Quick answers
- Which hospitals does Steffan K. Soosman work at?
- Medicare's official clinician data lists Steffan K. Soosman at 5 hospitals: Alta Bates Summit Medical Center, Eden Medical Center, John Muir Medical Center - Walnut Creek Campus, Straub Clinic and Hospital and Sutter Delta Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Steffan K. Soosman see patients?
- Medicare's clinician data lists 6 practice locations, including Walnut Creek, CA and Honolulu, HI. Call before your visit to confirm the address.
- What is Steffan K. Soosman's specialty?
- Medicare lists Interventional Radiology as the primary specialty, and also Diagnostic Radiology.
- Does Steffan K. Soosman accept Medicare assignment?
- Medicare's clinician data says Steffan K. Soosman may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is the phone number for Steffan K. Soosman?
- (925) 295-1545, as listed in official Medicare / NPI Registry data.
- What is Steffan K. Soosman's NPI number?
- 1396190245. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Steffan K. Soosman works
Medicare's Facility Affiliation Data lists Steffan K. Soosman at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Alta Bates Summit Medical CenterOakland, CA · Acute Care Hospital · CCN 050043
- Eden Medical CenterCastro Valley, CA · Acute Care Hospital · CCN 050488
- John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA · Acute Care Hospital · CCN 050180
- Straub Clinic and HospitalHonolulu, HI · Acute Care Hospital · CCN 120022
- Sutter Delta Medical CenterAntioch, CA · Acute Care Hospital · CCN 050523
Practice locations
Addresses where Steffan K. Soosman is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 1601 Ygnacio Valley RdWalnut Creek, CA 94598 (925) 295‑1545
- 1601 Ygnacio Vly RdWalnut Creek, CA 94596 (925) 939‑3000
- 1906 Keonaona StHonolulu, HI 96817 (925) 296‑7150
- 826 S King St, Fl 2Honolulu, HI 96813 (808) 522‑4602
- 888 S King StHonolulu, HI 96813 (808) 522‑4000
Group practices
Medicare enrollment lists Steffan K. Soosman as a member of these groups (CMS data updated 2026-10-02).
- Straub Clinic and Hospital419 clinicians in the group
- Bay Imaging Consultants Medical Group Inc146 clinicians in the group
- John Muir Trauma Physicians Billing Service113 clinicians in the group
- John Muir Magnetic Imaging Center57 clinicians in the group
Specialties
- Interventional Radiologyprimary
- Diagnostic Radiologyalso
Other interventional radiologists in Walnut Creek
Clinicians with the same Medicare primary specialty in Walnut Creek, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2016 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1396190245 |
| 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