Quick answers
- Where does Aaron G. Baker see patients?
- Medicare's clinician data lists 1 practice location in San Luis Obispo, CA. Call before your visit to confirm the address.
- What is Aaron G. Baker's specialty?
- Medicare lists Emergency Medicine as the primary specialty, and also Pediatric Medicine.
- Does Aaron G. Baker accept Medicare assignment?
- Yes. Medicare's clinician data says Aaron G. Baker 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 Aaron G. Baker?
- (805) 549-8880, as listed in official Medicare / NPI Registry data.
- What is Aaron G. Baker's NPI number?
- 1215968060. 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 Aaron G. Baker is enrolled with Medicare (CMS data updated 2026-10-02).
- 283 Madonna Rd, Suite BSan Luis Obispo, CA 93405 (805) 549‑8880
Group practices
Medicare enrollment lists Aaron G. Baker as a member of this group (CMS data updated 2026-10-02).
- Kristopher Lyon, MD and Rachel May, MD, a Medical Corporation4 clinicians in the group
Specialties
- Emergency Medicineprimary
- Pediatric Medicinealso
Other emergency medicine doctors in San Luis Obispo
Clinicians with the same Medicare primary specialty in San Luis Obispo, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of California, San Francisco School Of Medicine |
| Graduation year | 1989 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1215968060 |
| 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