Doctor profile · Federal record
Dr. Peter Nguyen, D.O.
Emergency Medicine Physician (CMS: Emergency Medicine) · Emergency Medicine Physician · Irvine, CA
- NPI 1871933366
- Accepts Medicare
- 13 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 3 locations .
- Primary practice
-
1000 Fivepoint
Irvine, CA 926182377
(888) 333-4673 - Additional location
-
1500 Duarte RD
Duarte, CA 910103012
(800) 826-4673 - Additional location
-
2420 S State St
Tacoma, WA 984052845
(510) 867-2515
fax (510) 867-2515
Credentials & registration
- NPI registered
- June 2013 — 13 yrs on file
- Profile last updated
- November 24, 2025
- Year of graduation
- 2013 — 13 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State licenses (2)
- California #20A14978 · Washington #OP70029432
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1871933366. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
13
Distinct HCPCS
1
Medicare allowed
$1,627
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99284 |
Emergency department visit with moderate level of medical decision making | 13 | 13 | $125 |
In context: peer comparison
Among 6 peers in Irvine Emergency Medicine Physician, average services per provider: 132. This provider delivers 0.1× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
742
Patients
693
Total drug cost
$7,176
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Cephalexin | Generic | 340 | 337 | $3,189 |
| Nitrofurantoin Mono-Macro (Nitrofurantoin Monohyd/M-Cryst) | Brand | 134 | 133 | $1,506 |
| Ciprofloxacin Hcl | Generic | 35 | 35 | $262 |
| Ondansetron Odt (Ondansetron) | Brand | 34 | 33 | $234 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 32 | 32 | $217 |
| Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) | Brand | 24 | 24 | $137 |
| Prednisone | Generic | 22 | 22 | $176 |
| Amoxicillin | Generic | 20 | 20 | $202 |
| Meloxicam | Generic | 19 | 15 | $118 |
| Doxycycline Monohydrate | Generic | 17 | 17 | $162 |
Frequently asked questions
What is Dr. Peter Nguyen's medical specialty?
Dr. Peter Nguyen practices Emergency Medicine Physician in Irvine, CA.
Where does Dr. Peter Nguyen practice?
Dr. Peter Nguyen practices at 1000 Fivepoint, Irvine, CA 926182377. Office phone: 8883334673.
What is Dr. Peter Nguyen's NPI?
Dr. Peter Nguyen's National Provider Identifier (NPI) is 1871933366, issued by NPPES.
Does Dr. Peter Nguyen accept Medicare assignment?
Yes. Dr. Peter Nguyen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Peter Nguyen commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with moderate level of medical decision making (HCPCS 99284). Source: CMS Medicare Physician & Other Practitioners file.