Yonathan Ararso, MD,MS
NPI 1558941427 · Emergency Medicine Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Yonathan Ararso, MD,MS is a Emergency Medicine Physician provider in San Francisco, CA (NPI 1558941427).
Provider details
- NPI number
- 1558941427
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD,MS
- Sex
- Male
- Sole proprietor
- No
- License
- A194602 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
5 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2021-04-13
- Last updated
- 2025-03-04
- Certified
- 2025-02-22
Frequently asked questions
- What is Yonathan Ararso's NPI number?
- Yonathan Ararso's National Provider Identifier (NPI) is 1558941427, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Yonathan Ararso's specialty?
- Yonathan Ararso is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Yonathan Ararso located?
- Yonathan Ararso's practice location on file with NPPES is 505 Parnassus Ave Rm M24, San Francisco, CA 94143-2204.
- What is Yonathan Ararso's phone number?
- The practice phone number listed in the NPPES registry for Yonathan Ararso is (415) 353-1529.
- Does Yonathan Ararso accept Medicare?
- Yonathan Ararso is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Yonathan Ararso's NPI active?
- Yes — Yonathan Ararso's NPI (1558941427) is active in the NPPES registry as of the last update on 2025-03-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.