Quick answers
- Which hospitals does Ramesh K. Ramanathan work at?
- Medicare's official clinician data lists Ramesh K. Ramanathan at 1 hospital: Banner Boswell Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ramesh K. Ramanathan see patients?
- Medicare's clinician data lists 2 practice locations, including Chandler, AZ. Call before your visit to confirm the address.
- What is Ramesh K. Ramanathan's specialty?
- Medicare lists Medical Oncology as the primary specialty, and also Hematology/Oncology.
- Does Ramesh K. Ramanathan accept Medicare assignment?
- Yes. Medicare's clinician data says Ramesh K. Ramanathan 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 Ramesh K. Ramanathan?
- (480) 821-2838, as listed in official Medicare / NPI Registry data.
- What is Ramesh K. Ramanathan's NPI number?
- 1427023548. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ramesh K. Ramanathan works
Medicare's Facility Affiliation Data lists Ramesh K. Ramanathan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Banner Boswell Medical CenterSun City, AZ · Acute Care Hospital · CCN 030061
Practice locations
Addresses where Ramesh K. Ramanathan is enrolled with Medicare (CMS data updated 2026-10-02).
- 685 S Dobson RdChandler, AZ 85224 (480) 821‑2838
- 695 S Dobson RdChandler, AZ 85224 (480) 821‑2838
Group practices
Medicare enrollment lists Ramesh K. Ramanathan as a member of this group (CMS data updated 2026-10-02).
- Ironwood Physicians PC116 clinicians in the group
Specialties
- Medical Oncologyprimary
- Hematology/Oncologyalso
Other oncologists in Arizona
Clinicians with the same Medicare primary specialty in Arizona — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1986 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1427023548 |
| 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