Quick answers
- Where does Gerard E. Ardron see patients?
- Medicare's clinician data lists 2 practice locations, including Angels Camp, CA and Sonora, CA. Call before your visit to confirm the address.
- What is Gerard E. Ardron's specialty?
- Medicare lists Ophthalmology as the primary specialty.
- Does Gerard E. Ardron accept Medicare assignment?
- Yes. Medicare's clinician data says Gerard E. Ardron 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 Gerard E. Ardron?
- (209) 736-6555, as listed in official Medicare / NPI Registry data.
- What is Gerard E. Ardron's NPI number?
- 1689709982. 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 Gerard E. Ardron is enrolled with Medicare (CMS data updated 2026-10-02).
- 595 Stanislaus Ave, Suite AAngels Camp, CA 95222 (209) 736‑6555
- 940 Sylva Ln, Suite GSonora, CA 95370 (209) 532‑0340
Group practices
Medicare enrollment lists Gerard E. Ardron as a member of this group (CMS data updated 2026-10-02).
- Arthur N. Donaldson, M.D., Inc.2 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Loma Linda University School Of Medicine |
| Graduation year | 1988 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1689709982 |
| 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