Grant Masaru Yasui, MD
Anesthesiology Physician · Anaheim, CA
Grant Masaru Yasui, MD is an anesthesiology physician with a practice address in Anaheim, California, and NPI 1467607929, issued on Nov 25, 2008. Check the license (California A92789, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Grant Masaru Yasui
- Credential
- MD
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- A92789 CA
Self-reported in NPPES; status is on the state search - Practice location
- 441 N Lakeview Ave, Anaheim, CA 92807
- Phone
- (888) 988-2800
- Enumerated
- Nov 25, 2008
- Record last updated
- Dec 3, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20090115000768); accepts Medicare assignment
- Medical or professional school
- Creighton University School Of Medicine, 2004
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 7,571 in California → Look up another NPI →
Also registered at 441 N Lakeview Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Mark Abramson, MDInternal Medicine Physician1396812202
- Suzanne Ackley, MDNeuromusculoskeletal Medicine & OMM Physician1740351667
- Carol Ahmed, D.O.Family Medicine Physician1598962961
Verify Grant Masaru Yasui in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A92789Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through 3 group practices
- Anesthesia And Analgesia Medical Group IncSanta Rosa, CA
- Pacific Anesthesia Medical AssociatesLong Beach, CA
- Southern California Permanente Medical GroupAnaheim, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Grant Masaru Yasui among 7,571 anesthesiology physician records in California
Grant Masaru Yasui, 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 2008, is newer than 57% of them.
- NPI issued2008 · 57% of these records are older, 39% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2004 · median 2006 among the 4,868 with a school on file
- Record last updated2021 · 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.
All 7,571 in California → Every provider in Anaheim → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Thomas Booy, MDAnaheim, CA 928071790856748
- William Cain, M.D.Anaheim, CA 928071356310973
- Sung Choi, M.D.Anaheim, CA 928071336251701
- Donny Chung, MDAnaheim, CA 928071063583987
- Peter Jong, MDAnaheim, CA 928071528135415
- David Leong, MDAnaheim, CA 928071558432443
- Wayne Liang, M.D.Anaheim, CA 928071952317489
- Sepand Mansouri, MDAnaheim, CA 928071265509152
Common questions
What is Grant Masaru Yasui, MD's NPI number?
Grant Masaru Yasui, MD's National Provider Identifier (NPI) is 1467607929, issued on Nov 25, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Grant Masaru Yasui, MD located?
The NPPES record lists a practice address at 441 N Lakeview Ave, Anaheim, CA, 92807. Phone: (888) 988-2800. Providers update this record themselves, so call before visiting.
How can I verify Grant Masaru Yasui, MD's license?
NPPES lists California license number A92789, 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.