Quick answers
- Which hospitals does Alfred K. Sein work at?
- Medicare's official clinician data lists Alfred K. Sein at 2 hospitals: Providence St. Jude Medical Center and UCI Health-Orange. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Alfred K. Sein see patients?
- Medicare's clinician data lists 1 practice location in Fullerton, CA. Call before your visit to confirm the address.
- What is Alfred K. Sein's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty.
- Does Alfred K. Sein accept Medicare assignment?
- Yes. Medicare's clinician data says Alfred K. Sein 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 Alfred K. Sein's NPI number?
- 1881830735. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Alfred K. Sein works
Medicare's Facility Affiliation Data lists Alfred K. Sein at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Providence St. Jude Medical CenterFullerton, CA · Acute Care Hospital · CCN 050168
- UCI Health-OrangeOrange, CA · Acute Care Hospital · CCN 050348
Practice locations
Addresses where Alfred K. Sein is enrolled with Medicare (CMS data updated 2026-10-02).
- 101 E Valencia Mesa DrFullerton, CA 92835
Group practices
Medicare enrollment lists Alfred K. Sein as a member of this group (CMS data updated 2026-10-02).
- St Jude Radiology Medical Group Inc61 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Fullerton
Clinicians with the same Medicare primary specialty in Fullerton, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Boston University School Of Medicine |
| Graduation year | 2003 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1881830735 |
| 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