Ali Ayub Khan, MD
NPI 1144843244ActiveIndividual· Hospitalist· Columbia, MO
Hospitalist (MD) in Columbia, Missouri, trained at University of Oklahoma College of Medicine (class of 2021). In 2024 Medicare paid $12,758 for 58 patients, and Part D covered 96 of their prescriptions, 83% of them generic. Calliditas Therapeutics US Inc. reported $123.01 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1144843244 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | May 22, 2020 |
| Last updated in NPPES | Jul 1, 2026 |
| Certified by provider | Jul 1, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Hospitalist Primary | 208M00000X | 2024019588 | MO |
| Internal Medicine | 207R00000X | 2024019588 | MO |
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 - Hospitalist (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 58 |
|---|---|
| Services billed | 167 across 8 procedure codes |
| Paid by Medicare | $12,758 |
Part D prescriptions in 2024
| Prescriptions (claims) | 96 · 111 30-day fills |
|---|---|
| Patients | 32 |
| Total drug cost | $14,742 |
| Generic share | 83% of claims |
Education and affiliations
| Medical school | University of Oklahoma College of Medicine |
|---|---|
| Graduation year | 2021 |
| Medicare specialty | Hospitalist |
| Secondary specialties | Internal Medicine |
Medical group
- Washington UniversitySaint Louis, MO · 3,029 clinicians
Hospital affiliation
- Barnes Jewish HospitalSaint Louis, MO
Industry payments (Open Payments)
- 2025$123.01 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Calliditas Therapeutics US Inc. | $123.01 | 1 |
What the 2025 payments were for
- Food and Beverage$123.01 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 88 hospitalists in Columbia · All hospitalists in Missouri