Doctor profile · Federal record
Dr. Robert Nguyen, MD
Internal Medicine Physician (CMS: General Practice) · Colton, CA
- NPI 1144256900
- Accepts Medicare
- 24 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
400 N Pepper Ave
Colton, CA 923241801
(909) 580-1000 - Mailing address
-
Po Box 998
North Hollywood, CA 916030998
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- March 31, 2008
- Year of graduation
- 2002 — 24 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #A93153
- Medicaid
- CA #00A931530
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1144256900. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
177
Distinct HCPCS
3
Medicare allowed
$30,577
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 139 | 55 | $185 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 25 | 20 | $132 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 13 | 11 | $121 |
In context: peer comparison
Among 15 peers in Colton Internal Medicine Physician, average services per provider: 90. This provider delivers 2.0× the peer median.Open Payments
Industry payments received
All-time total
$285
Transactions
15
Manufacturers
4
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Boehringer Ingelheim Pharmaceuticals, INC. | 10 | $192.64 | |
| Abbvie INC. | 2 | $36.42 | |
| Novo Nordisk INC | 2 | $30.71 | |
| AstraZeneca Pharmaceuticals Lp | 1 | $25.64 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
4,999
Patients
1,723
Total drug cost
$1,171,121
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Metformin Hcl | Generic | 589 | 196 | $8,598 |
| Atorvastatin Calcium | Generic | 570 | 201 | $12,010 |
| Losartan Potassium | Generic | 565 | 181 | $12,835 |
| Amlodipine Besylate | Generic | 481 | 169 | $7,400 |
| Rosuvastatin Calcium | Generic | 409 | 138 | $14,228 |
| Jardiance (Empagliflozin) | Brand | 382 | 104 | $436,607 |
| Diclofenac Sodium | Generic | 349 | 141 | $29,459 |
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 265 | 109 | $12,400 |
| Lisinopril | Generic | 217 | 74 | $4,051 |
| Fluticasone Propionate | Generic | 215 | 93 | $3,057 |
Hospital affiliations
Frequently asked questions
What is Dr. Robert Nguyen's medical specialty?
Dr. Robert Nguyen practices Internal Medicine Physician in Colton, CA.
Where does Dr. Robert Nguyen practice?
Dr. Robert Nguyen practices at 400 N Pepper Ave, Colton, CA 923241801. Office phone: 9095801000.
What is Dr. Robert Nguyen's NPI?
Dr. Robert Nguyen's National Provider Identifier (NPI) is 1144256900, issued by NPPES.
Does Dr. Robert Nguyen accept Medicare assignment?
Yes. Dr. Robert Nguyen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Robert Nguyen commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); Established patient office or other outpatient visit (HCPCS 99214); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233). Source: CMS Medicare Physician & Other Practitioners file.