Andrew E-Kong Chang, MD
NPI 1356784441ActiveIndividual· Obstetrics & Gynecology· Hamilton, OH
Obstetrics & Gynecology (MD) with Associates in Womens Health Care, practicing in Hamilton, Ohio. Mostly services rather than prescriptions: Medicare paid $2,667 for 23 patients in 2024, with only 20 Part D claims. Sage Therapeutics, LLC was the largest of 13 companies reporting payments in 2025, $704.83 in all, mostly food and beverage. Lists Sutter Roseville Medical Center as a hospital affiliation.
Overview
| NPI | 1356784441 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Apr 9, 2013 |
| Last updated in NPPES | Nov 25, 2020 |
| Certified by provider | Nov 25, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | 35.137264 | OH |
| Obstetrics & Gynecology | 207V00000X | 51355 | KY |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Obstetrics/Gynecology (CA); Practitioner - Obstetrics/Gynecology (OH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 23 |
|---|---|
| Services billed | 37 across 13 procedure codes |
| Paid by Medicare | $2,667 |
Part D prescriptions in 2024
| Prescriptions (claims) | 20 · 33 30-day fills |
|---|---|
| Patients | 12 |
| Total drug cost | $951.28 |
| Generic share | 95% of claims |
Education and affiliations
| Graduation year | 2013 |
|---|---|
| Medicare specialty | Obstetrics/Gynecology |
| Telehealth | Offers telehealth |
Medical group
- Associates in Womens Health CareRoseville, CA · 6 clinicians
Hospital affiliation
- Sutter Roseville Medical CenterRoseville, CA
Industry payments (Open Payments)
- 2025$704.83 · 34 payments from 13 companies
- 2024$2,268 · 39 payments from 15 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Sage Therapeutics, LLC | $153.49 | 7 |
| Hologic Sales and Service, LLC | $89.30 | 4 |
| Exact Sciences Corporation | $79.15 | 3 |
| Mayne Pharma Commercial LLC | $75.01 | 4 |
| Millicent US Inc | $61.65 | 3 |
What the 2025 payments were for
- Food and Beverage$704.83 · 34 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other OB-GYNs in Hamilton
- 1063456747
- 1285749846
- 1790960953
- 1033491345
- 1598937732
- 1760514962
- 1912937608
- 1871588103
- 1639270192
- 1114036431