University Medical Center
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | New York Medical College |
| Graduation year | 2002 (24 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1780623694 |
| 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
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- 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