Kathleen M. Villarreal, M.D.
NPI 1255334058ActiveIndividual· Internal Medicine· Chillicothe, OH
Internal Medicine (M.D.) in Chillicothe, Ohio, trained at University of Toledo College of Medicine (class of 1993). Their prescriptions cost Medicare Part D more than their services did: $536,595 for 6,130 claims, against $15,818 paid for services in 2024. Abbvie Inc. was the largest of 13 companies reporting payments in 2025, $704.22 in all, mostly food and beverage.
Overview
| NPI | 1255334058 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 24, 2005 |
| Last updated in NPPES | Dec 14, 2020 |
| Certified by provider | Dec 14, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 35.0772266 | OH |
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 - Pediatric Medicine (OH) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 137 |
|---|---|
| Services billed | 467 across 20 procedure codes |
| Paid by Medicare | $15,818 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,130 · 11,803 30-day fills |
|---|---|
| Patients | 331 |
| Total drug cost | $536,595 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | University of Toledo College of Medicine |
|---|---|
| Graduation year | 1993 |
| Medicare specialty | Pediatric Medicine |
| Secondary specialties | Internal Medicine |
Medical group
- Adena Medical Group LLCChillicothe, OH · 386 clinicians
Hospital affiliations
- Adena Fayette Medical CenterWashington Ch, OH
- Adena Regional Medical CenterChillicothe, OH
- Greenfield Area Medical CenterGreenfield, OH
Industry payments (Open Payments)
- 2025$704.22 · 40 payments from 13 companies
- 2024$1,132 · 70 payments from 15 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $148.65 | 13 |
| Lilly USA, LLC | $108.00 | 5 |
| Bayer Healthcare Pharmaceuticals Inc. | $94.27 | 6 |
| Astrazeneca Pharmaceuticals LP | $57.80 | 3 |
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $55.14 | 2 |
What the 2025 payments were for
- Food and Beverage$659.22 · 39 payments
- Education$45.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 70 internal medicine physicians in Chillicothe · All internal medicine physicians in Ohio