Esther M. Park-Hwang, MD
NPI 1184638439ActiveIndividual· Obstetrics & Gynecology· Tacoma, WA
Obstetrics & Gynecology (MD) in Tacoma, Washington, trained at Loma Linda University School of Medicine (class of 1993). 23 Medicare patients in 2024, $4,076 paid; nearly all of their 74 Part D prescriptions were generic (96%). Phathom Pharmaceuticals, Inc. was the largest of 2 companies reporting payments in 2025, $93.23 in all, mostly food and beverage.
Overview
| NPI | 1184638439 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 29, 2006 |
| Last updated in NPPES | Apr 25, 2023 |
| Certified by provider | Apr 25, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | MD00036137 | WA |
| Obstetrics & Gynecology | 207V00000X | M-1624 | GU |
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 (GU); Practitioner - Obstetrics/Gynecology (WA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 23 |
|---|---|
| Services billed | 43 across 16 procedure codes |
| Paid by Medicare | $4,076 |
Part D prescriptions in 2024
| Prescriptions (claims) | 74 · 114 30-day fills |
|---|---|
| Patients | 42 |
| Total drug cost | $3,205 |
| Generic share | 96% of claims |
Education and affiliations
| Medical school | Loma Linda University School of Medicine |
|---|---|
| Graduation year | 1993 |
| Medicare specialty | Obstetrics/Gynecology |
Medical groups
- Multicare Health SystemTacoma, WA · 2,325 clinicians
- Kaiser Foundation Health Plan of WashingtonBellevue, WA · 1,526 clinicians
- South Hill Family Medicine PCBonney Lake, WA · 65 clinicians
- General Conference Corp of SdaTamuning, GU · 51 clinicians
- Lewis County Hospital District No 1Morton, WA · 28 clinicians
Hospital affiliation
- Arbor Health Morton HospitalMorton, WA
Industry payments (Open Payments)
- 2025$93.23 · 2 payments from 2 companies
- 2024$23.24 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Phathom Pharmaceuticals, Inc. | $77.45 | 1 |
| Abbvie Inc. | $15.78 | 1 |
What the 2025 payments were for
- Food and Beverage$93.23 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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