Mahmood Ghiyath Alnahass, MD
NPI 1497756720ActiveIndividual· Psychiatry & Neurology, Neurology· Valparaiso, IN
Psychiatry & Neurology, Neurology (MD) in Valparaiso, Indiana, licensed in IN, with an NPI issued in August 2005. Their prescriptions cost Medicare Part D more than their services did: $1,785,326 for 6,231 claims, against $144,193 paid for services in 2024. Abbvie Inc. was the largest of 30 companies reporting payments in 2025, $3,815 in all, mostly food and beverage. Lists Franciscan Health Crown Point and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1497756720 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Aug 9, 2005 |
| Last updated in NPPES | Jul 15, 2026 |
| Certified by provider | Jul 15, 2026 |
| Reactivated | Apr 12, 2006 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Neurology Primary | 2084N0400X | 01055878A | IN |
| Psychiatry & Neurology, Clinical Neurophysiology | 2084N0600X | 01055878A | IN |
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) | Enrolled Practitioner - Neurology (IN) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 636 |
|---|---|
| Services billed | 1,537 across 24 procedure codes |
| Paid by Medicare | $144,193 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,231 · 12,109 30-day fills |
|---|---|
| Patients | 769 |
| Total drug cost | $1,785,326 |
| Generic share | 87% of claims |
Education and affiliations
| Graduation year | 1989 |
|---|---|
| Medicare specialty | Neurology |
Hospital affiliations
- Franciscan Health Crown PointCrown Point, IN
- Franciscan Health Michigan CityMichigan City, IN
- Methodist Hospitals IncGary, IN
- Northwest Health - PorterValparaiso, IN
- St Mary Medical Center IncHobart, IN
Other facilities
- Powers Health Rehabilitation CenterInpatient rehabilitation facility · Crown Point, IN
Industry payments (Open Payments)
- 2025$3,815 · 148 payments from 30 companies
- 2024$3,568 · 172 payments from 34 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $439.80 | 17 |
| Axsome Therapeutics, Inc. | $353.53 | 9 |
| Novartis Pharmaceuticals Corporation | $294.47 | 15 |
| Pfizer Inc. | $262.38 | 13 |
| Emd Serono, Inc. | $232.61 | 6 |
What the 2025 payments were for
- Food and Beverage$3,815 · 148 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All Psychiatry & Neurology, Neurology providers in Indiana →