Muhammad Ishaq, MD
NPI 1457520884ActiveIndividual· Psychiatry & Neurology, Psychiatry· Norman, OK
Psychiatry & Neurology, Psychiatry (MD) with Norman Regional Providers Specialty Care and 2 other groups, practicing in Norman, Oklahoma. Their prescriptions cost Medicare Part D more than their services did: $63,554 for 1,277 claims, against $27,795 paid for services in 2024. Glaxosmithkline, LLC. reported $31.97 in payments in 2025, mostly food and beverage. Lists Norman Regional as a hospital affiliation.
Overview
| NPI | 1457520884 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Feb 29, 2008 |
| Last updated in NPPES | Jul 6, 2026 |
| Certified by provider | Jul 6, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Psychiatry Primary | 2084P0800X | 25715 | OK |
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 (OK) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 85 |
|---|---|
| Services billed | 372 across 11 procedure codes |
| Paid by Medicare | $27,795 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,277 · 1,572 30-day fills |
|---|---|
| Patients | 72 |
| Total drug cost | $63,554 |
| Generic share | 97% of claims |
Education and affiliations
| Graduation year | 1995 |
|---|---|
| Medicare specialty | Psychiatry |
Medical groups
- Norman Regional Providers Specialty CareNorman, OK · 142 clinicians
- State of OklahomaNorman, OK · 97 clinicians
- Farhan Jawed, M.D., PLLCNorman, OK · 3 clinicians
Hospital affiliation
- Norman RegionalNorman, OK
Industry payments (Open Payments)
- 2025$31.97 · 2 payments from 1 company
- 2024$510.07 · 4 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Glaxosmithkline, LLC. | $31.97 | 2 |
What the 2025 payments were for
- Food and Beverage$31.97 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 95 psychiatrists in Norman · All psychiatrists in Oklahoma