Quick answers
- Which hospitals does Ethan R. Stewart work at?
- Medicare's official clinician data lists Ethan R. Stewart at 1 hospital: Kaiser Foundation Hospital - San Diego. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Ethan R. Stewart see patients?
- Medicare's clinician data lists 2 practice locations, including San Diego, CA. Call before your visit to confirm the address.
- What is Ethan R. Stewart's specialty?
- Medicare lists Infectious Disease as the primary specialty.
- Does Ethan R. Stewart accept Medicare assignment?
- Yes. Medicare's clinician data says Ethan R. Stewart 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 Ethan R. Stewart?
- (619) 528-5000, as listed in official Medicare / NPI Registry data.
- What is Ethan R. Stewart's NPI number?
- 1083989586. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Ethan R. Stewart works
Medicare's Facility Affiliation Data lists Ethan R. Stewart at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Kaiser Foundation Hospital - San DiegoSan Diego, CA · Acute Care Hospital · CCN 050515
Practice locations
Addresses where Ethan R. Stewart is enrolled with Medicare (CMS data updated 2026-10-02).
- 4647 Zion AveSan Diego, CA 92120 (619) 528‑5000
- 9455 Clairemont Mesa BlvdSan Diego, CA 92123 (858) 573‑1504
Group practices
Medicare enrollment lists Ethan R. Stewart as a member of this group (CMS data updated 2026-10-02).
- Southern California Permanente Medical Group11,293 clinicians in the group
Specialties
- Infectious Diseaseprimary
Other infectious disease doctors in San Diego
Clinicians with the same Medicare primary specialty in San Diego, CA — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2010 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1083989586 |
| 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