Doctor profile · Federal record

Dr. Lillian Nguyen, PA-C

Physician Assistant · Medical Physician Assistant · Surgical Physician Assistant · Orange, CA

  • NPI 1245717024
  • 8 yrs on file
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
280 S Main St Ste 200
Orange, CA 928683852
(146) 344-5677
fax (714) 937-4894

Credentials & registration

NPPES · NUCC
NPI registered
July 2018 — 8 yrs on file
Profile last updated
August 8, 2024
Specialty taxonomy
363A00000X — NUCC code

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1245717024. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,111
Distinct HCPCS
2
Medicare allowed
$78,380
HCPCS Description Services Patients Avg allowed
99308 Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 15 minutes 1,045 186 $67
99305 Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes 66 61 $120

In context: peer comparison

Among 38 peers in Orange Physician Assistant, average services per provider: 150. This provider delivers 7.4× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
366
Patients
270
Total drug cost
$12,448
Drug Type Claims Patients Total cost
Gabapentin Generic 71 49 $912
Methocarbamol Generic 55 48 $726
Naloxone Hcl Generic 55 55 $4,621
Oxycodone Hcl Generic 45 39 $774
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 39 32 $464
Pregabalin Generic 29 20 $1,292
Tramadol Hcl Generic 25 16 $110
Lidocaine Generic 19 0 $3,226
Hydromorphone Hcl Generic 16 11 $101
Methadone Hcl Generic 12 0 $222

Frequently asked questions

Auto-generated from federal data
What is Dr. Lillian Nguyen's medical specialty?
Dr. Lillian Nguyen practices Physician Assistant in Orange, CA.
Where does Dr. Lillian Nguyen practice?
Dr. Lillian Nguyen practices at 280 S Main St Ste 200, Orange, CA 928683852. Office phone: 1463445677.
What is Dr. Lillian Nguyen's NPI?
Dr. Lillian Nguyen's National Provider Identifier (NPI) is 1245717024, issued by NPPES.
What procedures does Dr. Lillian Nguyen commonly perform?
Top Medicare-reported procedures in 2023: Subsequent nursing facility care with straightforward level of medical decision making (HCPCS 99308); Initial nursing facility care with moderate level of medical decision making (HCPCS 99305). Source: CMS Medicare Physician & Other Practitioners file.