Quick answers
- Does Rafael A. Chiquillo Sosa accept Medicare assignment?
- Yes. Medicare's clinician data says Rafael A. Chiquillo Sosa 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 Rafael A. Chiquillo Sosa's NPI number?
- 1245543065. 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 Rafael A. Chiquillo Sosa is enrolled with Medicare (CMS data updated October 2, 2026).
- 380 W Macarthur BlvdOakland, CA 94609 (510) 251‑0121
Group practices
Medicare enrollment lists Rafael A. Chiquillo Sosa as a member of this group (CMS data updated October 2, 2026).
- Permanente Medical Group Inc10,996 clinicians in the group
Specialties
- General Practiceprimary
- Addiction Medicinealso
- Family Practicealso
- Psychiatryalso
Other general practitioners in Oakland
Clinicians with the same Medicare primary specialty in Oakland, CA — not a recommendation.
Other clinicians in Permanente Medical Group Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2005 (21 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1245543065 |
| 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