Doctor profile · Federal record
Dr. Leonardo Aliaga, MD
Emergency Medicine Physician (CMS: Emergency Medicine) · Stanford, CA
- NPI 1982041174
- Accepts Medicare
- MIPS 75.5 / 100 · 2023
- 13 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 3 locations .
- Primary practice
-
300 Pasteur Dr
Stanford, CA 943052200
(650) 723-4000 - Additional location
-
2315 Stockton Blvd
Sacramento, CA 958172201
(916) 734-8570
fax (916) 734-7950 - Additional location
-
700 Lawrence Expy
Santa Clara, CA 950515173
(408) 851-5300
Credentials & registration
- NPI registered
- May 2013 — 13 yrs on file
- Profile last updated
- March 14, 2024
- Year of graduation
- 2013 — 13 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State license (1)
- California #A135330
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1982041174. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
140
Distinct HCPCS
4
Medicare allowed
$20,255
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 65 | 62 | $189 | |
99284 |
Emergency department visit with moderate level of medical decision making | 50 | 49 | $131 | |
99283 |
Emergency department visit with low level of medical decision making | 14 | 14 | $78 | |
93308 |
Ultrasound of heart, follow-up | 11 | 11 | $28 |
In context: peer comparison
Among 60 peers in Stanford Emergency Medicine Physician, average services per provider: 60. This provider delivers 2.3× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
12
Patients
12
Total drug cost
$60
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Oxycodone Hcl | Generic | 12 | 12 | $60 |
Hospital affiliations
Frequently asked questions
What is Dr. Leonardo Aliaga's medical specialty?
Dr. Leonardo Aliaga practices Emergency Medicine Physician in Stanford, CA.
Where does Dr. Leonardo Aliaga practice?
Dr. Leonardo Aliaga practices at 300 Pasteur Dr, Stanford, CA 943052200. Office phone: 6507234000.
What is Dr. Leonardo Aliaga's NPI?
Dr. Leonardo Aliaga's National Provider Identifier (NPI) is 1982041174, issued by NPPES.
Does Dr. Leonardo Aliaga accept Medicare assignment?
Yes. Dr. Leonardo Aliaga accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Leonardo Aliaga commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with moderate level of medical decision making (HCPCS 99284); Emergency department visit with low level of medical decision making (HCPCS 99283). Source: CMS Medicare Physician & Other Practitioners file.