David N. Pham, MD
NPI 1043401698ActiveIndividual· Internal Medicine, Pulmonary Disease· Westminster, CA
Internal Medicine, Pulmonary Disease (MD) in Westminster, California, trained at University of Maryland School of Medicine (class of 1993). Their prescriptions cost Medicare Part D more than their services did: $2,354,830 for 4,556 claims, against $128,955 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 11 companies reporting payments in 2025, $172,880 in all, mostly speaking and faculty fees.
Overview
| NPI | 1043401698 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 8, 2007 |
| Last updated in NPPES | Jan 25, 2023 |
| Certified by provider | Jan 25, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Pulmonary Disease Primary | 207RP1001X | G86094 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Pulmonary Disease (CA); Practitioner - Pulmonary Disease (CO); Practitioner - Pulmonary Disease (NJ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 184 |
|---|---|
| Services billed | 1,834 across 20 procedure codes |
| Paid by Medicare | $128,955 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,556 · 8,944 30-day fills |
|---|---|
| Patients | 209 |
| Total drug cost | $2,354,830 |
| Generic share | 66% of claims |
Education and affiliations
| Medical school | University of Maryland School of Medicine |
|---|---|
| Graduation year | 1993 |
| Medicare specialty | Pulmonary Disease |
Medical group
- David N. Pham, MD, IncWestminster, CA · 3 clinicians
Industry payments (Open Payments)
- 2025$172,880 · 262 payments from 11 companies
- 2024$111,892 · 187 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $151,938 | 184 |
| Glaxosmithkline, LLC. | $20,048 | 51 |
| Genzyme Corporation | $443.60 | 13 |
| Verona Pharma, Inc. | $101.61 | 1 |
| Insmed, Inc. | $83.30 | 4 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$150,750 · 56 payments
- Travel and Lodging$15,904 · 53 payments
- Food and Beverage$6,208 · 151 payments
- Gift$17.21 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Pulmonary Disease providers in Westminster
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