Manar Shmais, MD
NPI 1003540394ActiveIndividual· Internal Medicine, Gastroenterology· Saint Louis, MO
Internal Medicine, Gastroenterology (MD) with Ssm Health Care Group and 1 other group, practicing in Saint Louis, Missouri. Their prescriptions cost Medicare Part D more than their services did: $1,831,413 for 356 claims, against $21,664 paid for services in 2024. Conmed Corporation was the largest of 3 companies reporting payments in 2025, $344.22 in all, mostly food and beverage. Lists Ssm Health Saint Louis University Hospital and 1 other hospital as hospital affiliations.
Overview
| NPI | 1003540394 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 12, 2022 |
| Last updated in NPPES | Nov 14, 2025 |
| Certified by provider | Nov 14, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 2023017628 | MO |
| Internal Medicine, Gastroenterology | 207RG0100X | 32359 | MN |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Gastroenterology (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 144 |
|---|---|
| Services billed | 248 across 24 procedure codes |
| Paid by Medicare | $21,664 |
Part D prescriptions in 2024
| Prescriptions (claims) | 356 · 512 30-day fills |
|---|---|
| Patients | 148 |
| Total drug cost | $1,831,413 |
| Generic share | 63% of claims |
Education and affiliations
| Graduation year | 2016 |
|---|---|
| Medicare specialty | Gastroenterology |
Medical groups
- Ssm Health Care GroupSaint Louis, MO · 940 clinicians
- Ssm Medical Group IncSaint Charles, MO · 568 clinicians
Hospital affiliations
- Ssm Health Saint Louis University HospitalSaint Louis, MO
- Ssm Health St Mary's Hospital - St LouisSaint Louis, MO
Industry payments (Open Payments)
- 2025$344.22 · 4 payments from 3 companies
- 2024$187.58 · 3 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Conmed Corporation | $139.15 | 2 |
| Janssen Biotech, Inc. | $106.65 | 1 |
| Novo Nordisk Inc | $98.42 | 1 |
What the 2025 payments were for
- Food and Beverage$344.22 · 4 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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