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Arthur N Donaldson M D Inc

Ophthalmology Physician in Sonora, CA · enumerated 2007 · authorized official Gerard Ardron, President.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1497882914

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Registry record

Entity type Organization (Type 2)
Legal business name Arthur N Donaldson M D Inc
Other name <Unavail>
Parent organization Arthur N Donaldson M D Inc
Practice address 940 Sylva Ln, Ste.G, Sonora, CA, 95370
Phone (209) 532-0340
Fax (209) 532-1687
Enumeration date Feb 28, 2007
Last updated in NPPES Mar 12, 2014

Taxonomy & classification

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License CLN30 (CA) Primary

Authorized official

Name Gerard Ardron
Title President
Phone (209) 532-0340

Other identifiers

Identifier Type State Issuer
GR0085460 Medicaid CA -
ZZZ22745Z Other CA BLUE SHIELD
CP7050 Other CA RAILROAD MEDICARE
1299310001 Other CA DMERC NORIDIAN

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.

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Frequently asked questions

Where is Arthur N Donaldson M D Inc located?
The practice location on file with NPPES is in Sonora, CA.
How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2014-03-12. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-03-12.