William H. Mollohan, D.O.
NPI 1720006919ActiveIndividual· Internal Medicine· Naperville, IL
Internal Medicine (D.O.) in Naperville, Illinois, trained at Oklahoma State University College of Osteopathic Medicine (class of 1985). In 2024 Medicare paid $427,075 for 132 patients, and Part D covered 923 of their prescriptions, 81% of them generic. Organogenesis Inc. reported $55.95 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1720006919 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Jul 17, 2006 |
| Last updated in NPPES | Jul 9, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | — | 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 - Internal Medicine (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 132 |
|---|---|
| Services billed | 959 across 34 procedure codes |
| Paid by Medicare | $427,075 |
Part D prescriptions in 2024
| Prescriptions (claims) | 923 · 1,559 30-day fills |
|---|---|
| Patients | 120 |
| Total drug cost | $85,950 |
| Generic share | 81% of claims |
Education and affiliations
| Medical school | Oklahoma State University College of Osteopathic Medicine |
|---|---|
| Graduation year | 1985 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Beyond Wound Care IncSchaumburg, IL · 10 clinicians
Other facilities
- Advance Care Home Health, IncHome health agency · Niles, IL
- Atrium Home Health Systems, IncHome health agency · Lincolnwood, IL
- Chicago Health, IncHome health agency · Park Ridge, IL
- Healthcare Plus CorporationHome health agency · Rolling Meadows, IL
- Lincoln Home Health Care, IncHome health agency · Rosemont, IL
Industry payments (Open Payments)
- 2025$55.95 · 2 payments from 1 company
- 2024$95.25 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Organogenesis Inc. | $55.95 | 2 |
What the 2025 payments were for
- Food and Beverage$55.95 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 114 internal medicine physicians in Naperville · All internal medicine physicians in Illinois