Provider Profile
Ghian P. Yap, PA
Unclaimed ProfileAbout Ghian Yap
Ghian P. Yap, PA is a physician assistant based in Saint Louis, MO. According to Medicare claims data, Ghian cared for 560 Medicare patients across 577 services. The services billed most often include emergency department visit with high level of medical decision making, emergency department visit with moderate level of medical decision making, and critical care, first 30-74 minutes.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
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
- (314) 966-5000
- Email not available
Practice Locations
3015 N BALLAS RD DEPT EMERGENCY MED
Saint Louis, MO 63131
Procedures Most Often Billed to Medicare
577 services · 560 patients · 4 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Emergency department visit with high level of medical decision making | Office visit | 99285 |
320 | More than most peers in Physician Assistant |
| Emergency department visit with moderate level of medical decision making | Office visit | 99284 |
174 | More than most peers in Physician Assistant |
| Critical care, first 30-74 minutes | Office visit | 99291 |
58 | More often than most peers in Physician Assistant |
| Emergency department visit with low level of medical decision making | Office visit | 99283 |
25 | More often than most peers in Physician Assistant |
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 at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
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 — 8 related providers in 1 group
Common questions
What is Ghian P. Yap's specialty?
Ghian P. Yap is a physician assistant in Saint Louis, MO. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Ghian P. Yap?
Ghian P. Yap is listed at 3015 N Ballas Rd Dept Emergency Med, Saint Louis, MO 63131. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Ghian P. Yap?
The number on file is (314) 966-5000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Ghian P. Yap's NPI number?
Ghian P. Yap's National Provider Identifier is 1447524210. 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 Ghian P. Yap been practicing?
Ghian P. Yap has 14+ years experience. Registered with an NPI since 2012. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What is Ghian P. Yap known for?
According to Medicare billing data, Ghian P. Yap 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 Ghian P. Yap confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Ghian P. Yap. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.