Quick answers
- Which hospitals does Richard A. Mayer work at?
- Medicare's official clinician data lists Richard A. Mayer at 2 hospitals: Scripps Mercy Hospital and UC San Diego Health Hillcrest - Hillcrest Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Richard A. Mayer see patients?
- Medicare's clinician data lists 2 practice locations, including San Diego, CA. Call before your visit to confirm the address.
- What is Richard A. Mayer's specialty?
- Medicare lists Infectious Disease as the primary specialty.
- Does Richard A. Mayer accept Medicare assignment?
- Yes. Medicare's clinician data says Richard A. Mayer 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 Richard A. Mayer?
- (619) 260-8300, as listed in official Medicare / NPI Registry data.
- What is Richard A. Mayer's NPI number?
- 1689773640. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Richard A. Mayer works
Medicare's Facility Affiliation Data lists Richard A. Mayer at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Scripps Mercy HospitalSan Diego, CA · Acute Care Hospital · CCN 050077
- UC San Diego Health Hillcrest - Hillcrest Medical CenterSan Diego, CA · Acute Care Hospital · CCN 050025
Practice locations
Addresses where Richard A. Mayer is enrolled with Medicare (CMS data updated 2026-10-02).
- 4231 Balboa Ave, Suite 218San Diego, CA 92117
- 555 Washington StSan Diego, CA 92103 (619) 260‑8300
Specialties
- Infectious Diseaseprimary
Other infectious disease doctors in San Diego
Clinicians with the same Medicare primary specialty in San Diego, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Johns Hopkins University School Of Medicine |
| Graduation year | 1996 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1689773640 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- 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