Mason Lang, OD

NPI 1407337439 · on the registry since 2018

Practice

Address: 30600 Dyer St
Union City, CA 94587
Phone: (510) 431-3142
Organisation at this address: Walmart Inc.
Dr Mason Lang Od Inc
Wal-Mart Stores, Inc.
Firstsight Vision Services, Inc.
Dr. Connie Choi Family Optometry
Inferred from a shared address, not stated in the registry.
Clinicians at this address: 8

Registry record

Primary taxonomy: Optometrist
152W00000X
Also registered as: Optometrist
Licence states on file: NY, CA
From the registry's licence fields, which are often incomplete.
Sex: Male
Record last updated: 2025-07-12

Source: CMS National Plan and Provider Enumeration System. Registration is not the same as practising, and the registry records no retirement — some people listed here no longer practise. More in California