Imran Tahir
NPI 1194012229ActiveIndividual· Internal Medicine· Chicago, IL
Internal Medicine with Cherokee Nation and 2 other groups, practicing in Chicago, Illinois. Their prescriptions cost Medicare Part D more than their services did: $651,923 for 622 claims, against $164,138 paid for services in 2024. Amgen Inc. reported $18.48 in payments in 2025, mostly education. Lists Ascension St John Medical Center and 2 other hospitals as hospital affiliations.
Overview
| NPI | 1194012229 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Sole proprietor | No |
| NPI issued | Jul 10, 2011 |
| Last updated in NPPES | Jul 10, 2011 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 125050290 | IL |
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 - Nephrology (OK); Practitioner - Internal Medicine (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 475 |
|---|---|
| Services billed | 1,497 across 16 procedure codes |
| Paid by Medicare | $164,138 |
Part D prescriptions in 2024
| Prescriptions (claims) | 622 · 1,301 30-day fills |
|---|---|
| Patients | 175 |
| Total drug cost | $651,923 |
| Generic share | 75% of claims |
Education and affiliations
| Graduation year | 2009 |
|---|---|
| Medicare specialty | Internal Medicine |
| Secondary specialties | Nephrology |
| Telehealth | Offers telehealth |
Medical groups
- Cherokee NationTahlequah, OK · 449 clinicians
- Northeastern Health SystemTahlequah, OK · 103 clinicians
- Tahlequah Medical Group LLCTahlequah, OK · 16 clinicians
Hospital affiliations
- Ascension St John Medical CenterTulsa, OK
- Cherokee Nation W W Hastings Indian HospitalTahlequah, OK
- Northeastern Health SystemTahlequah, OK
Other facilities
- Davita Muskogee Community Dialysis CenterDialysis facility · Muskogee, OK
- Davita Stilwell Dialysis CenterDialysis facility · Stilwell, OK
Industry payments (Open Payments)
- 2025$18.48 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $18.48 | 1 |
What the 2025 payments were for
- Education$18.48 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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