Bert Liu
NPI 1437511607 · Pulmonary Disease Physician · Pasadena, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Bert Liu is a Pulmonary Disease Physician provider in Pasadena, CA (NPI 1437511607).
Provider details
- NPI number
- 1437511607
- Entity type
- Individual
- Primary specialty
- Pulmonary Disease PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- Yes
- License
- A154347 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
10 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
1,740 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 723 | $122 |
| Critical Care, First 30-74 Minutes99291 | 549 | $217 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 113 | $179 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 72 | $98 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 68 | $120 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 |
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 |
|---|---|---|
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 58 | 32 |
| Fluticasone/Umeclidin/Vilanterbrand: Trelegy Ellipta | 44 | 12 |
| Prednisone | 28 | 17 |
| Fluticasone Propion/Salmeterolbrand: Wixela Inhub | 27 | — |
| Azithromycin | 17 | 11 |
| Fluticasone Propionate | 17 | — |
| Albuterol Sulfate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$188 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
- 2016-03-25
- Last updated
- 2022-10-17
- Certified
- 2022-10-17
Frequently asked questions
- What is Bert Liu's NPI number?
- Bert Liu's National Provider Identifier (NPI) is 1437511607, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Bert Liu's specialty?
- Bert Liu is listed in the NPPES registry with a primary specialty of Pulmonary Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Bert Liu located?
- Bert Liu's practice location on file with NPPES is 10 Congress Street Ste 155, Pasadena, CA 91105-1029.
- What is Bert Liu's phone number?
- The practice phone number listed in the NPPES registry for Bert Liu is (626) 486-0181.
- Does Bert Liu accept Medicare?
- Bert Liu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Bert Liu's NPI active?
- Yes — Bert Liu's NPI (1437511607) is active in the NPPES registry as of the last update on 2022-10-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.