Joey Liu, M.D.
NPI 1538137013 · Family Medicine Physician · Thousand Oaks, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joey Liu, M.D. is a Family Medicine Physician provider in Thousand Oaks, CA (NPI 1538137013).
Provider details
- NPI number
- 1538137013
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A064109 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
676 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 272 | $137 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 187 | $177 |
| Automated Urinalysis Test81003 | 79 | $2 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 62 | $96 |
| Detection Test By Immunoassay With Direct Visual Observation for Severe Acute Respiratory Syndrome Coronavirus 2 (covid-19)87811 | 35 | $41 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Azithromycin | 114 | 107 |
| Ciprofloxacin Hcl | 66 | 62 |
| Fluticasone Propionate | 61 | 54 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 55 | 40 |
| Methylprednisolone | 50 | 50 |
| Nirmatrelvir/Ritonavirbrand: Paxlovid | 39 | 39 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 36 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-03-09
- Last updated
- 2012-03-07
Frequently asked questions
- What is Joey Liu's NPI number?
- Joey Liu's National Provider Identifier (NPI) is 1538137013, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joey Liu's specialty?
- Joey Liu is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Joey Liu located?
- Joey Liu's practice location on file with NPPES is 620 E Janss Rd,, Thousand Oaks, CA 91360.
- What is Joey Liu's phone number?
- The practice phone number listed in the NPPES registry for Joey Liu is (805) 495-6866.
- Does Joey Liu accept Medicare?
- Joey Liu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joey Liu's NPI active?
- Yes — Joey Liu's NPI (1538137013) is active in the NPPES registry as of the last update on 2012-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.