Quick answers
- Which hospitals does Jonathan M. Claassen work at?
- Medicare's official clinician data lists Jonathan M. Claassen at 2 hospitals: Asante Rogue Regional Medical Center and Providence Medford Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Jonathan M. Claassen see patients?
- Medicare's clinician data lists 1 practice location in Medford, OR. Call before your visit to confirm the address.
- What is Jonathan M. Claassen's specialty?
- Medicare lists Anesthesiology as the primary specialty.
- Does Jonathan M. Claassen accept Medicare assignment?
- Yes. Medicare's clinician data says Jonathan M. Claassen 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.
- What is the phone number for Jonathan M. Claassen?
- (541) 773-7273, as listed in official Medicare / NPI Registry data.
- What is Jonathan M. Claassen's NPI number?
- 1780799114. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Jonathan M. Claassen works
Medicare's Facility Affiliation Data lists Jonathan M. Claassen at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Asante Rogue Regional Medical CenterMedford, OR · Acute Care Hospital · CCN 380018
- Providence Medford Medical CenterMedford, OR · Acute Care Hospital · CCN 380075
Practice locations
Addresses where Jonathan M. Claassen is enrolled with Medicare (CMS data updated 2026-10-02).
- 1093 Royal CtMedford, OR 97504 (541) 773‑7273
Group practices
Medicare enrollment lists Jonathan M. Claassen as a member of this group (CMS data updated 2026-10-02).
- Anesthesia Associates of Medford PC48 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Medford
Clinicians with the same Medicare primary specialty in Medford, OR — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of North Carolina At Chapel Hill School Of Medicine |
| Graduation year | 2002 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1780799114 |
| 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