Yoon Jeong Chang, M.D.
NPI 1386859163ActiveIndividual· Obstetrics & Gynecology· Austell, GA
Obstetrics & Gynecology (M.D.) with Wellstar Medical Group LLC, practicing in Austell, Georgia. 72 Medicare patients in 2024, $18,869 paid; nearly all of their 479 Part D prescriptions were generic (92%). Intuitive Surgical, Inc. was the largest of 8 companies reporting payments in 2025, $586.51 in all, mostly food and beverage. Lists Wellstar Cobb Medical Center and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1386859163 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 14, 2007 |
| Last updated in NPPES | Jun 30, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | 59615 | GA |
| Obstetrics & Gynecology, Obstetrics | 207VX0000X | 4301082153 | MI |
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 - Obstetrics/Gynecology (GA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 72 |
|---|---|
| Services billed | 246 across 22 procedure codes |
| Paid by Medicare | $18,869 |
Part D prescriptions in 2024
| Prescriptions (claims) | 479 · 751 30-day fills |
|---|---|
| Patients | 157 |
| Total drug cost | $23,188 |
| Generic share | 92% of claims |
Education and affiliations
| Graduation year | 1998 |
|---|---|
| Medicare specialty | Obstetrics/Gynecology |
Medical group
- Wellstar Medical Group LLCMarietta, GA · 3,093 clinicians
Hospital affiliations
- Wellstar Cobb Medical CenterAustell, GA
- Wellstar Douglas Medical CenterDouglasville, GA
- Wellstar Kennestone Regional Medical CenterMarietta, GA
- Wellstar Paulding Medical CenterHiram, GA
Industry payments (Open Payments)
- 2025$586.51 · 13 payments from 8 companies
- 2024$558.63 · 18 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Intuitive Surgical, Inc. | $305.75 | 3 |
| Medtronic, Inc. | $115.42 | 1 |
| Millicent US Inc | $62.00 | 3 |
| Evofem Biosciences, Inc. | $31.70 | 2 |
| Biogen, Inc. | $26.51 | 1 |
What the 2025 payments were for
- Food and Beverage$586.51 · 13 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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