Mary J. Chiasson, D.O.
NPI 1235133265ActiveIndividual· Psychiatry & Neurology, Neurology· Bloomington, MN
Psychiatry & Neurology, Neurology (D.O.) in Bloomington, Minnesota, licensed in MN, with an NPI issued in June 2005. Their prescriptions cost Medicare Part D more than their services did: $566,335 for 2,286 claims, against $74,303 paid for services in 2024.
Overview
| NPI | 1235133265 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | No |
| NPI issued | Jun 8, 2005 |
| Last updated in NPPES | Aug 26, 2024 |
| Certified by provider | Aug 26, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Neurology Primary | 2084N0400X | 40247 | MN |
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) | Not in the public enrollment file of Oct 1, 2026 |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 273 |
|---|---|
| Services billed | 6,179 across 22 procedure codes |
| Paid by Medicare | $74,303 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,286 · 3,370 30-day fills |
|---|---|
| Patients | 269 |
| Total drug cost | $566,335 |
| Generic share | 79% of claims |
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Psychiatry & Neurology, Neurology providers in Bloomington
- 1215964499
- 1164403994
- 1033113063
- 1982608535
- 1598769523
- 1346266574
- 1588668511
- 1194980045
- 1538164363
- 1144422544
- 1952533077
- 1295911238
All Psychiatry & Neurology, Neurology providers in Minnesota →