Adam Williams, M.D.
NPI 1265433445ActiveIndividual· Allergy & Immunology· Bend, OR
Allergy & Immunology (M.D.) in Bend, Oregon, trained at Oregon Health Sciences University School of Medicine (class of 1999). Their prescriptions cost Medicare Part D more than their services did: $1,507,051 for 1,229 claims, against $979,286 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 13 companies reporting payments in 2025, $14,275 in all, mostly speaking and faculty fees.
Overview
| NPI | 1265433445 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 10, 2005 |
| Last updated in NPPES | Mar 29, 2021 |
| Certified by provider | Mar 29, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Allergy & Immunology Primary | 207K00000X | MD28200 | OR |
| Allergy & Immunology | 207K00000X | A75129 | CA |
| Internal Medicine | 207R00000X | MD28200 | OR |
| Internal Medicine | 207R00000X | A75129 | CA |
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 - Allergy/Immunology (OR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 265 |
|---|---|
| Services billed | 42,284 across 38 procedure codes |
| Paid by Medicare | $979,286 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,229 · 1,656 30-day fills |
|---|---|
| Patients | 233 |
| Total drug cost | $1,507,051 |
| Generic share | 58% of claims |
Education and affiliations
| Medical school | Oregon Health Sciences University School of Medicine |
|---|---|
| Graduation year | 1999 |
| Medicare specialty | Allergy/Immunology |
| Telehealth | Offers telehealth |
Medical group
- Bend Memorial Clinic PCBend, OR · 221 clinicians
Hospital affiliation
- St Charles Medical Center - BendBend, OR
Industry payments (Open Payments)
- 2025$14,275 · 126 payments from 13 companies
- 2024$34,522 · 135 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $6,447 | 35 |
| Genentech USA, Inc. | $6,133 | 22 |
| Glaxosmithkline, LLC. | $317.92 | 14 |
| Csl Behring | $310.33 | 20 |
| Novartis Pharmaceuticals Corporation | $269.63 | 9 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$10,595 · 8 payments
- Food and Beverage$2,640 · 109 payments
- Travel and Lodging$1,041 · 9 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other allergists in Bend
- 1275776346