Robert Liu
NPI 1386178002 · Internal Medicine Physician · Fontana, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Liu is a Internal Medicine Physician provider in Fontana, CA (NPI 1386178002).
Provider details
- NPI number
- 1386178002
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- A162213 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
9 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 33 | 32 |
| Levetiracetam | 31 | 23 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 27 | 27 |
| Methocarbamol | 25 | 24 |
| Amlodipine Besylate | 20 | 16 |
| Dexamethasone | 16 | 16 |
| Gabapentin | 12 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$155 across 3 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
- 2017-04-19
- Last updated
- 2023-01-17
- Certified
- 2023-01-17
Frequently asked questions
- What is Robert Liu's NPI number?
- Robert Liu's National Provider Identifier (NPI) is 1386178002, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Liu's specialty?
- Robert Liu is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Liu located?
- Robert Liu's practice location on file with NPPES is 17234 Valley Blvd., Fontana, CA 92335.
- What is Robert Liu's phone number?
- The practice phone number listed in the NPPES registry for Robert Liu is (909) 427-5000.
- Does Robert Liu accept Medicare?
- Robert Liu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Liu's NPI active?
- Yes — Robert Liu's NPI (1386178002) is active in the NPPES registry as of the last update on 2023-01-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.