Leewen Liu, M.D.
NPI 1114098415 · Specialist · Saratoga, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leewen Liu, M.D. is a Specialist provider in Saratoga, CA (NPI 1114098415).
Provider details
- NPI number
- 1114098415
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- G080609 (CA)
Specialties & taxonomies
Other Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
249 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 163 | $148 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 36 | $105 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 26 | $150 |
| Administration of Influenza Virus VaccineG0008 | 24 | $39 |
Typical Medicare-allowed amounts for these services range $39–$150 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 17 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 283 | 97 |
| Losartan Potassium | 194 | 61 |
| Amlodipine Besylate | 186 | 59 |
| Levothyroxine Sodium | 104 | 26 |
| Metoprolol Succinate | 99 | 32 |
| Metformin Hcl | 85 | 29 |
| Alendronate Sodium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$17 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-10
- Last updated
- 2007-07-09
Frequently asked questions
- What is Leewen Liu's NPI number?
- Leewen Liu's National Provider Identifier (NPI) is 1114098415, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leewen Liu's specialty?
- Leewen Liu is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Leewen Liu located?
- Leewen Liu's practice location on file with NPPES is 19040 Cox Ave, Saratoga, CA 95070-6601.
- What is Leewen Liu's phone number?
- The practice phone number listed in the NPPES registry for Leewen Liu is (408) 973-8861.
- Does Leewen Liu accept Medicare?
- Leewen Liu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Leewen Liu's NPI active?
- Yes — Leewen Liu's NPI (1114098415) is active in the NPPES registry as of the last update on 2007-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.