Robert Liou, MD
NPI 1316127624 · Internal Medicine Physician · Long Beach, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Liou, MD is a Internal Medicine Physician provider in Long Beach, CA (NPI 1316127624).
Provider details
- NPI number
- 1316127624
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A106614 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 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
35 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) |
|---|---|---|
| Critical Care, First 30-74 Minutes99291 | 35 | $217 |
Typical Medicare-allowed amounts for these services range $217–$217 (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 · 24 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 138 | 58 |
| Tiotropium Bromidebrand: Spiriva Respimat | 131 | 35 |
| Fluticasone Propion/Salmeterolbrand: Wixela Inhub | 129 | 38 |
| Prednisone | 113 | 64 |
| Ciclesonidebrand: Alvesco | 59 | 21 |
| Montelukast Sodium | 52 | 20 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-11-05
- Last updated
- 2021-11-29
Frequently asked questions
- What is Robert Liou's NPI number?
- Robert Liou's National Provider Identifier (NPI) is 1316127624, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Liou's specialty?
- Robert Liou is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Liou located?
- Robert Liou's practice location on file with NPPES is 2110 N Bellflower Blvd, Long Beach, CA 90815-3126.
- What is Robert Liou's phone number?
- The practice phone number listed in the NPPES registry for Robert Liou is (562) 346-2222.
- Does Robert Liou accept Medicare?
- Robert Liou is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Liou's NPI active?
- Yes — Robert Liou's NPI (1316127624) is active in the NPPES registry as of the last update on 2021-11-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.