Mari Yasunaga, MD
Emergency Medicine Physician · Loma Linda, CA
Mari Yasunaga, MD is an emergency medicine physician with a practice address in Loma Linda, California, and NPI 1245617075, issued on Apr 30, 2015. Check the license (California A144693, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mari Yasunaga
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- A144693 CA
R6509 TX
Self-reported in NPPES; status is on the state search - Practice location
- 11234 Anderson Street, Loma Linda, CA 92354
- Phone
- (909) 558-4085
- Enumerated
- Apr 30, 2015
- Record last updated
- Jul 25, 2018 (not updated in 8 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 11234 Anderson Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Farah AbuazzamStudent in an Organized Health Care Education/Training Program1013589241
- Marianne Aldridge, M.D.Addiction Medicine (Family Medicine) Physician1336311000
- Adel Alset, MDStudent in an Organized Health Care Education/Training Program1184476970
- Ronald Anthony, NPFamily Nurse Practitioner1902363112
- Rahma Arafa, MDStudent in an Organized Health Care Education/Training Program1992400550
- Alanna Asgeirsson, MDStudent in an Organized Health Care Education/Training Program1306535372
Verify Mari Yasunaga in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A144693Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
37% fewer Medicare Part D claims than the average emergency medicine physician in 2024
142 Medicare Part D claims for 79 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 14 claims were for opioids.
Most prescribed
- Cephalexin22 claims
- Ondansetron Odt21 claims
- Azithromycin11 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Mari Yasunaga among 7,751 emergency medicine physician records in California
Mari Yasunaga, MD is one of 7,751 emergency medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 72% of them.
- NPI issued2015 · 72% of these records are older, 25% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2018 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
168 emergency medicine physician records list a practice address in Loma Linda
They are 168 of the 4,863 NPPES records with a practice address in Loma Linda, and 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Loma Linda → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Robert Bassler, M.D.Loma Linda, CA 923541184675902
- Lance Brown, M.D.Loma Linda, CA 923541376562793
- Deepak Chandwani, M.D.Loma Linda, CA 923541144264177
- Tony Chow, M.D.Loma Linda, CA 923541154340578
- Lynda Daniel-Underwood, M.D.Loma Linda, CA 923541063447241
- Jeff Grange, M.D.Loma Linda, CA 923541801815238
- Steven Green, M.D.Loma Linda, CA 923541619996048
- Gregory Guldner, M.D.Loma Linda, CA 923541932125523
Common questions
What is Mari Yasunaga, MD's NPI number?
Mari Yasunaga, MD's National Provider Identifier (NPI) is 1245617075, issued on Apr 30, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Mari Yasunaga, MD located?
The NPPES record lists a practice address at 11234 Anderson Street, Loma Linda, CA, 92354. Phone: (909) 558-4085. Providers update this record themselves, so call before visiting.
How can I verify Mari Yasunaga, MD's license?
NPPES lists California license number A144693, 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.
How much does Mari Yasunaga, MD prescribe under Medicare Part D?
In 2024, Mari Yasunaga, MD had 142 Medicare Part D claims for 79 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
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.