Quick answers
- Which hospitals does Yumi Oh work at?
- Medicare's official clinician data lists Yumi Oh at 2 hospitals: 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 Yumi Oh see patients?
- Medicare's clinician data lists 2 practice locations, including Sun Lakes, AZ. Call before your visit to confirm the address.
- What is Yumi Oh's specialty?
- Medicare lists Infectious Disease as the primary specialty, and also Internal Medicine.
- Does Yumi Oh accept Medicare assignment?
- Yes. Medicare's clinician data says Yumi Oh 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 Yumi Oh?
- (480) 478-9029, as listed in official Medicare / NPI Registry data.
- What is Yumi Oh's NPI number?
- 1801107644. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Yumi Oh works
Medicare's Facility Affiliation Data lists Yumi Oh at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Chandler Regional Medical CenterChandler, AZ · Acute Care Hospital · CCN 030036
- Mercy Gilbert Medical CenterGilbert, AZ · Acute Care Hospital · CCN 030119
Practice locations
Addresses where Yumi Oh is enrolled with Medicare (CMS data updated 2026-10-02).
- 10450 E Riggs RdSun Lakes, AZ 85248 (480) 478‑9029
- 10450 E Riggs Rd, Suite 111Sun Lakes, AZ 85248 (480) 478‑9029
Specialties
- Infectious Diseaseprimary
- Internal Medicinealso
Other infectious disease doctors in Arizona
Clinicians with the same Medicare primary specialty in Arizona — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2005 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1801107644 |
| 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