Rachel Blankson Issaka, M.D.
NPI 1073831699ActiveIndividual· Internal Medicine, Gastroenterology· Seattle, WA
Internal Medicine, Gastroenterology (M.D.) in Seattle, Washington, trained at University of Michigan Medical School (class of 2010). Their prescriptions cost Medicare Part D more than their services did: $51,228 for 57 claims, against $13,300 paid for services in 2024. Exact Sciences Corporation was the largest of 2 companies reporting payments in 2025, $98.69 in all, mostly food and beverage.
Overview
| NPI | 1073831699 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 6, 2010 |
| Last updated in NPPES | Jul 21, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | MD60744965 | WA |
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 | 85 |
|---|---|
| Services billed | 137 across 25 procedure codes |
| Paid by Medicare | $13,300 |
Part D prescriptions in 2024
| Prescriptions (claims) | 57 · 63 30-day fills |
|---|---|
| Patients | 44 |
| Total drug cost | $51,228 |
| Generic share | 61% of claims |
Education and affiliations
| Medical school | University of Michigan Medical School |
|---|---|
| Graduation year | 2010 |
| Medicare specialty | Gastroenterology |
| Telehealth | Offers telehealth |
Medical group
- The Association of University PhysiciansSeattle, WA · 3,535 clinicians
Hospital affiliation
- University of Washington Medical CtrSeattle, WA
Industry payments (Open Payments)
- 2025$98.69 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Exact Sciences Corporation | $49.99 | 1 |
| Janssen Biotech, Inc. | $48.70 | 1 |
What the 2025 payments were for
- Food and Beverage$98.69 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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