NPI 1013986868 · live from the CMS NPI Registry
John Carter Alden, MD
Ophthalmology in Oakland, CA. National Provider Identifier 1013986868, active.
NPI record
| NPI | 1013986868 Type 1 · individual |
|---|---|
| Status | Active |
| Primary specialty | Ophthalmology 207W00000X |
| Practice location | 350 30th Street, Suite 444, Oakland, CA 94609 |
| Practice phone | 510-452-2020 |
| Enumerated | March 15, 2006 |
| Last updated | July 13, 2026 |
| Sole proprietor | No |
Taxonomies and licenses
| Taxonomy | Code | License |
|---|---|---|
| Ophthalmology primary | 207W00000X | 000G84240 (CA) |
Source: CMS NPPES NPI Registry. NPI data is self-reported by providers; license numbers are not verified by CMS.