NPPES file of Aug 9, 2026

Aaron Matthew Yim, MD

Anesthesiology Physician · Laguna Hills, CA

Aaron Matthew Yim, MD is an anesthesiology physician with a practice address in Laguna Hills, California, and NPI 1881274744, issued on Apr 13, 2021. Check the license (California A192568, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1881274744
Name
Aaron Matthew Yim
Credential
MD
Primary taxonomy
Anesthesiology Physician 207L00000X
License number
A192568 CA
Self-reported in NPPES; status is on the state search
Practice location
24451 Health Center Dr, Laguna Hills, CA 92653
Phone
(949) 837-4500
Enumerated
Apr 13, 2021
Record last updated
Nov 11, 2025
Medicare enrollment
Enrolled (PECOS I20251014002613); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 24451 Health Center Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Jessica Alva, R.N.F.A.Registered Nurse First Assistant1265848733
  2. Jordan Amato, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1154279511
  3. Dwight Arakaki, M.DEmergency Medicine Physician1376653360
  4. Saryna Bahadarakhann, RNRegistered Nurse1861775116
  5. Joshua Bobko, MDEmergency Medicine Physician1235397621
  6. Brianna Brown, LCSWClinical Social Worker1144982000

Verify Aaron Matthew Yim in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A192568
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through 3 group practices

  1. California Anesthesia Associates Medical Group IncLaguna Hills, CA
  2. Cep America - Anesthesia PCLaguna Hills, CA
  3. Usc Care Medical Group IncLos Angeles, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Aaron Matthew Yim among 7,571 anesthesiology physician records in California

Aaron Matthew Yim, MD is one of 7,571 anesthesiology physician records with a practice address in California. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 95% of them.

  • NPI issued2021 · 95% of these records are older, 3% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated2021 · median 2006 among the 4,868 with a school on file
  • Record last updated2025 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Anesthesiology Physician providers in California

There are 7,571 anesthesiology physician records in California.

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Shahriar Alikhani, MDLaguna Hills, CA 926531861446833
  2. Vitus Chow, M.D.Laguna Hills, CA 926531619991965
  3. David Deyhimy, M.D.Laguna Hills, CA 926531376528489
  4. Stephen Garber, M.D.Laguna Hills, CA 926531396768321
  5. Ernest Hayward, M.D.Laguna Hills, CA 926531659394401
  6. Richard Heyendal, M.D.Laguna Hills, CA 926531952324790
  7. Robert Jones, M.D.Laguna Hills, CA 926531962425892
  8. Daniel Katz, M.D.Laguna Hills, CA 926531467474544

Common questions

What is Aaron Matthew Yim, MD's NPI number?

Aaron Matthew Yim, MD's National Provider Identifier (NPI) is 1881274744, issued on Apr 13, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Aaron Matthew Yim, MD located?

The NPPES record lists a practice address at 24451 Health Center Dr, Laguna Hills, CA, 92653. Phone: (949) 837-4500. Providers update this record themselves, so call before visiting.

How can I verify Aaron Matthew Yim, MD's license?

NPPES lists California license number A192568, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.