Doctor profile · Federal record
Dr. Julia Chang, MD
Endocrinology, Diabetes & Metabolism Physician (CMS: Endocrinology) · Internal Medicine Physician · Stanford, CA
- NPI 1619330222
- Accepts Medicare
- MIPS 75.5 / 100 · 2023
- 10 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
300 Pasteur Dr
Stanford, CA 943052200
(650) 723-4000
Credentials & registration
- NPI registered
- March 2016 — 10 yrs on file
- Profile last updated
- April 16, 2024
- Year of graduation
- 2016 — 10 yrs since
- Specialty taxonomy
- 207RE0101X — NUCC code
- State license (1)
- California #A150943
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1619330222. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
356
Distinct HCPCS
7
Medicare allowed
$45,095
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 122 | 82 | $111 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 97 | 70 | $163 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 51 | 24 | $86 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 26 | 16 | $125 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 24 | 22 | $147 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 22 | 19 | $75 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 14 | 14 | $205 |
In context: peer comparison
Among 10 peers in Stanford Endocrinology, Diabetes & Metabolism Physician, average services per provider: 95. This provider delivers 3.7× the peer median.Open Payments
Industry payments received
All-time total
$154
Transactions
2
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbott Laboratories | 1 | $121.42 | |
| Novo Nordisk INC | 1 | $32.27 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
944
Patients
187
Total drug cost
$369,835
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Levothyroxine Sodium | Generic | 228 | 61 | $6,093 |
| Hydrocortisone | Generic | 148 | 36 | $8,437 |
| Ozempic (Semaglutide) | Brand | 64 | 11 | $76,886 |
| Metformin Hcl | Generic | 58 | 20 | $961 |
| Testosterone | Generic | 56 | 15 | $16,453 |
| Cabergoline | Generic | 54 | 0 | $4,773 |
| Jardiance (Empagliflozin) | Brand | 54 | 16 | $75,182 |
| Prednisone | Generic | 50 | 13 | $710 |
| Alendronate Sodium | Generic | 42 | 15 | $650 |
| Mounjaro (Tirzepatide) | Brand | 42 | 0 | $50,846 |
Hospital affiliations
Frequently asked questions
What is Dr. Julia Chang's medical specialty?
Dr. Julia Chang practices Endocrinology, Diabetes & Metabolism Physician in Stanford, CA.
Where does Dr. Julia Chang practice?
Dr. Julia Chang practices at 300 Pasteur Dr, Stanford, CA 943052200. Office phone: 6507234000.
What is Dr. Julia Chang's NPI?
Dr. Julia Chang's National Provider Identifier (NPI) is 1619330222, issued by NPPES.
Does Dr. Julia Chang accept Medicare assignment?
Yes. Dr. Julia Chang accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Julia Chang commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99215); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232). Source: CMS Medicare Physician & Other Practitioners file.