# ANDREW S WILLIAMS M D, San Francisco CA: Ophthalmology (NPI 1568575959)

**Practice Launch & Vendor Spend Score:** 35/100

| Field | Value |
|---|---|
| NPI | 1568575959 |
| Practice | ANDREW S WILLIAMS M D |
| Specialty (taxonomy) | Ophthalmology |
| Address | 45 Castro St Ste 318 |
| City | San Francisco |
| State | CA |
| ZIP | 94114 |
| Practice phone | 415-431-9555 |
| Authorized official | Dr. ANDREW WILLIAMS M.D. |
| Official title | Sole Proprietor |
| Enumerated | 2006-08-17 |
| Last updated | 2015-08-13 |
| Status | Active |

## Why this score
- Established practice (enumerated 2006-08-17).
- Optometry practices use specialized equipment and software, so vendor spend tends to be higher.
- Practice phone listed.

Source: CMS NPPES NPI Registry (U.S. Centers for Medicare & Medicaid Services) (https://npiregistry.cms.hhs.gov/provider-view/1568575959). Last refreshed: 2026-11-03T01:38:44.844Z.
Data from the public CMS NPPES NPI Registry, which practices maintain themselves and may be out of date. Informational only; respect do-not-call and anti-spam laws when contacting practices.