Gwang-Yi Hwang, M.D.
NPI 1558505586ActiveIndividual· Obstetrics & Gynecology· Lakewood, CO
Obstetrics & Gynecology (M.D.) with OB-GYN Affiliates, practicing in Lakewood, Colorado. 81 Medicare patients in 2024, $13,735 paid; nearly all of their 185 Part D prescriptions were generic (91%). Hologic Sales and Service, LLC was the largest of 12 companies reporting payments in 2025, $529.35 in all, mostly food and beverage. Lists Intermountain Health Lutheran Hospital as a hospital affiliation.
Overview
| NPI | 1558505586 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Apr 21, 2009 |
| Last updated in NPPES | Apr 21, 2009 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | 47480 | CO |
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 (CO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 81 |
|---|---|
| Services billed | 180 across 25 procedure codes |
| Paid by Medicare | $13,735 |
Part D prescriptions in 2024
| Prescriptions (claims) | 185 · 384 30-day fills |
|---|---|
| Patients | 65 |
| Total drug cost | $14,023 |
| Generic share | 91% of claims |
Education and affiliations
| Graduation year | 2009 |
|---|---|
| Medicare specialty | Obstetrics/Gynecology |
| Telehealth | Offers telehealth |
Medical group
- OB-GYN AffiliatesLone Tree, CO · 64 clinicians
Hospital affiliation
- Intermountain Health Lutheran HospitalWheat Ridge, CO
Industry payments (Open Payments)
- 2025$529.35 · 20 payments from 12 companies
- 2024$342.18 · 15 payments from 10 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Hologic Sales and Service, LLC | $89.17 | 4 |
| Coloplast Corp | $86.33 | 1 |
| Astellas Pharma US Inc | $75.34 | 3 |
| Sumitomo Pharma America, Inc. | $72.20 | 3 |
| Exeltis, USA Inc. | $38.60 | 2 |
What the 2025 payments were for
- Food and Beverage$529.35 · 20 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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