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Edit this profileAt a glance
- 417 S San Gabriel Blvd, Suite B, San Gabriel, CA 91776
About Dr. Chang
William Chang, OD is an optometrist practicing in San Gabriel, CA. This provider record is associated with NPI 1629206834.
Factual summary compiled by Guide.md from public records; not written by this provider.
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (626) 291-2020
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
417 S SAN GABRIEL BLVD SUITE B
San Gabriel, CA 91776
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other optometrists at this location 1
Same specialty, same street address — most likely the same department or group.
Also at this address 2
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Common questions
What kind of doctor is Dr. Chang?
Dr. Chang is an optometrist in San Gabriel, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Dr. Chang's address?
Dr. Chang is listed at 417 S San Gabriel Blvd Suite B, San Gabriel, CA 91776. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Chang?
The number on file is (626) 291-2020. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Chang's NPI number?
Dr. Chang's National Provider Identifier is 1629206834. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
How long has Dr. Chang been practicing?
Dr. Chang has 17+ years experience. Registered with an NPI since 2009. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
Has Dr. Chang confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Chang. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.