David Wu
NPI 1699039438 · Pulmonary Disease Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Pulmonary Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
David Wu is a Pulmonary Disease Physician provider in Chicago, IL (NPI 1699039438).
Provider details
- NPI number
- 1699039438
- Entity type
- Individual
- Primary specialty
- Pulmonary Disease PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- 036136313 (IL)
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
13 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
78 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) |
|---|---|---|
| Critical Care, First 30-74 Minutes99291 | 50 | $230 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 14 | $145 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 14 | $88 |
Typical Medicare-allowed amounts for these services range $88–$230 (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 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tiotropium Bromidebrand: Spiriva Respimat | 135 | 31 |
| Budesonide/Formoterol Fumaratebrand: Breyna | 121 | 37 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 88 | 39 |
| Prednisone | 84 | 39 |
| Ciclesonidebrand: Alvesco | 54 | 21 |
| Benralizumabbrand: Fasenra Pen | 34 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$161 across 7 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
- 2012-06-26
- Last updated
- 2022-12-09
- Certified
- 2022-12-09
Frequently asked questions
- What is David Wu's NPI number?
- David Wu's National Provider Identifier (NPI) is 1699039438, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is David Wu's specialty?
- David Wu is listed in the NPPES registry with a primary specialty of Pulmonary Disease Physician (Allopathic & Osteopathic Physicians).
- Where is David Wu located?
- David Wu's practice location on file with NPPES is 5841 S Maryland Ave, Chicago, IL 60637-1443.
- What is David Wu's phone number?
- The practice phone number listed in the NPPES registry for David Wu is (888) 824-0200.
- Does David Wu accept Medicare?
- David Wu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is David Wu's NPI active?
- Yes — David Wu's NPI (1699039438) is active in the NPPES registry as of the last update on 2022-12-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.