DR MASON LANG OD INC
NPI 1689333502
Optometrist in Union City, CA

Q: What is the provider's specialty?

The provider's specialty is Optometrist with taxonomy code 152W00000X.

Active since December 08, 2021

30600 DYER ST, UNION CITY, CA 94587(510) 431-3142(510) 324-8591 Get Directions Write a Review

NPPES record last updated: July 12, 2025. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Jul 12, 2025, Dec 8, 2021 (2 updates tracked since 2021).

Table of Contents

NPI Profile Information
Primary Taxonomy
Group Taxonomy
Secondary Locations
Authorized Official
Other Providers Same Location
Frequently Asked Questions

Organization
Optometrist

About DR MASON LANG OD INC

This page provides the complete NPI Profile along with additional information for Dr Mason Lang Od Inc, a provider established in Union City, California operating as a Optometrist. The healthcare provider is registered in the NPI registry with number 1689333502 assigned on December 2021. The practitioner's primary taxonomy code is 152W00000X. The provider is registered as an organization and their NPI record was last updated one year ago. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization. The authorized official of this NPI record is Dr. Mason Lang Od (Owner)

NPI: 1689333502 Verify this NPI
Provider Name: DR MASON LANG OD INC
Other Name Type: (6)
Entity Type: Organization
Location Address: 30600 DYER ST UNION CITY, CA 94587
Location Phone: (510) 431-3142
Location Fax: (510) 324-8591
Mailing Address: 500 PAWNEE PL FREMONT, CA 94539
Mailing Phone: (510) 456-5848
Is Sole Proprietor?: No
Is Organization Subpart?: No
Enumeration Date: 12-08-2021
Last Update Date: 07-12-2025
Code Navigator

Location Map

Secondary Locations

7150 Camino Arroyo
Gilroy, CA 95020
(408) 848-1868

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification: Optometrist
Taxonomy Code: 152W00000X
Type: Eye and Vision Services Providers
Taxonomy Description: Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.

Group Taxonomy 193400000X SINGLE SPECIALTY GROUP

This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name: DR. MASON LANG OD
Authorized Official Title: OWNER
Authorized Official Phone: (510) 456-5848