Ethan Stewart, D.O.
NPI 1083989586 · Infectious Disease Physician · San Diego, CA
Enrolled with Medicare as Practitioner - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ethan Stewart, D.O. is a Infectious Disease Physician provider in San Diego, CA (NPI 1083989586).
Provider details
- NPI number
- 1083989586
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 20A11993 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
14 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Doxycycline Monohydrate | 40 | 18 |
| Isavuconazonium Sulfatebrand: Cresemba | 27 | — |
| Fluconazole | 16 | — |
| Cefpodoxime Proxetil | 15 | — |
| Cephalexin | 15 | — |
| Valacyclovir Hclbrand: Valacyclovir | 14 | — |
| Mening Vac A,c,y,w-135 Dip/Pfbrand: Menveo A-C-Y-W-135-Dip | 13 | 13 |
These counts cover prescriptions paid through Medicare Part D in 2024 — they include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-03-16
- Last updated
- 2021-11-08
- Certified
- 2021-11-08
Frequently asked questions
- What is Ethan Stewart's NPI number?
- Ethan Stewart's National Provider Identifier (NPI) is 1083989586, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ethan Stewart's specialty?
- Ethan Stewart is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Ethan Stewart located?
- Ethan Stewart's practice location on file with NPPES is 4647 Zion Ave, San Diego, CA 92120-2507.
- What is Ethan Stewart's phone number?
- The practice phone number listed in the NPPES registry for Ethan Stewart is (619) 528-5000.
- Does Ethan Stewart accept Medicare?
- Ethan Stewart is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ethan Stewart's NPI active?
- Yes — Ethan Stewart's NPI (1083989586) is active in the NPPES registry as of the last update on 2021-11-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.