Quick answers
- Which hospitals does Timothy J. Stocker work at?
- Medicare's official clinician data lists Timothy J. Stocker at 1 hospital: Kaiser Foundation Hospital - South Bay. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Timothy J. Stocker see patients?
- Medicare's clinician data lists 3 practice locations, including Harbor City, CA and Signal Hill, CA. Call before your visit to confirm the address.
- What is Timothy J. Stocker's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Timothy J. Stocker accept Medicare assignment?
- Yes. Medicare's clinician data says Timothy J. Stocker 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 Timothy J. Stocker?
- (310) 325-5111, as listed in official Medicare / NPI Registry data.
- What is Timothy J. Stocker's NPI number?
- 1588858781. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Timothy J. Stocker works
Medicare's Facility Affiliation Data lists Timothy J. Stocker at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Kaiser Foundation Hospital - South BayHarbor City, CA · Acute Care Hospital · CCN 050411
Practice locations
Addresses where Timothy J. Stocker is enrolled with Medicare (CMS data updated 2026-10-02).
- 25821 Vermont AveHarbor City, CA 90710 (310) 325‑5111
- 25825 Vermont AveHarbor City, CA 90710 (310) 325‑5111
- 845 E Willow StSignal Hill, CA 90755 (562) 490‑4150
Group practices
Medicare enrollment lists Timothy J. Stocker as a member of this group (CMS data updated 2026-10-02).
- Southern California Permanente Medical Group11,293 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Harbor City
Clinicians with the same Medicare primary specialty in Harbor City, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, Davis School Of Medicine |
| Graduation year | 2006 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1588858781 |
| 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