David Dai
NPI 1023435906ActiveIndividual· Internal Medicine, Pulmonary Disease· Los Angeles, CA
Internal Medicine, Pulmonary Disease in Los Angeles, California, trained at University of California, San Diego School of Medicine (class of 2014). Their prescriptions cost Medicare Part D more than their services did: $254,726 for 1,018 claims, against $12,925 paid for services in 2024. Resmed Corp was the largest of 3 companies reporting payments in 2025, $118.50 in all, mostly food and beverage.
Overview
| NPI | 1023435906 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Mar 27, 2014 |
| Last updated in NPPES | Nov 29, 2021 |
| Certified by provider | Sep 13, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Pulmonary Disease Primary | 207RP1001X | A138674 | CA |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 47 |
|---|---|
| Services billed | 102 across 15 procedure codes |
| Paid by Medicare | $12,925 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,018 · 2,042 30-day fills |
|---|---|
| Patients | 199 |
| Total drug cost | $254,726 |
| Generic share | 52% of claims |
Education and affiliations
| Medical school | University of California, San Diego School of Medicine |
|---|---|
| Graduation year | 2014 |
| Medicare specialty | Internal Medicine |
| Secondary specialties | Pulmonary Disease |
Medical group
- Southern California Permanente Medical GroupRedlands, CA · 11,293 clinicians
Hospital affiliation
- Kaiser Foundation Hospital - West laLos Angeles, CA
Industry payments (Open Payments)
- 2025$118.50 · 3 payments from 3 companies
- 2024$137.69 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Resmed Corp | $82.79 | 1 |
| Inspire Medical Systems, Inc. | $20.11 | 1 |
| Biogen, Inc. | $15.60 | 1 |
What the 2025 payments were for
- Food and Beverage$118.50 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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