Doctor profile · Federal record
Dr. Gustavo Alza, MD
Internal Medicine Physician (CMS: Internal Medicine) · Los Angeles, CA
- NPI 1942498464
- Accepts Medicare
- MIPS 89.3 / 100 · 2023
- 45 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
5224 N Figueroa Street
Los Angeles, CA 900424118
(323) 259-0456
fax (323) 259-8486
Credentials & registration
- NPI registered
- October 2007 — 19 yrs on file
- Profile last updated
- December 3, 2007
- Year of graduation
- 1981 — 45 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #G48749
- Medicaid
- CA #00G487490
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1942498464. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,573
Distinct HCPCS
10
Medicare allowed
$165,759
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 804 | 107 | $135 | |
36415 |
Insertion of needle into vein for collection of blood sample | 172 | 97 | $8 | |
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 107 | 74 | $63 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 93 | 93 | $144 | |
G0444 |
Annual depression screening, 5 to 15 minutes | 93 | 92 | $21 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 72 | 50 | $197 | |
G0008 |
Administration of influenza virus vaccine | 59 | 59 | $34 | |
90662 |
Influenza vaccine split virus, preservative free | 55 | 55 | $72 | |
20610 |
Aspiration and/or injection of fluid from large joint | 39 | 19 | $61 | |
99496 |
Transitional care management services for problem of high complexity | 31 | 17 | $285 |
In context: peer comparison
Among 262 peers in Los Angeles Internal Medicine Physician, average services per provider: 160. This provider delivers 9.8× the peer median.Open Payments
Industry payments received
All-time total
$999
Transactions
14
Manufacturers
7
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Janssen Pharmaceuticals, INC | 5 | $559.05 | |
| Boehringer Ingelheim Pharmaceuticals, INC. | 2 | $152.42 | |
| Novo Nordisk INC | 2 | $145.58 | |
| Alkermes, INC. | 2 | $48.13 | |
| AstraZeneca Pharmaceuticals Lp | 1 | $34.17 | |
| GlaxoSmithKline, LLC. | 1 | $32.62 | |
| Bayer Healthcare Pharmaceuticals INC. | 1 | $26.65 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
2,401
Patients
547
Total drug cost
$59,661
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Quetiapine Fumarate | Generic | 260 | 41 | $7,749 |
| Rosuvastatin Calcium | Generic | 245 | 66 | $7,789 |
| Trazodone Hcl | Generic | 220 | 44 | $3,843 |
| Pioglitazone Hcl | Generic | 199 | 43 | $4,047 |
| Gabapentin | Generic | 186 | 35 | $4,828 |
| Levothyroxine Sodium | Generic | 174 | 40 | $2,992 |
| Metformin Hcl | Generic | 160 | 36 | $1,973 |
| Diclofenac Sodium | Generic | 158 | 42 | $6,190 |
| Losartan Potassium | Generic | 136 | 36 | $2,595 |
| Ezetimibe | Generic | 124 | 33 | $8,450 |
Frequently asked questions
What is Dr. Gustavo Alza's medical specialty?
Dr. Gustavo Alza practices Internal Medicine Physician in Los Angeles, CA.
Where does Dr. Gustavo Alza practice?
Dr. Gustavo Alza practices at 5224 N Figueroa Street, Los Angeles, CA 900424118. Office phone: 3232590456.
What is Dr. Gustavo Alza's NPI?
Dr. Gustavo Alza's National Provider Identifier (NPI) is 1942498464, issued by NPPES.
Does Dr. Gustavo Alza accept Medicare assignment?
Yes. Dr. Gustavo Alza accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gustavo Alza commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Insertion of needle into vein for collection of blood sample (HCPCS 36415); Established patient office or other outpatient visit (HCPCS 99212). Source: CMS Medicare Physician & Other Practitioners file.