Quick answers
- Which hospitals does Steven Sinfield work at?
- Medicare's official clinician data lists Steven Sinfield at 3 hospitals: Memorialcare Long Beach Medical Center, Memorialcare Saddleback Medical Center and San Gorgonio Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Steven Sinfield see patients?
- Medicare's clinician data lists 6 practice locations, including Redlands, CA, Long Beach, CA and Anaheim, CA. Call before your visit to confirm the address.
- What is Steven Sinfield's specialty?
- Medicare lists Hospitalist as the primary specialty, and also Internal Medicine.
- Does Steven Sinfield accept Medicare assignment?
- Yes. Medicare's clinician data says Steven Sinfield 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 Sinfield?
- (909) 793-3311, as listed in official Medicare / NPI Registry data.
- What is Steven Sinfield's NPI number?
- 1013545979. 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 Sinfield works
Medicare's Facility Affiliation Data lists Steven Sinfield at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Memorialcare Long Beach Medical CenterLong Beach, CA · Acute Care Hospital · CCN 050485
- Memorialcare Saddleback Medical CenterLaguna Hills, CA · Acute Care Hospital · CCN 050603
- San Gorgonio Memorial HospitalBanning, CA · Acute Care Hospital · CCN 050054
Practice locations
Addresses where Steven Sinfield is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 2 W Fern AveRedlands, CA 92373 (909) 793‑3311
- 2801 Atlantic AveLong Beach, CA 90806 (562) 933‑1554
- 3430 E La Palma AveAnaheim, CA 92806 (888) 988‑2800
- 3460 E La Palma AveAnaheim, CA 92806 (714) 644‑2010
- 5475 E La Palma AveAnaheim, CA 92807 (714) 279‑6088
Group practices
Medicare enrollment lists Steven Sinfield as a member of these groups (CMS data updated 2026-10-02).
- Southern California Permanente Medical Group11,293 clinicians in the group
- Memorialcare Medical Foundation566 clinicians in the group
- Beaver Medical Group P C247 clinicians in the group
Specialties
- Hospitalistprimary
- Internal Medicinealso
Other hospitalists in Redlands
Clinicians with the same Medicare primary specialty in Redlands, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2020 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1013545979 |
| 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