Joey Liu, M.D.
Family Medicine Physician · Thousand Oaks, CA
Joey Liu, M.D. is a family medicine physician with a practice address in Thousand Oaks, California, and NPI 1538137013, issued on Mar 9, 2006. Check the license (California A64109, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Joey Liu
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- A64109 CA
A064109 CA
Self-reported in NPPES; status is on the state search - Practice location
- 620 E Janss RD,, Thousand Oaks, CA 91360
- Phone
- (805) 495-6866
- Enumerated
- Mar 9, 2006
- Record last updated
- Mar 7, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (805) 495-8085
- Medicare enrollment
- Enrolled (PECOS I20041116000399); accepts Medicare assignment
- Medical or professional school
- Albert Einstein College Of Medicine Of Yeshiva University, 1996
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Verify Joey Liu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A64109Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
77% fewer Medicare Part D claims than the average family medicine physician in 2024
810 Medicare Part D claims for 467 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.
Most prescribed
- Azithromycin114 claims
- Ciprofloxacin Hcl66 claims
- Fluticasone Propionate61 claims
- Albuterol Sulfate Hfa55 claims
- Methylprednisolone50 claims
- Paxlovid39 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
- Carbon Health Medical Group OF California PCSimi Valley, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Joey Liu among 17,133 family medicine physician records in California
Joey Liu, M.D. is one of 17,133 family 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 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1996 · median 2005 among the 10,652 with a school on file
- Record last updated2012 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
39 family medicine physician records list a practice address in Thousand Oaks
They are 39 of the 2,434 NPPES records with a practice address in Thousand Oaks, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Thousand Oaks → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Elise Bukont, D.O.Thousand Oaks, CA 913601851449888
- Cheryl Cohler, M.D.Thousand Oaks, CA 913601962454041
- Francis Dawson, M.D.Thousand Oaks, CA 913601043390883
- Mark Kasow, M.D.Thousand Oaks, CA 913601619946266
- Barry Lefkovitch, M.D.Thousand Oaks, CA 913601538111752
- Frederick Lindberg, MDThousand Oaks, CA 913601467499582
- Verna Liss, MDThousand Oaks, CA 913601093708174
- Paul Reisser, M.D.Thousand Oaks, CA 913601306926142
Common questions
What is Joey Liu, M.D.'s NPI number?
Joey Liu, M.D.'s National Provider Identifier (NPI) is 1538137013, issued on Mar 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Joey Liu, M.D. located?
The NPPES record lists a practice address at 620 E Janss RD,, Thousand Oaks, CA, 91360. Phone: (805) 495-6866. Providers update this record themselves, so call before visiting.
How can I verify Joey Liu, M.D.'s license?
NPPES lists California license number A64109, 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 Joey Liu, M.D. prescribe under Medicare Part D?
In 2024, Joey Liu, M.D. had 810 Medicare Part D claims for 467 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.