Doctor profile · Federal record
Dr. Hiep Nguyen, MD
Internal Medicine Physician · Berkeley, CA
- NPI 1588612881
- 20 yrs on file
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1510 4Th St, Suite 1
Berkeley, CA 947101717
(510) 525-8980
fax (510) 525-8982
Credentials & registration
- NPI registered
- May 2006 — 20 yrs on file
- Profile last updated
- July 9, 2008
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #A73583
- Medicaid
- CA #00A735830
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1588612881. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,061
Distinct HCPCS
4
Medicare allowed
$139,448
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 867 | 92 | $125 | |
99291 |
Critical care, first 30-74 minutes | 104 | 22 | $221 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 77 | 25 | $78 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 13 | 12 | $183 |
In context: peer comparison
Among 10 peers in Berkeley Internal Medicine Physician, average services per provider: 117. This provider delivers 9.1× the peer median.Open Payments
Industry payments received
All-time total
$14
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Novo Nordisk INC | 1 | $14.37 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
256
Patients
0
Total drug cost
$29,856
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Enoxaparin Sodium | Generic | 54 | 0 | $4,686 |
| Ipratropium-Albuterol (Ipratropium/Albuterol Sulfate) | Brand | 26 | 0 | $1,194 |
| Januvia (Sitagliptin Phosphate) | Brand | 26 | 0 | $8,643 |
| Baclofen | Generic | 25 | 0 | $734 |
| Levemir (Insulin Detemir) | Brand | 18 | 0 | $5,911 |
| Myrbetriq (Mirabegron) | Brand | 18 | 0 | $4,010 |
| Amlodipine Besylate | Generic | 16 | 0 | $101 |
| Novolin R (Insulin Regular, Human) | Brand | 14 | 0 | $2,073 |
| Acetylcysteine | Generic | 13 | 0 | $812 |
| Famotidine | Generic | 12 | 0 | $111 |
Frequently asked questions
What is Dr. Hiep Nguyen's medical specialty?
Dr. Hiep Nguyen practices Internal Medicine Physician in Berkeley, CA.
Where does Dr. Hiep Nguyen practice?
Dr. Hiep Nguyen practices at 1510 4Th St, Berkeley, CA 947101717. Office phone: 5105258980.
What is Dr. Hiep Nguyen's NPI?
Dr. Hiep Nguyen's National Provider Identifier (NPI) is 1588612881, issued by NPPES.
What procedures does Dr. Hiep Nguyen commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Critical care (HCPCS 99291); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.