Quick answers
- Where does Stuart Fischer see patients?
- Medicare's clinician data lists 1 practice location in Los Alamitos, CA. Call before your visit to confirm the address.
- What is Stuart Fischer's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty.
- Does Stuart Fischer accept Medicare assignment?
- Yes. Medicare's clinician data says Stuart Fischer 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 Stuart Fischer?
- (562) 430-7533, as listed in official Medicare / NPI Registry data.
- What is Stuart Fischer's NPI number?
- 1083656086. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Stuart Fischer is enrolled with Medicare (CMS data updated 2026-10-02).
- 5300 Katella AveLos Alamitos, CA 90720 (562) 430‑7533
Group practices
Medicare enrollment lists Stuart Fischer as a member of this group (CMS data updated 2026-10-02).
- Los Alamitos Internal Medical Group Inc7 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in California →
Other cardiologists in Los Alamitos
Clinicians with the same Medicare primary specialty in Los Alamitos, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Js Weill Medical College, Cornell University |
| Graduation year | 1979 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1083656086 |
| 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
- 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