Doctor profile · Federal record

Dr. Thuong Nguyen, M.D.

Allergy & Immunology Physician (CMS: Allergy/Immunology) · Visalia, CA

  • NPI 1831196294
  • Accepts Medicare
  • MIPS 92.1 / 100 · 2023
  • 34 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
5400 W Hillsdale Ave
Visalia, CA 932918222
(559) 738-7593
fax (559) 625-2610

Credentials & registration

NPPES · NUCC
NPI registered
June 2005 — 21 yrs on file
Profile last updated
October 3, 2016
Year of graduation
1992 — 34 yrs since
Specialty taxonomy
207K00000X — NUCC code
State license (1)
California #G77992

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1831196294. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,357
Distinct HCPCS
10
Medicare allowed
$60,145
HCPCS Description Services Patients Avg allowed
95004 Test for allergy using allergenic extract 1,122 22 $4
95117 Professional service for multiple injections of allergen 355 20 $12
95165 Professional service for preparation and provision of 1 or more antigens 343 21 $16
99213 Established patient office or other outpatient visit, 20-29 minutes 230 131 $89
99214 Established patient office or other outpatient visit, 30-39 minutes 115 73 $127
95115 Professional service for single injection of allergen 85 11 $10
99204 New patient office or other outpatient visit, 45-59 minutes 32 32 $167
99203 New patient office or other outpatient visit, 30-44 minutes 29 29 $112
99212 Established patient office or other outpatient visit, 10-19 minutes 16 14 $57
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg 16 14 $1

In context: peer comparison

Among 1 peers in Visalia Allergy & Immunology Physician, average services per provider: 214. This provider delivers 11× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$1,985
Transactions
92
Manufacturers
15
Payer (manufacturer) Industry Txns Amount
Regeneron Healthcare Solutions, INC. 18 $506.08
AstraZeneca Pharmaceuticals Lp 15 $318.49
Optinose US, INC. 9 $205.91
BioCryst US Sales Co., LLC 7 $194.78
GlaxoSmithKline, LLC. 19 $176.86
Csl Behring 5 $121.70
Takeda Pharmaceuticals U.S.A., INC. 6 $117.73
Amgen INC. 3 $69.39
Genentech USA, INC. 2 $64.88
Novartis Pharmaceuticals Corporation 2 $52.68
Leo Pharma INC. 2 $43.33
Boehringer Ingelheim Pharmaceuticals, INC. 1 $27.22
Incyte Corporation 1 $24.16
Octapharma USA, INC. 1 $23.30
Lilly USA, LLC 1 $20.98

By nature of payment

Food and Beverage
$1,890
Education
$95

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,067
Patients
306
Total drug cost
$148,394
Drug Type Claims Patients Total cost
Montelukast Sodium Generic 205 64 $2,183
Azelastine Hcl Generic 194 72 $7,182
Fluticasone Propionate Generic 116 42 $1,806
Ipratropium Bromide Generic 111 43 $4,880
Levocetirizine Dihydrochloride Generic 60 11 $896
Prednisone Generic 54 34 $228
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 51 29 $2,209
Trelegy Ellipta (Fluticasone/Umeclidin/Vilanter) Brand 49 11 $42,081
Breo Ellipta (Fluticasone/Vilanterol) Brand 43 0 $20,069
Gabapentin Generic 41 0 $370

Frequently asked questions

Auto-generated from federal data
What is Dr. Thuong Nguyen's medical specialty?
Dr. Thuong Nguyen practices Allergy & Immunology Physician in Visalia, CA.
Where does Dr. Thuong Nguyen practice?
Dr. Thuong Nguyen practices at 5400 W Hillsdale Ave, Visalia, CA 932918222. Office phone: 5597387593.
What is Dr. Thuong Nguyen's NPI?
Dr. Thuong Nguyen's National Provider Identifier (NPI) is 1831196294, issued by NPPES.
Does Dr. Thuong Nguyen accept Medicare assignment?
Yes. Dr. Thuong Nguyen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Thuong Nguyen commonly perform?
Top Medicare-reported procedures in 2023: Test for allergy using allergenic extract (HCPCS 95004); Professional service for multiple injections of allergen (HCPCS 95117); Professional service for preparation and provision of 1 or more antigens (HCPCS 95165). Source: CMS Medicare Physician & Other Practitioners file.