Katherine Seiler Harkess, M.D.
NPI 1295116143ActiveIndividual· Obstetrics & Gynecology· O'Fallon, MO
Obstetrics & Gynecology (M.D.) with Hh Physicians Network and 1 other group, practicing in O'Fallon, Missouri. Mostly services rather than prescriptions: Medicare paid $1,455 for 14 patients in 2024, with only 16 Part D claims. Medtronic, Inc. reported $34.76 in payments in 2025, mostly food and beverage. Lists Huntsville Hospital as a hospital affiliation.
Overview
| NPI | 1295116143 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jun 16, 2015 |
| Last updated in NPPES | Mar 25, 2020 |
| Certified by provider | Mar 25, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Obstetrics & Gynecology Primary | 207V00000X | 2019026841 | MO |
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 (AL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 14 |
|---|---|
| Services billed | 22 across 12 procedure codes |
| Paid by Medicare | $1,455 |
Part D prescriptions in 2024
| Prescriptions (claims) | 16 · 31 30-day fills |
|---|---|
| Total drug cost | $359.25 |
| Generic share | 100% of claims |
Education and affiliations
| Graduation year | 2015 |
|---|---|
| Medicare specialty | Obstetrics/Gynecology |
Medical groups
- Hh Physicians NetworkHuntsville, AL · 108 clinicians
- Emergency Physicians GroupHuntsville, AL · 50 clinicians
Hospital affiliation
- Huntsville HospitalHuntsville, AL
Industry payments (Open Payments)
- 2025$34.76 · 1 payment from 1 company
- 2024$18.75 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Medtronic, Inc. | $34.76 | 1 |
What the 2025 payments were for
- Food and Beverage$34.76 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Obstetrics & Gynecology providers in O'Fallon
- 1760513196