Quick answers
- Which hospitals does Theodore Tzeremas work at?
- Medicare's official clinician data lists Theodore Tzeremas at 3 hospitals: Banner Ocotillo Medical Center, Chandler Regional Medical Center and Mercy Gilbert Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Theodore Tzeremas see patients?
- Medicare's clinician data lists 2 practice locations, including Sun Lakes, AZ and Carefree, AZ. Call before your visit to confirm the address.
- What is Theodore Tzeremas's specialty?
- Medicare lists Nephrology as the primary specialty, and also Internal Medicine.
- Does Theodore Tzeremas accept Medicare assignment?
- Yes. Medicare's clinician data says Theodore Tzeremas 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 Theodore Tzeremas offer telehealth?
- Medicare's clinician data says Theodore Tzeremas offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Theodore Tzeremas?
- (480) 610-6100, as listed in official Medicare / NPI Registry data.
- What is Theodore Tzeremas's NPI number?
- 1831252469. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Theodore Tzeremas works
Medicare's Facility Affiliation Data lists Theodore Tzeremas at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Banner Ocotillo Medical CenterChandler, AZ · Acute Care Hospital · CCN 030147
- Chandler Regional Medical CenterChandler, AZ · Acute Care Hospital · CCN 030036
- Mercy Gilbert Medical CenterGilbert, AZ · Acute Care Hospital · CCN 030119
Practice locations
Addresses where Theodore Tzeremas is enrolled with Medicare (CMS data updated 2026-10-02).
- 10440 E Riggs Rd, Suite 250Sun Lakes, AZ 85248 (480) 610‑6100
- 36889 N Tom Darlington Dr, Suite A4Carefree, AZ 85377 (480) 610‑6100
Group practices
Medicare enrollment lists Theodore Tzeremas as a member of this group (CMS data updated 2026-10-02).
- Southwest Kidney Institute PLC101 clinicians in the group
Specialties
- Nephrologyprimary
- Internal Medicinealso
Other nephrologists in Arizona
Clinicians with the same Medicare primary specialty in Arizona — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2002 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1831252469 |
| 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