Doctor profile · Federal record

Dr. Thuan Nguyen

Internal Medicine Physician (CMS: Internal Medicine) · Internal Medicine Physician · Los Angeles, CA

  • NPI 1982086898
  • Accepts Medicare
  • 11 yrs in practice
  • Licensed in 2 states
  • Male
  • Solo practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
1225 Wilshire Blvd
Los Angeles, CA 900171901
(213) 977-2121
fax (213) 482-2770
Additional location
401 W Poplar St
Walla Walla, WA 993622846
(509) 897-2980
fax (509) 897-5184
Mailing address
91-923 Pailani St
Ewa Beach, HI 967062225

Credentials & registration

NPPES · NUCC
NPI registered
June 2015 — 11 yrs on file
Profile last updated
September 25, 2022
Year of graduation
2015 — 11 yrs since
Specialty taxonomy
207R00000X — NUCC code
State licenses (2)
California #20A17572 · Hawaii #DOR-339

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1982086898. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
456
Distinct HCPCS
4
Medicare allowed
$58,523
HCPCS Description Services Patients Avg allowed
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 242 125 $125
99239 Hospital discharge day management, more than 30 minutes 110 107 $121
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 63 63 $182
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 41 31 $83

In context: peer comparison

Among 262 peers in Los Angeles Internal Medicine Physician, average services per provider: 160. This provider delivers 2.9× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$163
Transactions
6
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Zoll Services LLC (A/K/A Zoll LifeCor Corp) 5 $134.25
Revance Therapeutics, INC. 1 $28.40

By nature of payment

Food and Beverage
$163

Frequently asked questions

Auto-generated from federal data
What is Dr. Thuan Nguyen's medical specialty?
Dr. Thuan Nguyen practices Internal Medicine Physician in Los Angeles, CA.
Where does Dr. Thuan Nguyen practice?
Dr. Thuan Nguyen practices at 1225 Wilshire Blvd, Los Angeles, CA 900171901. Office phone: 2139772121.
What is Dr. Thuan Nguyen's NPI?
Dr. Thuan Nguyen's National Provider Identifier (NPI) is 1982086898, issued by NPPES.
Does Dr. Thuan Nguyen accept Medicare assignment?
Yes. Dr. Thuan Nguyen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Thuan Nguyen commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Hospital discharge day management (HCPCS 99239); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.