Gail Patrice Ishiyama, MD
Neurology Physician · Los Angeles, CA
Gail Patrice Ishiyama, MD is a neurology physician with a practice address in Los Angeles, California, and NPI 1639194038, issued on Jul 13, 2006. Check the license (California G80933, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Gail Patrice Ishiyama
- Credential
- MD
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- G80933 CA
Self-reported in NPPES; status is on the state search - Practice location
- 300 Medical Plaza, Los Angeles, CA 90095
- Phone
- (310) 794-1195
- Enumerated
- Jul 13, 2006
- Record last updated
- Jan 17, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (310) 794-7491
- Medicaid ID
- 00G809330 CA
- Medicare enrollment
- Enrolled (PECOS I20110531000094); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 1992
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
Also registered at 300 Medical Plaza
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Gail Patrice Ishiyama in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G80933Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average neurology physician in 2024
96 Medicare Part D claims for 36 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D.
Most prescribed
- Gabapentin14 claims
- Meclizine Hcl14 claims
- Acetazolamide13 claims
- Sumatriptan13 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): 86.3 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).
Industry payments in 2024: $121.22
1 payment: food and beverage; the largest payer was Cochlear Americas. 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 2 group practices
- The Regents OF The University OF CaliforniaLos Angeles, CA
- The Regents OF The University OF CaliforniaLos 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 Gail Patrice Ishiyama, MD's NPI number?
Gail Patrice Ishiyama, MD's National Provider Identifier (NPI) is 1639194038, issued on Jul 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gail Patrice Ishiyama, MD located?
The NPPES record lists a practice address at 300 Medical Plaza, Los Angeles, CA, 90095. Phone: (310) 794-1195. Providers update this record themselves, so call before visiting.
How can I verify Gail Patrice Ishiyama, MD's license?
NPPES lists California license number G80933, 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 Gail Patrice Ishiyama, MD prescribe under Medicare Part D?
In 2024, Gail Patrice Ishiyama, MD had 96 Medicare Part D claims for 36 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.
What is Gail Patrice Ishiyama, MD's MIPS final score?
The 2023 MIPS final score is 86.3 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.