Naser M. Khan, MD
NPI 1437270253ActiveIndividual· Internal Medicine, Gastroenterology· Hoffman Estates, IL
Internal Medicine, Gastroenterology (MD) with Osf Multi-Specialty Group and 3 other groups, practicing in Hoffman Estates, Illinois. Their prescriptions cost Medicare Part D more than their services did: $164,381 for 523 claims, against $53,693 paid for services in 2024. Celltrion USA Inc. was the largest of 5 companies reporting payments in 2025, $422.07 in all, mostly food and beverage. Lists Carle Foundation Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1437270253 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 2, 2007 |
| Last updated in NPPES | Oct 10, 2017 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Gastroenterology Primary | 207RG0100X | 036117146 | IL |
| Internal Medicine | 207R00000X | 036117146 | IL |
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) | Enrolled Practitioner - Gastroenterology (IL); Practitioner - Gastroenterology (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 316 |
|---|---|
| Services billed | 517 across 46 procedure codes |
| Paid by Medicare | $53,693 |
Part D prescriptions in 2024
| Prescriptions (claims) | 523 · 785 30-day fills |
|---|---|
| Patients | 363 |
| Total drug cost | $164,381 |
| Generic share | 70% of claims |
Education and affiliations
| Graduation year | 2003 |
|---|---|
| Medicare specialty | Gastroenterology |
Medical groups
- Osf Multi-Specialty GroupMorton, IL · 2,114 clinicians
- Carle Health Care IncorporatedUrbana, IL · 1,666 clinicians
- Mercy Health System CorporationJanesville, WI · 753 clinicians
- Rockford Health PhysiciansRockford, IL · 521 clinicians
Hospital affiliations
- Carle Foundation HospitalUrbana, IL
- Javon Bea HospitalRockford, IL
- Mercy Health System CorpJanesville, WI
- Mercy Walworth Hospital & Medical CenterLake Geneva, WI
- St Joseph Medical CenterBloomington, IL
Industry payments (Open Payments)
- 2025$422.07 · 5 payments from 5 companies
- 2024$1,977 · 12 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Celltrion USA Inc. | $123.09 | 1 |
| Abbvie Inc. | $104.08 | 1 |
| Capsovision, Inc. | $91.47 | 1 |
| Janssen Scientific Affairs, LLC | $67.28 | 1 |
| Janssen Biotech, Inc. | $36.15 | 1 |
What the 2025 payments were for
- Food and Beverage$422.07 · 5 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Gastroenterology providers in Hoffman Estates
- 1023106374
- 1831473784
- 1457332231
- 1538140082
- 1245202704
- 1497736276
- 1750677621
- 1003897786
- 1710011416
- 1013001924
All Internal Medicine, Gastroenterology providers in Illinois →