William M. Kelley, M.D.
NPI 1164477105ActiveIndividual· Internal Medicine, Gastroenterology· Portland, OR
Internal Medicine, Gastroenterology (M.D.) in Portland, Oregon, trained at Stanford University School of Medicine (class of 1999). Their prescriptions cost Medicare Part D more than their services did: $372,350 for 886 claims, against $38,823 paid for services in 2024. Boston Scientific Corporation reported $128.93 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1164477105 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 24, 2006 |
| Last updated in NPPES | Sep 8, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | MD26828 | 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 (OR); Practitioner - Gastroenterology (WA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 195 |
|---|---|
| Services billed | 417 across 35 procedure codes |
| Paid by Medicare | $38,823 |
Part D prescriptions in 2024
| Prescriptions (claims) | 886 · 1,154 30-day fills |
|---|---|
| Patients | 388 |
| Total drug cost | $372,350 |
| Generic share | 76% of claims |
Education and affiliations
| Medical school | Stanford University School of Medicine |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | Gastroenterology |
Medical group
- Kaiser Foundation Health Plan of the NorthwestSalem, OR · 1,807 clinicians
Hospital affiliations
- Kaiser Foundation Hospital WestsideHillsboro, OR
- Salem HospitalSalem, OR
Industry payments (Open Payments)
- 2025$128.93 · 1 payment from 1 company
- 2024$146.34 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Boston Scientific Corporation | $128.93 | 1 |
What the 2025 payments were for
- Food and Beverage$128.93 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other gastroenterologists in Portland
- 1013229996
- 1033322128
- 1033379862
- 1043434814
- 1043484405
- 1063845998
- 1073908588
- 1073933099
- 1154554657
- 1174811608
- 1184614455
- 1184880726
All 140 gastroenterologists in Portland · All gastroenterologists in Oregon