Quick answers
- Which hospitals does Matthew Lonergan work at?
- Medicare's official clinician data lists Matthew Lonergan at 3 hospitals: Mercy Medical Center, Peace Harbor Medical Center and Sacred Heart Medical Center - Riverbend. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Matthew Lonergan see patients?
- Medicare's clinician data lists 1 practice location in Eugene, OR. Call before your visit to confirm the address.
- What is Matthew Lonergan's specialty?
- Medicare lists Hematology/Oncology as the primary specialty.
- Does Matthew Lonergan accept Medicare assignment?
- Yes. Medicare's clinician data says Matthew Lonergan accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- Does Matthew Lonergan offer telehealth?
- Medicare's clinician data says Matthew Lonergan offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Matthew Lonergan?
- (541) 683-5001, as listed in official Medicare / NPI Registry data.
- What is Matthew Lonergan's NPI number?
- 1639122591. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Matthew Lonergan works
Medicare's Facility Affiliation Data lists Matthew Lonergan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Mercy Medical CenterRoseburg, OR · Acute Care Hospital · CCN 380027
- Peace Harbor Medical CenterFlorence, OR · Critical Access Hospital · CCN 381316
- Sacred Heart Medical Center - RiverbendSpringfield, OR · Acute Care Hospital · CCN 380102
Practice locations
Addresses where Matthew Lonergan is enrolled with Medicare (CMS data updated 2026-10-02).
- 520 Country Club PkwyEugene, OR 97401 (541) 683‑5001
Group practices
Medicare enrollment lists Matthew Lonergan as a member of this group (CMS data updated 2026-10-02).
- Oncology Associates of Oregon P C48 clinicians in the group
Specialties
- Hematology/Oncologyprimary
Other hematologist-oncologists in Eugene
Clinicians with the same Medicare primary specialty in Eugene, OR — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Harvard Medical School |
| Graduation year | 1994 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1639122591 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians