Joseph Malhis, DO
Internal Medicine Physician · Whittier, CA
Joseph Malhis, DO is an internal medicine physician with a practice address in Whittier, California, and NPI 1124581830, issued on Apr 9, 2019. Check the license (California 20179, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Joseph Malhis
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 20179 CA
Self-reported in NPPES; status is on the state search - Practice location
- 12401 Washington Blvd, Whittier, CA 90602
- Phone
- (562) 698-0811
- Enumerated
- Apr 9, 2019
- Record last updated
- Aug 25, 2022
- Medicare enrollment
- Enrolled (PECOS I20221203000486); accepts Medicare assignment
- Medical or professional school
- Kansas City University Of Med & Biosciences, College Of Osteo Med, 2019
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 12401 Washington Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Johanna Aceves, NPNurse Practitioner1841415502
- Kariann Akiyama, MS, RDN, CNSCRegistered Dietitian1639870009
- Syed Ali, MDAnesthesiology Physician1295775625
- Jamee Ambariantz, PAPhysician Assistant1790726123
- Talin Azilazyan, PHARMDPharmacist1700739372
Verify Joseph Malhis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20179Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% fewer Medicare Part D claims than the average internal medicine physician in 2024
502 Medicare Part D claims for 189 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 28 claims were for opioids.
Most prescribed
- Furosemide26 claims
- Hydrocodone-Acetaminophen21 claims
- Eliquis19 claims
- Carvedilol16 claims
- Cefuroxime16 claims
- Metoprolol Tartrate16 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 76.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Pih Health PhysiciansWhittier, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joseph Malhis among 17,696 internal medicine physician records in California
Joseph Malhis, DO is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 86% of them.
- NPI issued2019 · 86% of these records are older, 11% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2019 · median 2004 among the 11,065 with a school on file
- Record last updated2022 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
49 internal medicine physician records list a practice address in Whittier
They are 49 of the 2,836 NPPES records with a practice address in Whittier, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Whittier → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Julie Borba, M.D.Whittier, CA 906021306033113
- D Cotton, MDWhittier, CA 906021053328757
- Cheryl Rachel EspirituWhittier, CA 906021386853323
- Rami Horani, MDWhittier, CA 906021225340227
- Jerry Huang, MDWhittier, CA 906021366410714
- Rajnish Jandial, M.D.Whittier, CA 906021639102346
- Gang Li, MDWhittier, CA 906021346284353
- Daksha Mehta, M.D.Whittier, CA 906021982622346
Common questions
What is Joseph Malhis, DO's NPI number?
Joseph Malhis, DO's National Provider Identifier (NPI) is 1124581830, issued on Apr 9, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Joseph Malhis, DO located?
The NPPES record lists a practice address at 12401 Washington Blvd, Whittier, CA, 90602. Phone: (562) 698-0811. Providers update this record themselves, so call before visiting.
How can I verify Joseph Malhis, DO's license?
NPPES lists California license number 20179, 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 Joseph Malhis, DO prescribe under Medicare Part D?
In 2024, Joseph Malhis, DO had 502 Medicare Part D claims for 189 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Joseph Malhis, DO's MIPS final score?
The 2023 MIPS final score is 76.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.