Mark J. Allen, M.D.
NPI 1457465163ActiveIndividual· Internal Medicine, Gastroenterology· Kansas City, MO
Internal Medicine, Gastroenterology (M.D.) in Kansas City, Missouri, licensed in MO, with an NPI issued in August 2006. In 2024 Medicare paid $850,686 for 566 patients, and Part D covered 1,283 of their prescriptions, 80% of them generic. Abbvie Inc. was the largest of 6 companies reporting payments in 2025, $356.58 in all, mostly food and beverage.
Overview
| NPI | 1457465163 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Aug 18, 2006 |
| Last updated in NPPES | Nov 2, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | R2A11 | MO |
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) | Not in the public enrollment file of Oct 1, 2026 |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 566 |
|---|---|
| Services billed | 57,793 across 52 procedure codes |
| Paid by Medicare | $850,686 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,283 · 2,100 30-day fills |
|---|---|
| Patients | 636 |
| Total drug cost | $743,251 |
| Generic share | 80% of claims |
Industry payments (Open Payments)
- 2025$356.58 · 18 payments from 6 companies
- 2024$1,485 · 75 payments from 15 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $201.54 | 11 |
| Celltrion USA Inc. | $51.79 | 3 |
| Ardelyx, Inc. | $31.33 | 1 |
| Janssen Biotech, Inc. | $28.96 | 1 |
| Qol Medical, LLC | $24.11 | 1 |
What the 2025 payments were for
- Food and Beverage$356.58 · 18 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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