Maroun M. Tawk, MD
NPI 1255300927ActiveIndividual· Internal Medicine, Pulmonary Disease· Oklahoma City, OK
Internal Medicine, Pulmonary Disease (MD) with Mercy Clinic Oklahoma Communities, practicing in Oklahoma City, Oklahoma. Their prescriptions cost Medicare Part D more than their services did: $650,609 for 1,664 claims, against $94,260 paid for services in 2024. Insmed, Inc. was the largest of 26 companies reporting payments in 2025, $2,643 in all, mostly food and beverage. Lists Integris Baptist Medical Center, Inc and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1255300927 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 15, 2006 |
| Last updated in NPPES | Jul 24, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Pulmonary Disease Primary | 207RP1001X | 21052 | OK |
| Internal Medicine, Critical Care Medicine | 207RC0200X | 21052 | OK |
| Internal Medicine, Sleep Medicine | 207RS0012X | 21052 | 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 - Pulmonary Disease (OK) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 742 |
|---|---|
| Services billed | 1,301 across 30 procedure codes |
| Paid by Medicare | $94,260 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,664 · 2,257 30-day fills |
|---|---|
| Patients | 275 |
| Total drug cost | $650,609 |
| Generic share | 69% of claims |
Education and affiliations
| Graduation year | 1996 |
|---|---|
| Medicare specialty | Pulmonary Disease |
| Secondary specialties | Critical Care (Intensivists) |
| Telehealth | Offers telehealth |
Medical group
- Mercy Clinic Oklahoma CommunitiesOklahoma City, OK · 649 clinicians
Hospital affiliations
- Integris Baptist Medical Center, IncOklahoma City, OK
- Mercy Hospital Logan CountyGuthrie, OK
- Mercy Hospital Oklahoma City, IncOklahoma City, OK
- O U Medical CenterOklahoma City, OK
- Oklahoma Heart Hospital, LLCOklahoma City, OK
Industry payments (Open Payments)
- 2025$2,643 · 137 payments from 26 companies
- 2024$2,480 · 123 payments from 23 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Insmed, Inc. | $484.77 | 23 |
| Glaxosmithkline, LLC. | $295.64 | 24 |
| Inspire Medical Systems, Inc. | $261.39 | 8 |
| Astrazeneca Pharmaceuticals LP | $183.90 | 15 |
| Regeneron Healthcare Solutions, Inc. | $165.17 | 10 |
What the 2025 payments were for
- Food and Beverage$2,643 · 137 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 110 pulmonologists in Oklahoma City · All pulmonologists in Oklahoma