Doctor profile · Federal record
Dr. Thien Nguyen, M.D.
Critical Care Medicine (Internal Medicine) Physician (CMS: Internal Medicine) · Internal Medicine Physician · Pulmonary Disease Physician · Katy, TX
- NPI 1477872505
- Accepts Medicare
- 16 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
Operates at 3 locations .
- Primary practice
-
Po Box 475
Katy, TX 774920475
(281) 703-3020
fax (281) 578-4862 - Additional location
-
1401 St Joseph Pkwy
Houston, TX 770028301
(850) 607-3641 - Additional location
-
600 Elizabeth St
Corpus Christi, TX 784042235
(361) 881-3000
fax (361) 881-3149
Credentials & registration
- NPI registered
- May 2010 — 16 yrs on file
- Profile last updated
- August 12, 2024
- Year of graduation
- 2010 — 16 yrs since
- Specialty taxonomy
- 207RC0200X — NUCC code
- State license (1)
- Texas #Q9696
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1477872505. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
685
Distinct HCPCS
7
Medicare allowed
$78,560
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 285 | 70 | $73 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 218 | 56 | $115 | |
99291 |
Critical care, first 30-74 minutes | 99 | 36 | $214 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 25 | 12 | $125 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 24 | 23 | $121 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 22 | 21 | $174 | |
99239 |
Hospital discharge day management, more than 30 minutes | 12 | 12 | $116 |
In context: peer comparison
Among 2 peers in this city , average services per provider: 90. This provider delivers 7.6× the peer median.Open Payments
Industry payments received
All-time total
$306
Transactions
12
Manufacturers
4
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Amgen Inc. | 2 | $149.35 | |
| Philips North America LLC | 5 | $77.95 | |
| GlaxoSmithKline, LLC. | 3 | $50.04 | |
| Chiesi USA, Inc. | 2 | $28.84 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
273
Patients
43
Total drug cost
$109,922
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Trelegy Ellipta (Fluticasone/Umeclidin/Vilanter) | Brand | 91 | 19 | $72,463 |
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 48 | 0 | $1,323 |
| Breo Ellipta (Fluticasone/Vilanterol) | Brand | 29 | 0 | $12,198 |
| Azithromycin | Generic | 23 | 11 | $340 |
| Anoro Ellipta (Umeclidinium Brm/Vilanterol Tr) | Brand | 22 | 0 | $12,115 |
| Methylprednisolone | Generic | 21 | 13 | $214 |
| Prednisone | Generic | 17 | 0 | $48 |
| Breztri Aerosphere (Budesonide/Glycopyr/Formoterol) | Brand | 11 | 0 | $11,049 |
| Montelukast Sodium | Generic | 11 | 0 | $173 |
Hospital affiliations
Frequently asked questions
What is Dr. Thien Nguyen's medical specialty?
Dr. Thien Nguyen practices Critical Care Medicine (Internal Medicine) Physician in Katy, TX.
Where does Dr. Thien Nguyen practice?
Dr. Thien Nguyen practices at Po Box 475, Katy, TX 774920475. Office phone: 2817033020.
What is Dr. Thien Nguyen's NPI?
Dr. Thien Nguyen's National Provider Identifier (NPI) is 1477872505, issued by NPPES.
Does Dr. Thien Nguyen accept Medicare assignment?
Yes. Dr. Thien Nguyen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Thien Nguyen commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.