Willy Chua, MD
NPI 1326009275 · Pulmonary Disease Physician · Placentia, CA
Enrolled with Medicare as Practitioner - Pulmonary Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Willy Chua, MD is a Pulmonary Disease Physician provider in Placentia, CA (NPI 1326009275).
Provider details
- NPI number
- 1326009275
- Entity type
- Individual
- Primary specialty
- Pulmonary Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- ME054079 (FL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
906 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 | 642 | $133 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 185 | $174 |
| Test for Exercise-Induced Lung Stress94618 | 37 | $36 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 28 | $185 |
| Evaluation of Use of Breathing Device94664 | 14 | $19 |
Typical Medicare-allowed amounts for these services range $19–$185 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 49 | 18 |
| Budesonide/Glycopyr/Formoterolbrand: Breztri Aerosphere | 46 | 16 |
| Montelukast Sodium | 46 | 16 |
| Tiotropium Bromidebrand: Spiriva Respimat | 45 | — |
| Fluticasone/Vilanterolbrand: Breo Ellipta | 26 | — |
| Fluticasone/Umeclidin/Vilanterbrand: Trelegy Ellipta | 24 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$266 across 12 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
Additional practice locations (3)
- 5451 La Palma Ave Ste 19La Palma, CA 90623-1729Phone: (714) 521-9126
- 13522 Newport Ave Ste 102Tustin, CA 92780-3707Phone: (714) 573-8200
- 78 Sw 13th Ave Ste 200Miami, FL 33135-2483Phone: (305) 545-5353Fax: (305) 545-5220
Registry dates
- Enumerated
- 2006-03-30
- Last updated
- 2025-03-14
- Certified
- 2025-03-14
Frequently asked questions
- What is Willy Chua's NPI number?
- Willy Chua's National Provider Identifier (NPI) is 1326009275, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Willy Chua's specialty?
- Willy Chua is listed in the NPPES registry with a primary specialty of Pulmonary Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Willy Chua located?
- Willy Chua's practice location on file with NPPES is 1325 N Rose Dr Ste 102, Placentia, CA 92870-3800.
- What is Willy Chua's phone number?
- The practice phone number listed in the NPPES registry for Willy Chua is (714) 577-2124.
- Does Willy Chua accept Medicare?
- Willy Chua is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Willy Chua's NPI active?
- Yes — Willy Chua's NPI (1326009275) is active in the NPPES registry as of the last update on 2025-03-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.