Doctor profile · Federal record
Dr. Tuan Xuan Nguyen, MD
Internal Medicine Physician (CMS: Internal Medicine) · Garden Grove, CA
- NPI 1679519821
- Accepts Medicare
- MIPS 29.4 / 100 · 2023
- 37 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
14221 Euclid St, Ste H
Garden Grove, CA 928434991
(714) 530-2420
fax (714) 530-2478
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- October 15, 2018
- Year of graduation
- 1989 — 37 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #A48636
- Medicaid
- CA #00A486360
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1679519821. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
8,727
Distinct HCPCS
10
Medicare allowed
$649,456
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99490 |
Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | 1,919 | 201 | $67 | |
99457 |
Management using the results of remote vital sign monitoring per calendar month, first 20 minutes | 1,918 | 201 | $53 | |
99454 |
Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days | 1,761 | 197 | $58 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 1,562 | 244 | $98 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 824 | 217 | $139 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 144 | 144 | $140 | |
G0444 |
Annual depression screening, 5 to 15 minutes | 142 | 142 | $21 | |
36415 |
Insertion of needle into vein for collection of blood sample | 126 | 100 | $8 | |
93922 |
Ultrasound study of arm and leg arteries | 122 | 118 | $95 | |
G0008 |
Administration of influenza virus vaccine | 97 | 95 | $33 |
In context: peer comparison
Among 16 peers in this city , average services per provider: 257. This provider delivers 34× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
9,826
Patients
1,938
Total drug cost
$119,321
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 1,316 | 266 | $17,332 |
| Losartan Potassium | Generic | 1,215 | 226 | $14,709 |
| Amlodipine Besylate | Generic | 1,174 | 219 | $11,074 |
| Metformin Hcl | Generic | 738 | 137 | $6,427 |
| Gabapentin | Generic | 731 | 140 | $11,272 |
| Famotidine | Generic | 612 | 131 | $5,942 |
| Triamcinolone Acetonide | Generic | 581 | 160 | $8,544 |
| Tamsulosin Hcl | Generic | 557 | 95 | $7,206 |
| Lovastatin | Generic | 472 | 73 | $5,201 |
| Montelukast Sodium | Generic | 446 | 87 | $6,636 |
Frequently asked questions
What is Dr. Tuan Xuan Nguyen's medical specialty?
Dr. Tuan Xuan Nguyen practices Internal Medicine Physician in Garden Grove, CA.
Where does Dr. Tuan Xuan Nguyen practice?
Dr. Tuan Xuan Nguyen practices at 14221 Euclid St, Garden Grove, CA 928434991. Office phone: 7145302420.
What is Dr. Tuan Xuan Nguyen's NPI?
Dr. Tuan Xuan Nguyen's National Provider Identifier (NPI) is 1679519821, issued by NPPES.
Does Dr. Tuan Xuan Nguyen accept Medicare assignment?
Yes. Dr. Tuan Xuan Nguyen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Tuan Xuan Nguyen commonly perform?
Top Medicare-reported procedures in 2023: Chronic care management services (HCPCS 99490); Management using the results of remote vital sign monitoring per calendar month (HCPCS 99457); Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days (HCPCS 99454). Source: CMS Medicare Physician & Other Practitioners file.