Doctor profile · Federal record
Dr. Alex Leung, M.D
Internal Medicine Physician (CMS: Internal Medicine) · Family Medicine Physician · Fullerton, CA
- NPI 1669414512
- Accepts Medicare
- 23 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
279 Imperial Hwy, Suite 730
Fullerton, CA 928351041
(714) 449-4842
fax (714) 449-4956 - Mailing address
-
279 E. Imperial Hwy, Suite 730
Fullerton, CA 92835
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- November 23, 2009
- Year of graduation
- 2003 — 23 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #A88871
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1669414512. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
661
Distinct HCPCS
6
Medicare allowed
$85,459
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 342 | 156 | $124 | |
99239 |
Hospital discharge day management, more than 30 minutes | 131 | 128 | $120 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 91 | 91 | $183 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 71 | 46 | $83 | |
99236 |
Initial hospital care with same-day admission and discharge with high level of medical decision making, per day, if using time, at least 85 minutes | 15 | 15 | $220 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 11 | 11 | $137 |
In context: peer comparison
Among 14 peers in this city , average services per provider: 146. This provider delivers 4.5× the peer median.Open Payments
Industry payments received
All-time total
$352
Transactions
11
Manufacturers
4
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| LeMaitre Vascular, Inc. | 8 | $239.30 | |
| Philips North America LLC | 1 | $54.85 | |
| Medtronic, Inc. | 1 | $31.37 | |
| Aroa Biosurgery Incorporated | 1 | $26.92 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
380
Patients
210
Total drug cost
$29,443
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Cefpodoxime Proxetil | Generic | 51 | 50 | $2,674 |
| Atorvastatin Calcium | Generic | 45 | 23 | $311 |
| Furosemide | Generic | 39 | 27 | $234 |
| Eliquis (Apixaban) | Brand | 34 | 20 | $21,615 |
| Potassium Chloride | Generic | 33 | 21 | $471 |
| Clopidogrel (Clopidogrel Bisulfate) | Brand | 22 | 13 | $188 |
| Carvedilol | Generic | 21 | 13 | $161 |
| Amlodipine Besylate | Generic | 20 | 11 | $68 |
| Azithromycin | Generic | 20 | 20 | $61 |
| Levothyroxine Sodium | Generic | 20 | 0 | $201 |
Frequently asked questions
What is Dr. Alex Leung's medical specialty?
Dr. Alex Leung practices Internal Medicine Physician in Fullerton, CA.
Where does Dr. Alex Leung practice?
Dr. Alex Leung practices at 279 Imperial Hwy, Fullerton, CA 928351041. Office phone: 7144494842.
What is Dr. Alex Leung's NPI?
Dr. Alex Leung's National Provider Identifier (NPI) is 1669414512, issued by NPPES.
Does Dr. Alex Leung accept Medicare assignment?
Yes. Dr. Alex Leung accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Alex Leung commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Hospital discharge day management (HCPCS 99239); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.