Doctor profile · Federal record
Dr. Michael Loi, DO
Internal Medicine Physician · Student in an Organized Health Care Education/Training Program · Irvine, CA
- NPI 1861057556
- 7 yrs on file
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
11 Technology Dr
Irvine, CA 926182302
(949) 923-3200 - Mailing address
-
Po Box 35380
Las Vegas, NV 891335380
Credentials & registration
- NPI registered
- May 2019 — 7 yrs on file
- Profile last updated
- November 23, 2025
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #20A22634
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1861057556. Last verified May 11, 2026.Open Payments
Industry payments received
All-time total
$681
Transactions
9
Manufacturers
5
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Janssen Pharmaceuticals, INC | 3 | $282.27 | |
| AstraZeneca Pharmaceuticals Lp | 3 | $226.34 | |
| Merck Sharp & Dohme LLC | 1 | $125.00 | |
| Puma Biotechnology, INC. | 1 | $26.33 | |
| Aveo Pharmaceuticals, INC. | 1 | $20.77 |
By nature of payment
Frequently asked questions
What is Dr. Michael Loi's medical specialty?
Dr. Michael Loi practices Internal Medicine Physician in Irvine, CA.
Where does Dr. Michael Loi practice?
Dr. Michael Loi practices at 11 Technology Dr, Irvine, CA 926182302. Office phone: 9499233200.
What is Dr. Michael Loi's NPI?
Dr. Michael Loi's National Provider Identifier (NPI) is 1861057556, issued by NPPES.