Bryan Y. Liou, M.D.
Neurology Physician · Ontario, CA
Bryan Y. Liou, M.D. is a neurology physician with a practice address in Ontario, California, and NPI 1316200660, issued on Jun 21, 2012. Check the license (California A113344, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Bryan Y. Liou
- Credential
- M.D.
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- A113344 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2295 S Vineyard Ave, Ontario, CA 91761
- Phone
- (888) 750-0036
- Enumerated
- Jun 21, 2012
- Record last updated
- Dec 8, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 00A1133440 CA
- Medicare enrollment
- Enrolled (PECOS I20130816000460); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 2,339 in California → Look up another NPI →
Also registered at 2295 S Vineyard Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ana Mae Abaya, NPFamily Nurse Practitioner1255164943
- Sheila Marie Adan, D.O.Family Medicine Physician1912272733
- Anna Alley, CRNACertified Registered Nurse Anesthetist1518399732
- Hye Hyun An, PHARMDPharmacist1578428470
- Leonila Araneta, LCSWClinical Social Worker1861771974
- Fernando AvilaFamily Medicine Physician1396364147
Verify Bryan Y. Liou in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A113344Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
12% fewer Medicare Part D claims than the average neurology physician in 2024
1,206 Medicare Part D claims for 259 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.
Most prescribed
- Carbidopa-Levodopa404 claims
- Amantadine119 claims
- Ropinirole Hcl70 claims
- Gabapentin65 claims
- Primidone55 claims
- Carbidopa-Levodopa Er46 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.
Bills Medicare through one group practice
- Southern California Permanente Medical GroupOntario, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Bryan Y. Liou among 2,339 neurology physician records in California
Bryan Y. Liou, M.D. is one of 2,339 neurology 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 2012, is newer than 66% of them.
- NPI issued2012 · 66% of these records are older, 31% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2007 · median 2006 among the 1,628 with a school on file
- Record last updated2021 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology Physician providers in California
There are 2,339 neurology physician records in California.
All 2,339 in California → Every provider in Ontario → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Michael Oh, M.D.Ontario, CA 917611972763555
- Diana Abdulrahman, M.D.Pomona, CA 917671518276880
- Martin Constante, M.D.Pomona, CA 917671902184419
- Nazli Janjua, MDPomona, CA 917671790719292
- Yasir Shareef, D.O.Pomona, CA 917671336178235
- James Lin, M.D.Monterey Park, CA 917541184742025
- Frank Lin, M.D.Monterey Park, CA 917541821016452
- Mohsen Ali, MDSan Dimas, CA 917731750359071
Common questions
What is Bryan Y. Liou, M.D.'s NPI number?
Bryan Y. Liou, M.D.'s National Provider Identifier (NPI) is 1316200660, issued on Jun 21, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Bryan Y. Liou, M.D. located?
The NPPES record lists a practice address at 2295 S Vineyard Ave, Ontario, CA, 91761. Phone: (888) 750-0036. Providers update this record themselves, so call before visiting.
How can I verify Bryan Y. Liou, M.D.'s license?
NPPES lists California license number A113344, 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 Bryan Y. Liou, M.D. prescribe under Medicare Part D?
In 2024, Bryan Y. Liou, M.D. had 1,206 Medicare Part D claims for 259 beneficiaries; the average among neurology physician prescribers was 1,370. 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.