Johanna Vivienne Ferriols Leyco-Policarpio, M.D.
NPI 1659508265ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Katy, TX
Internal Medicine, Endocrinology, Diabetes & Metabolism (M.D.) with Katy Diabetes and Endocrinology PLLC, practicing in Katy, Texas. Their prescriptions cost Medicare Part D more than their services did: $916,391 for 2,219 claims, against $34,658 paid for services in 2024. Novo Nordisk Inc was the largest of 14 companies reporting payments in 2025, $675.78 in all, mostly food and beverage. Lists Bellville Medical Center and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1659508265 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 22, 2009 |
| Last updated in NPPES | Jan 5, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | P1193 | TX |
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 - Endocrinology (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 145 |
|---|---|
| Services billed | 384 across 7 procedure codes |
| Paid by Medicare | $34,658 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,219 · 5,090 30-day fills |
|---|---|
| Patients | 219 |
| Total drug cost | $916,391 |
| Generic share | 51% of claims |
Education and affiliations
| Graduation year | 2003 |
|---|---|
| Medicare specialty | Endocrinology |
Medical group
- Katy Diabetes and Endocrinology PLLCKaty, TX · 2 clinicians
Hospital affiliations
- Bellville Medical CenterBellville, TX
- Columbus Community HospitalColumbus, TX
- Houston Methodist HospitalHouston, TX
- Houston Methodist West HospitalHouston, TX
- Memorial Hermann Katy HospitalKaty, TX
Industry payments (Open Payments)
- 2025$675.78 · 39 payments from 14 companies
- 2024$1,068 · 61 payments from 17 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $222.64 | 15 |
| Lilly USA, LLC | $86.30 | 5 |
| Tandem Diabetes Care, Inc. | $81.48 | 4 |
| Abbott Laboratories | $63.49 | 3 |
| Beta Bionics, Inc. | $39.03 | 2 |
What the 2025 payments were for
- Food and Beverage$675.78 · 39 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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