Physician Profile
Unclaimed ProfileAbout WOO
Listed in the NPI registry as a physician assistant — medical, Stephen Christopher Woo, PA-C practices in San Gabriel, CA. According to Medicare claims data, Stephen cared for 40 Medicare patients across 41 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (626) 289-5461
- Email not available
Practice Locations
438 EAST LAS TUNAS DR.
San Gabriel, CA 91776
Procedures Most Often Billed to Medicare
41 services · 40 patients · 2 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Emergency department visit with moderate level of medical decision making | Office visit | 99284 |
25 |
| Emergency department visit with low level of medical decision making | Office visit | 99283 |
16 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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 physician assistants in San Gabriel 2
Same specialty, same city.
Common questions
What does Dr. Woo specialize in?
Dr. Woo is a physician assistant in San Gabriel, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “Physician Assistant — Medical”.
NPI registry
Where is Dr. Woo located?
Dr. Woo is listed at 438 EAST LAS TUNAS DR., San Gabriel, CA 91776. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Woo's phone number?
The number on file is (626) 289-5461. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Woo's NPI number?
Dr. Woo's National Provider Identifier is 1609912690. 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. Woo been practicing?
Dr. Woo has 19+ years experience. Registered with an NPI since 2007. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What does Dr. Woo do most often?
According to Medicare billing data, Dr. Woo the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Woo confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Woo. If this is you, claiming it is free.
Guide.md
Is this your profile?
Verify your identity to control how patients — and AI assistants — describe you.
Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.