Dennis Richard Brightwell, M.D.
NPI 1841288420ActiveIndividual· Psychiatry & Neurology, Psychiatry· Crystal Lake, IL
Psychiatry & Neurology, Psychiatry (M.D.) in Crystal Lake, Illinois, licensed in IL and WI, with an NPI issued in October 2005. Their prescriptions cost Medicare Part D more than their services did: $46,998 for 598 claims, against $21,962 paid for services in 2024. Otsuka America Pharmaceutical, Inc. was the largest of 7 companies reporting payments in 2025, $258.44 in all, mostly food and beverage.
Overview
| NPI | 1841288420 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Oct 8, 2005 |
| Last updated in NPPES | Jan 15, 2016 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Psychiatry Primary | 2084P0800X | 036103977 | IL |
| Psychiatry & Neurology, Psychiatry | 2084P0800X | 56574-20 | WI |
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 - Psychiatry (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 35 |
|---|---|
| Services billed | 268 across 9 procedure codes |
| Paid by Medicare | $21,962 |
Part D prescriptions in 2024
| Prescriptions (claims) | 598 · 770 30-day fills |
|---|---|
| Patients | 51 |
| Total drug cost | $46,998 |
| Generic share | 95% of claims |
Industry payments (Open Payments)
- 2025$258.44 · 13 payments from 7 companies
- 2024$344.60 · 18 payments from 8 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Otsuka America Pharmaceutical, Inc. | $61.43 | 3 |
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $43.28 | 2 |
| Neurocrine Biosciences, Inc. | $40.43 | 2 |
| Axsome Therapeutics, Inc. | $36.76 | 2 |
| Abbvie Inc. | $35.88 | 2 |
What the 2025 payments were for
- Food and Beverage$258.44 · 13 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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