Arash Mohtashamian, M.D.
NPI 1912987215ActiveIndividual· Pathology, Anatomic Pathology & Clinical Pathology· Bethesda, MD
Pathology, Anatomic Pathology & Clinical Pathology (M.D.) in Bethesda, Maryland, trained at Medical College of Wisconsin (class of 2000). Medicare paid $55,507 for services to 413 patients in 2024. Roche Molecular Systems, Inc. reported $49,467 in payments in 2025, mostly speaking and faculty fees.
Overview
| NPI | 1912987215 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jan 20, 2006 |
| Last updated in NPPES | Jul 13, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Pathology, Anatomic Pathology & Clinical Pathology Primary | 207ZP0102X | 01055317A | IN |
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 - Pathology (NV) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 413 |
|---|---|
| Services billed | 1,962 across 34 procedure codes |
| Paid by Medicare | $55,507 |
Education and affiliations
| Medical school | Medical College of Wisconsin |
|---|---|
| Graduation year | 2000 |
| Medicare specialty | Pathology |
Medical group
- Sierra Pathology Associates, IncReno, NV · 10 clinicians
Hospital affiliations
Industry payments (Open Payments)
- 2025$49,467 · 27 payments from 1 company
- 2024$148,861 · 51 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Roche Molecular Systems, Inc. | $49,467 | 27 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$49,467 · 27 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 51 pathologists in Bethesda · All pathologists in Maryland