Doctor profile · Federal record
Dr. Michael Nguyen, DO
Hospitalist Physician (CMS: Hospitalist) · Internal Medicine Physician · Riverside, CA
- NPI 1366939043
- Accepts Medicare
- 8 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
4445 Magnolia Ave
Riverside, CA 925014135
(951) 788-3000 - Mailing address
-
12223 Highland Ave Ste 106-526
Rancho Cucamonga, CA 917392574
Credentials & registration
- NPI registered
- April 2018 — 8 yrs on file
- Profile last updated
- October 1, 2023
- Year of graduation
- 2018 — 8 yrs since
- Specialty taxonomy
- 208M00000X — NUCC code
- State license (1)
- California #19061
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1366939043. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
400
Distinct HCPCS
4
Medicare allowed
$57,399
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 199 | 77 | $121 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 73 | 68 | $176 | |
99239 |
Hospital discharge day management, more than 30 minutes | 73 | 70 | $117 | |
99291 |
Critical care, first 30-74 minutes | 55 | 18 | $216 |
In context: peer comparison
Among 9 peers in this city , average services per provider: 88. This provider delivers 4.5× the peer median.Open Payments
Industry payments received
All-time total
$128
Transactions
2
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| ZOLL Services LLC (A/K/A ZOLL LifeCor Corp) | 1 | $99.04 | |
| Novartis Pharmaceuticals Corporation | 1 | $29.25 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
11
Patients
0
Total drug cost
$39
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Furosemide | Generic | 11 | 0 | $39 |
Hospital affiliations
Frequently asked questions
What is Dr. Michael Nguyen's medical specialty?
Dr. Michael Nguyen practices Hospitalist Physician in Riverside, CA.
Where does Dr. Michael Nguyen practice?
Dr. Michael Nguyen practices at 4445 Magnolia Ave, Riverside, CA 925014135. Office phone: 9517883000.
What is Dr. Michael Nguyen's NPI?
Dr. Michael Nguyen's National Provider Identifier (NPI) is 1366939043, issued by NPPES.
Does Dr. Michael Nguyen accept Medicare assignment?
Yes. Dr. Michael Nguyen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michael Nguyen commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Initial hospital care with moderate level of medical decision making (HCPCS 99223); Hospital discharge day management (HCPCS 99239). Source: CMS Medicare Physician & Other Practitioners file.