Quick answers
- Does Geraldine R. McCollum accept Medicare assignment?
- Yes. Medicare's clinician data says Geraldine R. McCollum accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- What is Geraldine R. McCollum's NPI number?
- 1154303477. 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 Geraldine R. McCollum is enrolled with Medicare (CMS data updated October 2, 2026).
- 2381 Rosecrans Ave, Suite 115El Segundo, CA 90245
- 39000 PO Box, Suite 33404San Francisco, CA 94139
- 700 Adeline StOakland, CA 94607
- 760 Otay Lakes RdChula Vista, CA 91910
- 823 Gateway Ctr WaySan Diego, CA 92102
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in El Segundo
Clinicians with the same Medicare primary specialty in El Segundo, CA — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 1999 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1154303477 |
| 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 October 2, 2026, retrieved October 29, 2026
- 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