Joyce Matsumoto, M.D.
Neurology Physician · Los Angeles, CA
Joyce Matsumoto, M.D. is a neurology physician with a practice address in Los Angeles, California, and NPI 1194868182, issued on Feb 15, 2007. Check the license (California A87710, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Joyce Matsumoto
- Credential
- M.D.
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- A87710 CA
Self-reported in NPPES; status is on the state search - Practice location
- Ucla Division OF Pediatric Neurology, Los Angeles, CA 90095
- Phone
- (310) 825-6196
- Enumerated
- Feb 15, 2007
- Record last updated
- Sep 10, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (310) 825-5834
- Medicaid ID
- 00A877100 CA
- Medicare enrollment
- Enrolled (PECOS I20070606000384); accepts Medicare assignment
- Medical or professional school
- Loma Linda University School Of Medicine, 2002
- Entity
- Type 1 · individual
Also registered at Ucla Division OF Pediatric Neurology
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Meeryo Choe, M.D.Neurology with Special Qualifications in Child Neurology Physician1306124037
Verify Joyce Matsumoto in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A87710Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average neurology physician in 2024
173 Medicare Part D claims for 12 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims.
Most prescribed
- Clobazam35 claims
- Lamotrigine18 claims
- Diazepam17 claims
- Clonidine Hcl13 claims
- Baclofen12 claims
- Epidiolex11 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): 80.5 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).
Industry payments in 2024: $4,170.90
24 payments; by number, the most common kind was food and beverage; the largest payer was Jazz Pharmaceuticals Inc. The 10,858 providers of this specialty with any payment received $8,318.07 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- UC RegentsLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Neurology Physician providers in California
There are 2,339 neurology physician records in California.
Other neurology physician records in California
- Venkat Raghav Aachi, MDThousand Oaks, CA1740640051
- John Aalbers, M.D.San Diego, CA1942262431
- Kafia Abbasi, M.D.French Camp, CA1215114897
- Puya Abbassi, D.O.San Jose, CA1831695428
- Ahmed Abdelhak, MB CHBSan Francisco, CA1053013748
- Diana Abdulrahman, M.D.Pomona, CA1518276880
- Hadi Abou El Hassan, MDLos Angeles, CA1053995720
- John Paul Aboubechara, MD, PHDPalo Alto, CA1205461803
- Saheil AboutalibLong Beach, CA1548551112
- Justin Abraham, M.D., M.B.A.Santa Barbara, CA1225322522
Common questions
What is Joyce Matsumoto, M.D.'s NPI number?
Joyce Matsumoto, M.D.'s National Provider Identifier (NPI) is 1194868182, issued on Feb 15, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Joyce Matsumoto, M.D. located?
The NPPES record lists a practice address at Ucla Division OF Pediatric Neurology, Los Angeles, CA, 90095. Phone: (310) 825-6196. Providers update this record themselves, so call before visiting.
How can I verify Joyce Matsumoto, M.D.'s license?
NPPES lists California license number A87710, 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 Joyce Matsumoto, M.D. prescribe under Medicare Part D?
In 2024, Joyce Matsumoto, M.D. had 173 Medicare Part D claims for 12 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.
What is Joyce Matsumoto, M.D.'s MIPS final score?
The 2023 MIPS final score is 80.5 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.