Quick answers
- Which hospitals does Diana M. Alter work at?
- Medicare's official clinician data lists Diana M. Alter at 1 hospital: Mayo Clinic Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Diana M. Alter see patients?
- Medicare's clinician data lists 5 practice locations, including Scottsdale, AZ and Phoenix, AZ. Call before your visit to confirm the address.
- What is Diana M. Alter's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Diana M. Alter accept Medicare assignment?
- Yes. Medicare's clinician data says Diana M. Alter 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 Diana M. Alter?
- (480) 301-8000, as listed in official Medicare / NPI Registry data.
- What is Diana M. Alter's NPI number?
- 1255910055. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Diana M. Alter works
Medicare's Facility Affiliation Data lists Diana M. Alter at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Mayo Clinic HospitalPhoenix, AZ · Acute Care Hospital · CCN 030103
Practice locations
Addresses where Diana M. Alter is enrolled with Medicare (CMS data updated 2026-10-02).
- 13400 E Shea BlvdScottsdale, AZ 85259 (480) 301‑8000
- 5701 E Mayo BlvdPhoenix, AZ 85054 (480) 342‑4200
- 5777 E Mayo BlvdPhoenix, AZ 85054
- 5777 E Mayo Blvd, Mayo Clinic HospitalPhoenix, AZ 85054
- 5779 E Mayo Blvd, Speciality BuildingPhoenix, AZ 85054 (480) 301‑8000
Group practices
Medicare enrollment lists Diana M. Alter as a member of this group (CMS data updated 2026-10-02).
- Mayo Clinic Arizona1,626 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Scottsdale
Clinicians with the same Medicare primary specialty in Scottsdale, AZ — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2021 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1255910055 |
| 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