Physician Profile
Unclaimed ProfileAbout Dr. Shyy
William Shyy, M.D. is a healthcare provider in Santa Monica, CA specializing in emergency medicine. According to Medicare claims data, William cared for 549 Medicare patients across 560 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
- (310) 794-7700
- Email not available
Practice Locations
1250 16TH ST
Santa Monica, CA 90404
Procedures Most Often Billed to Medicare
560 services · 549 patients · 5 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Ultrasound of heart, follow-up | Treatment | 93308 |
12 |
| Emergency department visit with high level of medical decision making | Office visit | 99285 |
284 |
| Emergency department visit with moderate level of medical decision making | Office visit | 99284 |
178 |
| Critical care, first 30-74 minutes | Office visit | 99291 |
43 |
| Emergency department visit with low level of medical decision making | Office visit | 99283 |
43 |
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 emergency physicians at this location 3
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 13 related providers in 2 groups
Other emergency physicians in Santa Monica 5
Same specialty, same city.
Also performs Ultrasound of heart, follow-up 8
Providers in CA who bill this service to Medicare most often.
Common questions
What does Dr. Shyy specialize in?
Dr. Shyy is an emergency physician in Santa Monica, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “Emergency Medicine”.
NPI registry
Where is Dr. Shyy located?
Dr. Shyy is listed at 1250 16TH ST, Santa Monica, CA 90404. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Shyy's phone number?
The number on file is (310) 794-7700. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Shyy's NPI number?
Dr. Shyy's National Provider Identifier is 1013202274. 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. Shyy been practicing?
Dr. Shyy has 15+ years experience. Registered with an NPI since 2011. 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. Shyy do most often?
According to Medicare billing data, Dr. Shyy provides treatments such as ultrasound of heart, follow-up, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Shyy confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Shyy. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.