Ralph Villaran, M.D.
NPI 1699858985ActiveIndividual· Internal Medicine, Infectious Disease· Highland, IN
Internal Medicine, Infectious Disease (M.D.) with Infectious Disease Specialists PC, practicing in Highland, Indiana. 783 Medicare patients in 2024, $262,230 paid; nearly all of their 247 Part D prescriptions were generic (90%). Viiv Healthcare Company was the largest of 2 companies reporting payments in 2025, $146.18 in all, mostly food and beverage. Lists Community Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1699858985 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Oct 23, 2006 |
| Last updated in NPPES | Sep 13, 2012 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Infectious Disease Primary | 207RI0200X | 036111376 | IL |
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 - Infectious Disease (IN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 783 |
|---|---|
| Services billed | 8,884 across 23 procedure codes |
| Paid by Medicare | $262,230 |
Part D prescriptions in 2024
| Prescriptions (claims) | 247 · 256 30-day fills |
|---|---|
| Patients | 130 |
| Total drug cost | $123,814 |
| Generic share | 90% of claims |
Education and affiliations
| Graduation year | 1999 |
|---|---|
| Medicare specialty | Infectious Disease |
Medical group
- Infectious Disease Specialists PCValparaiso, IN · 11 clinicians
Hospital affiliations
- Community HospitalMunster, IN
- Methodist Hospitals IncGary, IN
- Northwest Health - PorterValparaiso, IN
- Northwestern Medicine Central Dupage HospitalWinfield, IL
- St Mary Medical Center IncHobart, IN
Industry payments (Open Payments)
- 2025$146.18 · 3 payments from 2 companies
- 2024$438.83 · 10 payments from 7 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Viiv Healthcare Company | $99.84 | 1 |
| Paratek Pharmaceuticals, Inc. | $46.34 | 2 |
What the 2025 payments were for
- Food and Beverage$146.18 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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