Hannah Irene Dewald, M.D.
NPI 1790040269ActiveIndividual· Obstetrics & Gynecology· Sioux City, IA
Obstetrics & Gynecology (M.D.) in Sioux City, Iowa, trained at University of Iowa, Rj & L Carver College of Medicine (class of 2012). 62 Medicare patients in 2024, $13,119 paid; nearly all of their 72 Part D prescriptions were generic (94%). Astellas Pharma US Inc was the largest of 4 companies reporting payments in 2025, $108.54 in all, mostly food and beverage.
Overview
| NPI | 1790040269 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 10, 2012 |
| Last updated in NPPES | Oct 18, 2022 |
| Certified by provider | Oct 18, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | 43380 | IA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Obstetrics/Gynecology (IA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 62 |
|---|---|
| Services billed | 669 across 36 procedure codes |
| Paid by Medicare | $13,119 |
Part D prescriptions in 2024
| Prescriptions (claims) | 72 · 95 30-day fills |
|---|---|
| Patients | 40 |
| Total drug cost | $1,844 |
| Generic share | 94% of claims |
Education and affiliations
| Medical school | University of Iowa, Rj & L Carver College of Medicine |
|---|---|
| Graduation year | 2012 |
| Medicare specialty | Obstetrics/Gynecology |
Medical group
- Siouxland Obstetrics and Gynecology PCSioux City, IA · 6 clinicians
Hospital affiliations
- Buena Vista Regional Medical CenterStorm Lake, IA
- St Lukes Regional Medical CenterSioux City, IA
Industry payments (Open Payments)
- 2025$108.54 · 6 payments from 4 companies
- 2024$101.51 · 5 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astellas Pharma US Inc | $50.13 | 3 |
| Sumitomo Pharma America, Inc. | $28.24 | 1 |
| Abbvie Inc. | $18.89 | 1 |
| Organon LLC | $11.28 | 1 |
What the 2025 payments were for
- Food and Beverage$108.54 · 6 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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