Mark T. Chan, MD
NPI 1689779530ActiveIndividual· Specialist· Clackamas, OR
Specialist (MD) with Kaiser Foundation Health Plan of the Northwest, practicing in Clackamas, Oregon. Part D covered 539 prescriptions written in 2024, 73% of them generic.
Overview
| NPI | 1689779530 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Sep 14, 2006 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Specialist Primary | 174400000X | — | — |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Allergy/Immunology (OR); Practitioner - Allergy/Immunology (WA) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 539 · 1,037 30-day fills |
|---|---|
| Patients | 212 |
| Total drug cost | $103,742 |
| Generic share | 73% of claims |
Education and affiliations
| Graduation year | 1992 |
|---|---|
| Medicare specialty | Allergy/Immunology |
| Secondary specialties | Family Practice |
Medical group
- Kaiser Foundation Health Plan of the NorthwestSalem, OR · 1,807 clinicians
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