Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum Organization subpart
Arthur N Donaldson M D Inc
Ophthalmology Physician in Angels Camp, CA · enumerated 2007 · authorized official Gerard Ardron, President.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1942337746
See something wrong? Report a correction
Registry record
Taxonomy & classification
Authorized official
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 1299310002 | Other | CA | DMERC NORIDIAN |
| ZZZ27242Z | Other | CA | BLUE SHIELD |
| CP7050 | Other | CA | RAILROAD MEDICARE |
| GR0085461 | Medicaid | CA | - |
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
Where is Arthur N Donaldson M D Inc located?
How current is this record?
Providers at this address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-03-05.