Provider Profile
Lillian T. Nguyen, PA-C is a physician assistant based in Orange, CA. Lillian is also listed as specializing in physician assistant — medical and physician assistant — surgical. According to Medicare claims data, Lillian cared for 407 Medicare patients across 1,821 services. The services billed most often include subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more and initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 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.
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.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
280 S MAIN ST STE 200
Orange, CA 92868
1,821 services · 407 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more | Office visit | 99308 |
1,672 | More than most peers in Physician Assistant |
| Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes | Office visit | 99305 |
149 | 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.
Lillian T. Nguyen is a physician assistant in Orange, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Lillian T. Nguyen is listed at 280 S Main St Ste 200, Orange, CA 92868. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (146) 344-5677. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Lillian T. Nguyen's National Provider Identifier is 1245717024. 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
Lillian T. Nguyen attended Other, graduating in 2017. This comes from the CMS National Downloadable File.
CMS public data
Lillian T. Nguyen has 9 years experience. Calculated from a graduation year of 2017, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Lillian T. Nguyen 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
Not yet. This profile is built from public federal data and has not been confirmed by Lillian T. Nguyen. 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.