Ana Lia Castellanos, MD
NPI 1790872190ActiveIndividual· Internal Medicine, Nephrology· Lexington, KY
Internal Medicine, Nephrology (MD) with Kentucky Medical Services Foundation, Inc, practicing in Lexington, Kentucky. Their prescriptions cost Medicare Part D more than their services did: $335,652 for 2,482 claims, against $52,433 paid for services in 2024. Fresenius USA Marketing, Inc. reported $170.40 in payments in 2025, mostly food and beverage. Lists Baptist Health Richmond and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1790872190 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Oct 6, 2006 |
| Last updated in NPPES | Mar 5, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 38843 | KY |
| Internal Medicine | 207R00000X | 38843 | KY |
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 - Nephrology (KY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 178 |
|---|---|
| Services billed | 568 across 15 procedure codes |
| Paid by Medicare | $52,433 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,482 · 4,618 30-day fills |
|---|---|
| Patients | 337 |
| Total drug cost | $335,652 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 1998 |
|---|---|
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
Medical group
- Kentucky Medical Services Foundation, IncLexington, KY · 967 clinicians
Hospital affiliations
- Baptist Health RichmondRichmond, KY
- Chi Saint Joseph Berea NfBerea, KY
- Lake Cumberland Regional HospitalSomerset, KY
- Taylor Regional HospitalCampbellsville, KY
- University of Kentucky HospitalLexington, KY
Other facilities
- Fmc - Lexington NorthDialysis facility · Lexington, KY
Industry payments (Open Payments)
- 2025$170.40 · 10 payments from 1 company
- 2024$77.98 · 4 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Fresenius USA Marketing, Inc. | $170.40 | 10 |
What the 2025 payments were for
- Food and Beverage$170.40 · 10 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 48 nephrologists in Lexington · All nephrologists in Kentucky