Quick answers
- Where does John S. Raniolo see patients?
- Medicare's clinician data lists 1 practice location in Phoenix, AZ. Call before your visit to confirm the address.
- What is John S. Raniolo's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty.
- Does John S. Raniolo accept Medicare assignment?
- Yes. Medicare's clinician data says John S. Raniolo 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 John S. Raniolo?
- (623) 879-6000, as listed in official Medicare / NPI Registry data.
- What is John S. Raniolo's NPI number?
- 1952383564. 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 John S. Raniolo is enrolled with Medicare (CMS data updated 2026-10-02).
- 20414 N 27th Ave, Suite 300Phoenix, AZ 85027 (623) 879‑6000
Group practices
Medicare enrollment lists John S. Raniolo as a member of this group (CMS data updated 2026-10-02).
- Southwest Desert Cardiology PC6 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Arizona →
Other cardiologists in Phoenix
Clinicians with the same Medicare primary specialty in Phoenix, AZ — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Philadelphia College Of Osteopathic Medicine |
| Graduation year | 1977 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1952383564 |
| 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 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