Quick answers
- Where does Ronald A. Simon see patients?
- Medicare's clinician data lists 6 practice locations, including Encinitas, CA, San Diego, CA and La Jolla, CA. Call before your visit to confirm the address.
- What is Ronald A. Simon's specialty?
- Medicare lists Allergy/Immunology as the primary specialty, and also Internal Medicine.
- Does Ronald A. Simon accept Medicare assignment?
- Yes. Medicare's clinician data says Ronald A. Simon 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.
- Does Ronald A. Simon offer telehealth?
- Medicare's clinician data says Ronald A. Simon offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Ronald A. Simon?
- (858) 764-3000, as listed in official Medicare / NPI Registry data.
- What is Ronald A. Simon's NPI number?
- 1255304622. 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 Ronald A. Simon is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.
- 326 Santa Fe DrEncinitas, CA 92024
- 3811 Valley Centre DrSan Diego, CA 92130 (858) 764‑3000
- 7565 Mission Valley RdSan Diego, CA 92108 (619) 245‑2350
- 9888 Genesee AveLa Jolla, CA 92037 (858) 626‑4123
- 9896 Genesee AveLa Jolla, CA 92037 (858) 626‑4123
Group practices
Medicare enrollment lists Ronald A. Simon as a member of this group (CMS data updated 2026-10-02).
- Scripps Health1,433 clinicians in the group
Specialties
- Allergy/Immunologyprimary
- Internal Medicinealso
Other allergist and immunologists in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Chicago, Pritzker School Of Medicine |
| Graduation year | 1974 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1255304622 |
| 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