Marissa Jane Versalle, DO
NPI 1669891107ActiveIndividual· Internal Medicine· Lake Forest, IL
Internal Medicine (DO) in Lake Forest, Illinois, trained at Lake Erie College of Osteopathic Medicine, Erie (class of 2014). 308 Medicare patients in 2024, $53,315 paid; nearly all of their 143 Part D prescriptions were generic (92%). 180 Medical, Inc. reported $23.66 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1669891107 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | DO |
| Sole proprietor | No |
| NPI issued | Apr 14, 2014 |
| Last updated in NPPES | Jan 12, 2026 |
| Certified by provider | Jan 12, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 036146901 | IL |
| Hospitalist | 208M00000X | 036.146901 | IL |
| Hospitalist | 208M00000X | 34.012714 | OH |
| Student in an Organized Health Care Education/Training Program | 390200000X | — | — |
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 - Hospitalist (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 308 |
|---|---|
| Services billed | 551 across 18 procedure codes |
| Paid by Medicare | $53,315 |
Part D prescriptions in 2024
| Prescriptions (claims) | 143 · 153 30-day fills |
|---|---|
| Patients | 67 |
| Total drug cost | $7,474 |
| Generic share | 92% of claims |
Education and affiliations
| Medical school | Lake Erie College of Osteopathic Medicine, Erie |
|---|---|
| Graduation year | 2014 |
| Medicare specialty | Hospitalist |
| Secondary specialties | Internal Medicine |
Medical groups
- Northwestern Medical Faculty FoundationChicago, IL · 4,503 clinicians
- Forward Focus Medical Care LLCNorthfield, IL · 9 clinicians
Hospital affiliations
- Northshore University Healthsystem - Evanston HospitalEvanston, IL
- Northwestern Lake Forest HospitalLake Forest, IL
- Northwestern Memorial HospitalChicago, IL
Industry payments (Open Payments)
- 2025$23.66 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| 180 Medical, Inc. | $23.66 | 1 |
What the 2025 payments were for
- Food and Beverage$23.66 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other internal medicine physicians in Lake Forest
- 1003890500
- 1336123884
- 1346602877
- 1477574945
- 1578547063
- 1780773994
- 1891781241
- 1669932737
- 1043324254
- 1184704595
- 1407915978
- 1619350410
All 34 internal medicine physicians in Lake Forest · All internal medicine physicians in Illinois