NPI 1689867541
Syed Mohiuddin Ahmed, MD
Internal Medicine, Medical Oncology · Oak Brook, IL
Active in the CMS NPI RegistryNot on the OIG exclusion listchecked Oct 15, 2026, 12:47 pm EDT
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Syed Mohiuddin Ahmed, MD is a health care provider (Internal Medicine, Medical Oncology) in Oak Brook, Illinois with National Provider Identifier (NPI) 1689867541. The NPI was issued on Aug 23, 2007 and the registry record was last updated on Dec 6, 2023. The registry lists a license in Illinois.
Registry record
- NPI
- 1689867541
- Type
- Individual (NPI-1)
- Primary specialty
- Internal Medicine, Medical Oncology 207RX0202X
- Practice location
- 1001 Commerce Dr Ste 700
Oak Brook, IL 60523-8865 - Phone
- (331) 732-4490
- NPI issued
- Aug 23, 2007
- Registry record updated
- Dec 6, 2023
Specialties and licenses
| Specialty | Taxonomy code | License state | License |
|---|---|---|---|
| Internal Medicine, Medical Oncology Primary | 207RX0202X | Illinois | 036-113652 |
Confirm license status and discipline with the state board (links in NPI Lookup).
Source: CMS National Plan and Provider Enumeration System (NPPES) and the HHS-OIG List of Excluded Individuals/Entities (list of Oct 9, 2026). Is this your record? Update it in NPPES or email info@2minutemedicine.com to have it hidden here.