Data from the NPPES registry. May not reflect recent changes — verify at nppes.cms.hhs.gov.
DR. MASON LANG, OD
ActiveDR. MASON LANG, OD is a Optometrist healthcare provider located in UNION CITY, California. NPI 1407337439 is currently active in the NPPES registry. Verify at CMS.
Optometrist · UNION CITY, CA
Registration Details
- NPI Number
- 1407337439
- Provider Type
- Individual
- Gender
- Male
- NPI Issued
- Aug 27, 2018 (7.9548149173491 yrs)
- Last Updated
- Jul 12, 2025
- Licenses
-
008867 (NY)34493 (CA)
Practice Information
- Address
-
30600 DYER STUNION CITY, CA, 945871717Browse CA providers · Browse ZIP 94587
- Phone
- 5104313142
- Primary Specialty
-
Optometrist
152W00000X
- Additional Specialty
- Optometrist
Other Optometrist Providers in UNION CITY, CA
| Name | Credential | NPI |
|---|---|---|
| SAUL CEPEDA | OD | 1073573853 |
| DR. MICHELLE XIAOQI MO | O.D. | 1164505814 |
| NEDDA SHAKIB MISHERGHI | O.D. | 1043375447 |
| DR. DEBORAH ELLEN DEVENO | OD | 1871659433 |
| JOHNNY YUT-FON JANG | O.D. | 1932266798 |
| HANNAH HANKYUNG PARK | O.D. | 1376690156 |
Data sourced from the NPPES National Provider Identifier registry. This information is for informational purposes only and is not a substitute for verifying credentials with the appropriate licensing authority. For official verification, use the NPPES NPI Registry or the relevant state medical board.