David Fan, MD
NPI 1619596152ActiveIndividual· Allergy & Immunology· Walnut Creek, CA
Allergy & Immunology (MD) in Walnut Creek, California, trained at R Franklin University of Med & Sci/Chicago Medical School (class of 2020). Enrolled in Medicare as practitioner - allergy/immunology. Takeda Pharmaceuticals U.S.A., Inc. was the largest of 2 companies reporting payments in 2024, $249.49 in all, mostly food and beverage.
Overview
| NPI | 1619596152 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 14, 2020 |
| Last updated in NPPES | Jun 24, 2025 |
| Certified by provider | Jun 24, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Allergy & Immunology Primary | 207K00000X | A176237 | 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 - Allergy/Immunology (CA) |
|---|
Education and affiliations
| Medical school | R Franklin University of Med & Sci/Chicago Medical School |
|---|---|
| Graduation year | 2020 |
| Medicare specialty | Allergy/Immunology |
| Secondary specialties | Internal Medicine |
Medical group
- Permanente Medical Group IncOakland, CA · 10,996 clinicians
Industry payments (Open Payments)
- 2024$249.49 · 2 payments from 2 companies
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Takeda Pharmaceuticals U.S.A., Inc. | $124.99 | 1 |
| Astrazeneca Pharmaceuticals LP | $124.50 | 1 |
What the 2024 payments were for
- Food and Beverage$249.49 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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