Doctor profile · Federal record
Dr. Amy Chang, MD
Endocrinology, Diabetes & Metabolism Physician (CMS: Endocrinology) · La Jolla, CA
- NPI 1750568911
- Accepts Medicare
- 22 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
9898 Genesee Ave
La Jolla, CA 920371205
(858) 824-5335 - Mailing address
-
10790 Rancho Bernardo RD
San Diego, CA 921275705
Credentials & registration
- NPI registered
- January 2008 — 18 yrs on file
- Profile last updated
- February 25, 2020
- Year of graduation
- 2004 — 22 yrs since
- Specialty taxonomy
- 207RE0101X — NUCC code
- State license (1)
- California #A93385
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1750568911. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
2,351
Distinct HCPCS
8
Medicare allowed
$133,949
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J0897 |
Injection, denosumab, 1 mg | 1,561 | 23 | $21 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 385 | 259 | $136 | |
95251 |
Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report | 129 | 68 | $36 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 111 | 88 | $191 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 70 | 70 | $177 | |
96372 |
Injection of drug or substance under skin or into muscle | 52 | 28 | $15 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 32 | 32 | $233 | |
10005 |
Fine needle aspiration biopsy using ultrasound guidance, first growth | 11 | 11 | $149 |
In context: peer comparison
Among 8 peers in this city , average services per provider: 907. This provider delivers 2.6× the peer median.Open Payments
Industry payments received
All-time total
$168
Transactions
3
Manufacturers
3
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| GENZYME CORPORATION | 1 | $125.00 | |
| Medtronic, Inc. | 1 | $24.78 | |
| ViiV Healthcare Company | 1 | $17.82 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,718
Patients
484
Total drug cost
$1,049,067
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Levothyroxine Sodium | Generic | 371 | 99 | $7,450 |
| Synthroid (Levothyroxine Sodium) | Brand | 147 | 35 | $13,902 |
| Ozempic (Semaglutide) | Brand | 144 | 33 | $228,455 |
| Metformin Hcl Er (Metformin Hcl) | Brand | 142 | 55 | $4,148 |
| Mounjaro (Tirzepatide) | Brand | 117 | 26 | $171,566 |
| Metformin Hcl | Generic | 108 | 31 | $1,293 |
| Farxiga (Dapagliflozin Propanediol) | Brand | 106 | 25 | $108,667 |
| Trulicity (Dulaglutide) | Brand | 102 | 25 | $163,124 |
| Jardiance (Empagliflozin) | Brand | 83 | 26 | $112,399 |
| Humalog Kwikpen U-100 (Insulin Lispro) | Brand | 73 | 23 | $84,158 |
Hospital affiliations
Frequently asked questions
What is Dr. Amy Chang's medical specialty?
Dr. Amy Chang practices Endocrinology, Diabetes & Metabolism Physician in La Jolla, CA.
Where does Dr. Amy Chang practice?
Dr. Amy Chang practices at 9898 Genesee Ave, La Jolla, CA 920371205. Office phone: 8588245335.
What is Dr. Amy Chang's NPI?
Dr. Amy Chang's National Provider Identifier (NPI) is 1750568911, issued by NPPES.
Does Dr. Amy Chang accept Medicare assignment?
Yes. Dr. Amy Chang accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Amy Chang commonly perform?
Top Medicare-reported procedures in 2023: Injection, denosumab, 1 mg (HCPCS J0897); Established patient office or other outpatient visit (HCPCS 99214); Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report (HCPCS 95251). Source: CMS Medicare Physician & Other Practitioners file.