Dana N. Hemmati, MD
NPI 1154584241ActiveIndividual· Internal Medicine, Gastroenterology· Vancouver, WA
Internal Medicine, Gastroenterology (MD) with Peacehealth and 1 other group, practicing in Vancouver, Washington. Their prescriptions cost Medicare Part D more than their services did: $599,591 for 621 claims, against $30,165 paid for services in 2024. Lists Peacehealth Southwest Medical Cente as a hospital affiliation.
Overview
| NPI | 1154584241 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 8, 2008 |
| Last updated in NPPES | Apr 21, 2021 |
| Certified by provider | Apr 21, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | MD61139267 | WA |
| Internal Medicine, Gastroenterology | 207RG0100X | 47539 | AZ |
| Internal Medicine, Gastroenterology | 207RG0100X | MD188736 | OR |
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 - Gastroenterology (WA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 148 |
|---|---|
| Services billed | 280 across 31 procedure codes |
| Paid by Medicare | $30,165 |
Part D prescriptions in 2024
| Prescriptions (claims) | 621 · 990 30-day fills |
|---|---|
| Patients | 246 |
| Total drug cost | $599,591 |
| Generic share | 65% of claims |
Education and affiliations
| Graduation year | 2006 |
|---|---|
| Medicare specialty | Gastroenterology |
Medical groups
- PeacehealthVancouver, WA · 249 clinicians
- PeacehealthVancouver, WA · 103 clinicians
Hospital affiliation
- Peacehealth Southwest Medical CenteVancouver, WA
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other gastroenterologists in Vancouver
- 1093704959
- 1285668822
- 1326074840
- 1467447821
- 1689963035
- 1801916143
- 1841308384
- 1992980213
- 1104888544
- 1295297950
- 1811139256
- 1073802773
All 30 gastroenterologists in Vancouver · All gastroenterologists in Washington