Julia Jaekyung Chang, MD
NPI 1619330222ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Stanford, CA
Internal Medicine, Endocrinology, Diabetes & Metabolism (MD) with Stanford Health Care, practicing in Stanford, California. Their prescriptions cost Medicare Part D more than their services did: $701,440 for 1,462 claims, against $46,953 paid for services in 2024. Abbott Laboratories was the largest of 2 companies reporting payments in 2024, $153.69 in all, mostly food and beverage. Lists Community Hospital of the Monterey Peninsula and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1619330222 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 31, 2016 |
| Last updated in NPPES | Apr 16, 2024 |
| Certified by provider | Apr 16, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | A150943 | CA |
| Internal Medicine | 207R00000X | A150943 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Endocrinology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 218 |
|---|---|
| Services billed | 555 across 17 procedure codes |
| Paid by Medicare | $46,953 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,462 · 3,191 30-day fills |
|---|---|
| Patients | 185 |
| Total drug cost | $701,440 |
| Generic share | 58% of claims |
Education and affiliations
| Graduation year | 2016 |
|---|---|
| Medicare specialty | Endocrinology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Stanford Health CareStanford, CA · 3,122 clinicians
Hospital affiliations
- Community Hospital of the Monterey PeninsulaMonterey, CA
- Stanford Health CareStanford, CA
- Stanford Health Care Tri-ValleyPleasanton, CA
Industry payments (Open Payments)
- 2024$153.69 · 2 payments from 2 companies
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Abbott Laboratories | $121.42 | 1 |
| Novo Nordisk Inc | $32.27 | 1 |
What the 2024 payments were for
- Food and Beverage$121.42 · 1 payment
- Education$32.27 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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