Quick answers
- Which hospitals does Steven Hartzman work at?
- Medicare's official clinician data lists Steven Hartzman at 5 hospitals: Petaluma Valley Hospital, Providence Centralia Hospital, Providence Holy Cross Medical Center, Providence Santa Rosa Memorial Hospital and Providence St Peter Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Steven Hartzman see patients?
- Medicare's clinician data lists 6 practice locations, including Bellevue, WA, Everett, WA and Redmond, WA. Call before your visit to confirm the address.
- What is Steven Hartzman's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty, and also Interventional Radiology.
- Does Steven Hartzman accept Medicare assignment?
- Yes. Medicare's clinician data says Steven Hartzman 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 Steven Hartzman?
- (425) 357-3960, as listed in official Medicare / NPI Registry data.
- What is Steven Hartzman's NPI number?
- 1255330833. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Steven Hartzman works
Medicare's Facility Affiliation Data lists Steven Hartzman at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Petaluma Valley HospitalPetaluma, CA · Acute Care Hospital · CCN 050136
- Providence Centralia HospitalCentralia, WA · Acute Care Hospital · CCN 500019
- Providence Holy Cross Medical CenterMission Hills, CA · Acute Care Hospital · CCN 050278
- Providence Santa Rosa Memorial HospitalSanta Rosa, CA · Acute Care Hospital · CCN 050174
- Providence St Peter HospitalOlympia, WA · Acute Care Hospital · CCN 500024
Practice locations
Addresses where Steven Hartzman is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 1200 112th Ave NE, Suite B250Bellevue, WA 98004
- 13020 Meridian Ave SEverett, WA 98208 (425) 357‑3960
- 18100 NE Union Hill RdRedmond, WA 98052 (425) 498‑2030
- 4585 Via MariaSanta Barbara, CA 93111 (425) 563‑1500
- 515 Minor Ave, Suite 110Seattle, WA 98104 (206) 386‑9699
Group practices
Medicare enrollment lists Steven Hartzman as a member of these groups (CMS data updated 2026-10-02).
- Swedish Health Services1,037 clinicians in the group
- Radia Inc P S277 clinicians in the group
- Swedish Health Services154 clinicians in the group
- Radia California Radiology Medical Group Inc136 clinicians in the group
- Swedish Radia Imaging Center at Edmonds LLC112 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
- Interventional Radiologyalso
Other radiologists in Bellevue
Clinicians with the same Medicare primary specialty in Bellevue, WA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1983 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1255330833 |
| 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