Mark L. Chalem, MD
NPI 1083830848ActiveIndividual· Psychiatry & Neurology, Psychiatry· Spokane, WA
Psychiatry & Neurology, Psychiatry (MD) in Spokane, Washington, trained at Warren Alpert Medical School of Brown University (class of 1976). Their prescriptions cost Medicare Part D more than their services did: $942,151 for 4,576 claims, against $90,369 paid for services in 2024.
Overview
| NPI | 1083830848 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Apr 18, 2007 |
| Last updated in NPPES | Nov 5, 2021 |
| Certified by provider | Nov 5, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Psychiatry Primary | 2084P0800X | MD00017775 | WA |
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 (WA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 112 |
|---|---|
| Services billed | 1,273 across 11 procedure codes |
| Paid by Medicare | $90,369 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,576 · 6,436 30-day fills |
|---|---|
| Patients | 201 |
| Total drug cost | $942,151 |
| Generic share | 92% of claims |
Education and affiliations
| Medical school | Warren Alpert Medical School of Brown University |
|---|---|
| Graduation year | 1976 |
| Medicare specialty | Psychiatry |
| Telehealth | Offers telehealth |
Medical group
- Tms Solutions IncFort Collins, CO · 8 clinicians
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 122 psychiatrists in Spokane · All psychiatrists in Washington