Quick answers
- Which hospitals does Alejandro Diez work at?
- Medicare's official clinician data lists Alejandro Diez at 4 hospitals: Avita Ontario, Genesis Hospital, Mount Carmel East & West and Ohio State University State Health System. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Alejandro Diez see patients?
- Medicare's clinician data lists 8 practice locations, including Columbus, OH and Dublin, OH. Call before your visit to confirm the address.
- What is Alejandro Diez's specialty?
- Medicare lists Nephrology as the primary specialty.
- Does Alejandro Diez accept Medicare assignment?
- Yes. Medicare's clinician data says Alejandro Diez 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.
- Does Alejandro Diez offer telehealth?
- Medicare's clinician data says Alejandro Diez offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Alejandro Diez?
- (614) 293-8714, as listed in official Medicare / NPI Registry data.
- What is Alejandro Diez's NPI number?
- 1669670782. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Alejandro Diez works
Medicare's Facility Affiliation Data lists Alejandro Diez at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Avita OntarioOntario, OH · Acute Care Hospital · CCN 360365
- Genesis HospitalZanesville, OH · Acute Care Hospital · CCN 360039
- Mount Carmel East & WestColumbus, OH · Acute Care Hospital · CCN 360035
- Ohio State University State Health SystemColumbus, OH · Acute Care Hospital · CCN 360085
Practice locations
Addresses where Alejandro Diez is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 8; the Medicare profile lists all.
- 300 W 10th AveColumbus, OH 43210 (614) 293‑8714
- 3900 Stoneridge LnDublin, OH 43017 (614) 366‑5001
- 410 W 10th AveColumbus, OH 43210 (614) 293‑8000
- 410 W 10th Ave, Doan 110Columbus, OH 43210
- 450 W 10th AveColumbus, OH 43210 (614) 293‑8000
Group practices
Medicare enrollment lists Alejandro Diez as a member of this group (CMS data updated 2026-10-02).
- OSU Internal Medicine LLC1,161 clinicians in the group
Specialties
- Nephrologyprimary
Other nephrologists in Columbus
Clinicians with the same Medicare primary specialty in Columbus, OH — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2003 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1669670782 |
| 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