Doctor profile · Federal record
Dr. Harry Nguyen, D.O.
Hepatology Physician (CMS: Gastroenterology) · Internal Medicine Physician · Gastroenterology Physician · Orange, CA
- NPI 1003277930
- Accepts Medicare
- MIPS 91.2 / 100 · 2023
- 10 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
101 the City Dr S
Orange, CA 928683201
(714) 456-7002 - Mailing address
-
101 the City Dr S Bldg 22C
Orange, CA 928683201
Credentials & registration
- NPI registered
- March 2016 — 10 yrs on file
- Profile last updated
- January 23, 2025
- Year of graduation
- 2016 — 10 yrs since
- Specialty taxonomy
- 207RI0008X — NUCC code
- State license (1)
- California #20A21145
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1003277930. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
16
Distinct HCPCS
1
Medicare allowed
$2,416
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 16 | 15 | $151 |
In context: peer comparison
Among 2 peers in Orange Hepatology Physician, average services per provider: 90. This provider delivers 0.2× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
13
Patients
0
Total drug cost
$17,902
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Vemlidy (Tenofovir Alafenamide) | Brand | 13 | 0 | $17,902 |
Frequently asked questions
What is Dr. Harry Nguyen's medical specialty?
Dr. Harry Nguyen practices Hepatology Physician in Orange, CA.
Where does Dr. Harry Nguyen practice?
Dr. Harry Nguyen practices at 101 the City Dr S, Orange, CA 928683201. Office phone: 7144567002.
What is Dr. Harry Nguyen's NPI?
Dr. Harry Nguyen's National Provider Identifier (NPI) is 1003277930, issued by NPPES.
Does Dr. Harry Nguyen accept Medicare assignment?
Yes. Dr. Harry Nguyen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Harry Nguyen commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.