Quick answers
- Which hospitals does John W. Loewen work at?
- Medicare's official clinician data lists John W. Loewen at 1 hospital: Sutter Santa Rosa Regional Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does John W. Loewen see patients?
- Medicare's clinician data lists 2 practice locations, including Santa Rosa, CA and Lakeport, CA. Call before your visit to confirm the address.
- What is John W. Loewen's specialty?
- Medicare lists Emergency Medicine as the primary specialty.
- Does John W. Loewen accept Medicare assignment?
- Yes. Medicare's clinician data says John W. Loewen 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 John W. Loewen?
- (707) 262-5000, as listed in official Medicare / NPI Registry data.
- What is John W. Loewen's NPI number?
- 1760435960. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where John W. Loewen works
Medicare's Facility Affiliation Data lists John W. Loewen at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Sutter Santa Rosa Regional HospitalSanta Rosa, CA · Acute Care Hospital · CCN 050291
Practice locations
Addresses where John W. Loewen is enrolled with Medicare (CMS data updated 2026-10-02).
- 3883 Airway DrSanta Rosa, CA 95403
- 5176 Hill Rd ELakeport, CA 95453 (707) 262‑5000
Group practices
Medicare enrollment lists John W. Loewen as a member of these groups (CMS data updated 2026-10-02).
- Sutter Bay Medical Foundation3,829 clinicians in the group
- San Francisco Emergency Medical Associates75 clinicians in the group
Specialties
- Emergency Medicineprimary
Other emergency medicine doctors in Santa Rosa
Clinicians with the same Medicare primary specialty in Santa Rosa, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Loma Linda University School Of Medicine |
| Graduation year | 2003 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1760435960 |
| 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