Dennis Chan Tan, M.D.
NPI 1457577983ActiveIndividual· Obstetrics & Gynecology· Milwaukie, OR
Obstetrics & Gynecology (M.D.) with Providence Health and Services Oregon, practicing in Milwaukie, Oregon. Part D covered 73 prescriptions written in 2024, 97% of them generic. Lists Providence Milwaukie Hospital as a hospital affiliation.
Overview
| NPI | 1457577983 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 17, 2007 |
| Last updated in NPPES | Mar 25, 2021 |
| Certified by provider | Mar 25, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | MD27355 | OR |
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 - Obstetrics/Gynecology (OR) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 73 · 162 30-day fills |
|---|---|
| Patients | 34 |
| Total drug cost | $11,614 |
| Generic share | 97% of claims |
Education and affiliations
| Graduation year | 2003 |
|---|---|
| Medicare specialty | Obstetrics/Gynecology |
Medical group
- Providence Health and Services OregonPortland, OR · 1,433 clinicians
Hospital affiliation
- Providence Milwaukie HospitalMilwaukie, OR
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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