Doctor profile · Federal record
Dr. Michael Mai, MD
Orthopaedic Surgery Physician (CMS: Orthopedic Surgery) · Adult Reconstructive Orthopaedic Surgery Physician · Corona, CA
- NPI 1124025598
- Accepts Medicare
- 41 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
21634 Retreat Pkwy
Corona, CA 928836100
(951) 493-6930
fax (951) 826-8136 - Additional location
-
818 Magnolia Ave.
Corona, CA 92879
fax (951) 272-4093
Credentials & registration
- NPI registered
- June 2005 — 21 yrs on file
- Profile last updated
- April 14, 2025
- Year of graduation
- 1985 — 41 yrs since
- Specialty taxonomy
- 207X00000X — NUCC code
- State license (1)
- California #G57605
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1124025598. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
38
Distinct HCPCS
1
Medicare allowed
$3,549
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 38 | 23 | $93 |
In context: peer comparison
Among 6 peers in Corona Orthopaedic Surgery Physician, average services per provider: 68. This provider delivers 0.6× the peer median.Open Payments
Industry payments received
All-time total
$48
Transactions
2
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Atricure, INC. | 1 | $27.22 | |
| Medtronic, INC. | 1 | $20.74 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
67
Patients
29
Total drug cost
$648
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Ibuprofen | Generic | 34 | 17 | $295 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 21 | 12 | $214 |
| Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) | Brand | 12 | 0 | $139 |
Hospital affiliations
Frequently asked questions
What is Dr. Michael Mai's medical specialty?
Dr. Michael Mai practices Orthopaedic Surgery Physician in Corona, CA.
Where does Dr. Michael Mai practice?
Dr. Michael Mai practices at 21634 Retreat Pkwy, Corona, CA 928836100. Office phone: 9514936930.
What is Dr. Michael Mai's NPI?
Dr. Michael Mai's National Provider Identifier (NPI) is 1124025598, issued by NPPES.
Does Dr. Michael Mai accept Medicare assignment?
Yes. Dr. Michael Mai accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michael Mai commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.