Kathryn Ferry Ziegler, MD
NPI 1114111408ActiveIndividual· Internal Medicine· Spring, TX
Internal Medicine (MD) in Spring, Texas, trained at Baylor College of Medicine (class of 2003). Their prescriptions cost Medicare Part D more than their services did: $581,218 for 4,589 claims, against $141,011 paid for services in 2024. Novo Nordisk Inc was the largest of 17 companies reporting payments in 2025, $1,115 in all, mostly food and beverage.
Overview
| NPI | 1114111408 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 30, 2007 |
| Last updated in NPPES | Apr 3, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | M7791 | TX |
| Pediatrics | 208000000X | M7791 | TX |
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 - Internal Medicine (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 305 |
|---|---|
| Services billed | 2,627 across 42 procedure codes |
| Paid by Medicare | $141,011 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,589 · 11,920 30-day fills |
|---|---|
| Patients | 430 |
| Total drug cost | $581,218 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | Baylor College of Medicine |
|---|---|
| Graduation year | 2003 |
| Medicare specialty | Internal Medicine |
| Secondary specialties | Pediatric Medicine |
| Telehealth | Offers telehealth |
Medical group
- Cypress Physicians AssociationHouston, TX · 7 clinicians
Hospital affiliations
- Houston Methodist the Woodlands HospitalThe Woodlands, TX
- Houston Methodist Willowbrook HospitalHouston, TX
- Huntsville Memorial HospitalHuntsville, TX
- St Luke's the Woodlands HospitalThe Woodlands, TX
- Tops Surgical Specialty HospitalHouston, TX
Other facilities
- Enhabit Home HealthHome health agency · Houston, TX
- Phoenix Family Healthcare Inc.Home health agency · Houston, TX
- Phoenix Healthcare Services, IncHome health agency · Houston, TX
Industry payments (Open Payments)
- 2025$1,115 · 56 payments from 17 companies
- 2024$1,323 · 49 payments from 18 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $320.31 | 17 |
| Lilly USA, LLC | $160.43 | 3 |
| Amgen Inc. | $154.87 | 13 |
| Corcept Therapeutics | $104.55 | 2 |
| Pfizer Inc. | $74.89 | 3 |
What the 2025 payments were for
- Food and Beverage$1,115 · 56 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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