Vincent Doan, DO
NPI 1215671391ActiveIndividual· Internal Medicine· Grayslake, IL
Internal Medicine (DO) in Grayslake, Illinois, trained at Liberty Univ College of Osteopathic Medicine (class of 2022). Part D covered 95 prescriptions written in 2024, 91% of them generic. Actelion Pharmaceuticals US, Inc. was the largest of 4 companies reporting payments in 2025, $103.35 in all, mostly food and beverage.
Overview
| NPI | 1215671391 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Apr 25, 2022 |
| Last updated in NPPES | Sep 2, 2026 |
| Certified by provider | Sep 2, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 036177083 | IL |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Internal Medicine (IL) |
|---|
Part D prescriptions in 2024
| Prescriptions (claims) | 95 · 125 30-day fills |
|---|---|
| Patients | 38 |
| Total drug cost | $5,499 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | Liberty Univ College of Osteopathic Medicine |
|---|---|
| Graduation year | 2022 |
| Medicare specialty | Internal Medicine |
Medical group
- Northwestern Medical Faculty FoundationChicago, IL · 4,503 clinicians
Hospital affiliations
- Northwestern Lake Forest HospitalLake Forest, IL
- Northwestern Memorial HospitalChicago, IL
Industry payments (Open Payments)
- 2025$103.35 · 4 payments from 4 companies
- 2024$301.67 · 11 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Actelion Pharmaceuticals US, Inc. | $34.20 | 1 |
| Ucb, Inc. | $28.51 | 1 |
| Janssen Biotech, Inc. | $21.43 | 1 |
| Pfizer Inc. | $19.21 | 1 |
What the 2025 payments were for
- Food and Beverage$103.35 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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