Mario Youssef, PHYSICIAN ASSISTANT
NPI 1821957010 · Physician Assistant · Torrance, CA
Mario Youssef, PHYSICIAN ASSISTANT is a Physician Assistant provider in Torrance, CA (NPI 1821957010).
Provider details
- NPI number
- 1821957010
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PHYSICIAN ASSISTANT
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
Under 1 yr in registry
- Profile completeness38% of score
83% 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
- 2026-01-21
- Last updated
- 2026-01-21
- Certified
- 2026-01-21
Frequently asked questions
- What is Mario Youssef's NPI number?
- Mario Youssef's National Provider Identifier (NPI) is 1821957010, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mario Youssef's specialty?
- Mario Youssef is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mario Youssef located?
- Mario Youssef's practice location on file with NPPES is 2748 Pacific Coast Hwy # 1028, Torrance, CA 90505-7002.
- What is Mario Youssef's phone number?
- The practice phone number listed in the NPPES registry for Mario Youssef is (424) 222-9821.
- Is Mario Youssef's NPI active?
- Yes — Mario Youssef's NPI (1821957010) is active in the NPPES registry as of the last update on 2026-01-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.