Ryan Chua, M.D.
NPI 1659534501 · Pulmonary Disease Physician · Leominster, MA
Enrolled with Medicare as Practitioner - Pulmonary Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ryan Chua, M.D. is a Pulmonary Disease Physician provider in Leominster, MA (NPI 1659534501).
Provider details
- NPI number
- 1659534501
- Entity type
- Individual
- Primary specialty
- Pulmonary Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 237513 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
17 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
2,537 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 | 727 | $132 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 665 | $118 |
| Critical Care, First 30-74 Minutes99291 | 373 | $214 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 218 | $183 |
| Critical Care, Each Additional 30 Minutes99292 | 142 | $108 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 27 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 323 | 105 |
| Fluticasone/Umeclidin/Vilanterbrand: Trelegy Ellipta | 188 | 51 |
| Montelukast Sodium | 150 | 43 |
| Prednisone | 108 | 65 |
| Fluticasone/Vilanterolbrand: Breo Ellipta | 94 | 24 |
| Budesonide/Glycopyr/Formoterolbrand: Breztri Aerosphere | 92 | 27 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,922 across 87 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
- 2008-07-09
- Last updated
- 2016-10-21
Frequently asked questions
- What is Ryan Chua's NPI number?
- Ryan Chua's National Provider Identifier (NPI) is 1659534501, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ryan Chua's specialty?
- Ryan Chua is listed in the NPPES registry with a primary specialty of Pulmonary Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Ryan Chua located?
- Ryan Chua's practice location on file with NPPES is 100 Hospital Rd, Leominster, MA 01453-2253.
- What is Ryan Chua's phone number?
- The practice phone number listed in the NPPES registry for Ryan Chua is (978) 466-2692.
- Does Ryan Chua accept Medicare?
- Ryan Chua is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ryan Chua's NPI active?
- Yes — Ryan Chua's NPI (1659534501) is active in the NPPES registry as of the last update on 2016-10-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.