Quick answers
- Where does Samuel E. Day see patients?
- Medicare's clinician data lists 3 practice locations, including Green Valley, AZ and Tucson, AZ. Call before your visit to confirm the address.
- What is Samuel E. Day's specialty?
- Medicare lists Radiation Oncology as the primary specialty.
- Does Samuel E. Day accept Medicare assignment?
- Yes. Medicare's clinician data says Samuel E. Day 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 Samuel E. Day?
- (520) 689-6992, as listed in official Medicare / NPI Registry data.
- What is Samuel E. Day's NPI number?
- 1811304652. 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 Samuel E. Day is enrolled with Medicare (CMS data updated 2026-10-02).
- 121 W Esperanza Blvd, Suite 181Green Valley, AZ 85614 (520) 689‑6992
- 3700 E Fort Lowell Rd, Suite 130Tucson, AZ 85716 (520) 689‑7022
- 3945 E Paradise Falls Dr, Suite 105Tucson, AZ 85712 (520) 689‑7022
Group practices
Medicare enrollment lists Samuel E. Day as a member of this group (CMS data updated 2026-10-02).
- Arizona Blood and Cancer Specialists, PLLC15 clinicians in the group
Specialties
- Radiation Oncologyprimary
Other radiation oncologists in Green Valley
Clinicians with the same Medicare primary specialty in Green Valley, AZ — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Colorado School Of Medicine, Denver |
| Graduation year | 2014 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1811304652 |
| 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