Aaron Yim, MD
NPI 1881274744 · Anesthesiology Physician · Laguna Hills, CA
Enrolled with Medicare as Practitioner - Anesthesiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Aaron Yim, MD is a Anesthesiology Physician provider in Laguna Hills, CA (NPI 1881274744).
Provider details
- NPI number
- 1881274744
- Entity type
- Individual
- Primary specialty
- Anesthesiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A192568 (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
5 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 300 W Huntington DrArcadia, CA 91007-3402Phone: (626) 574-3540
Registry dates
- Enumerated
- 2021-04-13
- Last updated
- 2025-11-11
- Certified
- 2025-11-11
Frequently asked questions
- What is Aaron Yim's NPI number?
- Aaron Yim's National Provider Identifier (NPI) is 1881274744, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Aaron Yim's specialty?
- Aaron Yim is listed in the NPPES registry with a primary specialty of Anesthesiology Physician (Allopathic & Osteopathic Physicians).
- Where is Aaron Yim located?
- Aaron Yim's practice location on file with NPPES is 24451 Health Center Dr, Laguna Hills, CA 92653-3689.
- What is Aaron Yim's phone number?
- The practice phone number listed in the NPPES registry for Aaron Yim is (949) 837-4500.
- Does Aaron Yim accept Medicare?
- Aaron Yim is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Aaron Yim's NPI active?
- Yes — Aaron Yim's NPI (1881274744) is active in the NPPES registry as of the last update on 2025-11-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.