Alejandra Andresa Villagrasa Flores, M.D.
NPI 1649683699ActiveIndividual· Internal Medicine, Nephrology· Canovanas, PR
Internal Medicine, Nephrology (M.D.) in Canovanas, Puerto Rico, trained at San Juan Bautista School of Medicine (class of 2014). Their prescriptions cost Medicare Part D more than their services did: $295,247 for 2,787 claims, against $8,310 paid for services in 2024. Vifor Pharma, Inc. was the largest of 3 companies reporting payments in 2025, $113.74 in all, mostly food and beverage.
Overview
| NPI | 1649683699 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jun 7, 2014 |
| Last updated in NPPES | Aug 15, 2024 |
| Certified by provider | Aug 15, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 19560 | PR |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
| Internal Medicine | 207R00000X | 31727-R | PR |
| Internal Medicine | 207R00000X | 13495-I | PR |
| Internal Medicine | 207R00000X | 19560 | PR |
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 (PR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 18 |
|---|---|
| Services billed | 66 across 7 procedure codes |
| Paid by Medicare | $8,310 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,787 · 3,446 30-day fills |
|---|---|
| Patients | 302 |
| Total drug cost | $295,247 |
| Generic share | 80% of claims |
Education and affiliations
| Medical school | San Juan Bautista School of Medicine |
|---|---|
| Graduation year | 2014 |
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
Hospital affiliation
- Hospital Upr, Dr Federico TrillaCarolina, PR
Industry payments (Open Payments)
- 2025$113.74 · 4 payments from 3 companies
- 2024$282.78 · 6 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Vifor Pharma, Inc. | $60.00 | 2 |
| Calliditas Therapeutics US Inc. | $29.13 | 1 |
| Astrazeneca Pharmaceuticals LP | $24.61 | 1 |
What the 2025 payments were for
- Food and Beverage$113.74 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other nephrologists in Canovanas
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- 1336209063
- 1629221940
- 1700758745