David Liu, PA-C
NPI 1144647660 · Medical Physician Assistant · Fremont, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Liu, PA-C is a Medical Physician Assistant provider in Fremont, CA (NPI 1144647660).
Provider details
- NPI number
- 1144647660
- Entity type
- Individual
- Primary specialty
- Medical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- Yes
- License
- PA51475 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
12 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
2,093 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) |
|---|---|---|
| X-Ray of Knee, 3 Views73562 | 412 | $9 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 334 | $63 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 331 | $93 |
| X-Ray of Hip, 1 View73501 | 157 | $9 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 141 | $92 |
| X-Ray of Knee, 1-2 Views73560 | 110 | $8 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin | 277 | 214 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 200 | 164 |
| Ondansetron Hcl | 195 | 180 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 181 | 111 |
| Cephalexin | 94 | 87 |
| Tramadol Hcl | 62 | 55 |
| Clindamycin Hcl | 55 | 41 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$239 across 6 records (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
- 2014-03-21
- Last updated
- 2023-03-09
- Certified
- 2023-03-09
Frequently asked questions
- What is David Liu's NPI number?
- David Liu's National Provider Identifier (NPI) is 1144647660, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Liu's specialty?
- David Liu is listed in the NPPES registry with a primary specialty of Medical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is David Liu located?
- David Liu's practice location on file with NPPES is 2000 Mowry Ave, Fremont, CA 94538-1716.
- What is David Liu's phone number?
- The practice phone number listed in the NPPES registry for David Liu is (510) 818-7200.
- Does David Liu accept Medicare?
- David Liu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Liu's NPI active?
- Yes — David Liu's NPI (1144647660) is active in the NPPES registry as of the last update on 2023-03-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.