Doctor profile · Federal record

Dr. Lien Nguyen, NP

Nurse Practitioner · Mission Viejo, CA

  • NPI 1508906033
  • Accepts Medicare
  • 23 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
27799 Medical Center RD Ste 310
Mission Viejo, CA 926916400
(949) 364-5090

Credentials & registration

NPPES · NUCC
NPI registered
February 2007 — 19 yrs on file
Profile last updated
June 24, 2022
Year of graduation
2003 — 23 yrs since
Specialty taxonomy
363L00000X — NUCC code
State license (1)
California #NP14331

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1508906033. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
298
Distinct HCPCS
4
Medicare allowed
$36,374
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 156 119 $117
99203 New patient office or other outpatient visit, 30-44 minutes 78 78 $104
99204 New patient office or other outpatient visit, 45-59 minutes 46 46 $153
99215 Established patient office or other outpatient visit, 40-54 minutes 18 18 $165

In context: peer comparison

Among 4 peers in Mission Viejo Nurse Practitioner, average services per provider: 58. This provider delivers 5.1× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$2,054
Transactions
56
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
Aimmune Therapeutics, INC. 10 $431.94
Janssen Biotech, INC. 12 $382.29
Abbvie INC. 8 $200.26
Madrigal Pharmaceuticals 2 $186.61
Celltrion USA INC. 3 $170.12
Medtronic, INC. 1 $147.63
Phathom Pharmaceuticals, INC. 1 $124.99
Genzyme Corporation 5 $124.74
Salix Pharmaceuticals, A Division of Bausch Health US, LLC 3 $62.10
Takeda Pharmaceuticals U.S.A., INC. 3 $59.38
Regeneron Healthcare Solutions, INC. 2 $50.29
Ferring Pharmaceuticals INC. 2 $43.37
Albireo Pharma, INC. 2 $35.78
Lilly USA, LLC 1 $21.51
Celgene Corporation 1 $13.39

By nature of payment

Food and Beverage
$2,054

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
605
Patients
348
Total drug cost
$121,973
Drug Type Claims Patients Total cost
Famotidine Generic 137 58 $2,978
Omeprazole Generic 74 40 $1,068
Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,Mag Sulfates) Brand 66 66 $4,923
Clenpiq (Sod Picosulf/Mag Ox/Citric Ac) Brand 49 49 $8,630
Pantoprazole Sodium Generic 48 27 $840
Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) Brand 42 41 $635
Gavilyte-C (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) Brand 41 40 $619
Colestipol Hcl Generic 30 14 $2,700
Sucralfate Generic 24 13 $1,853
Anastrozole Generic 21 0 $833

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Lien Nguyen's medical specialty?
Dr. Lien Nguyen practices Nurse Practitioner in Mission Viejo, CA.
Where does Dr. Lien Nguyen practice?
Dr. Lien Nguyen practices at 27799 Medical Center RD Ste 310, Mission Viejo, CA 926916400. Office phone: 9493645090.
What is Dr. Lien Nguyen's NPI?
Dr. Lien Nguyen's National Provider Identifier (NPI) is 1508906033, issued by NPPES.
Does Dr. Lien Nguyen accept Medicare assignment?
Yes. Dr. Lien Nguyen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Lien Nguyen commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); New patient office or other outpatient visit (HCPCS 99203); New patient office or other outpatient visit (HCPCS 99204). Source: CMS Medicare Physician & Other Practitioners file.