Sigmund Weitzman MD
About this NPIWhat this record shows.
NPI 1144249764 is registered to Sigmund Weitzman MD, a Medical Oncology Physician practising at 676 N Saint Clair St, Suite 850 in Chicago, Illinois. Medical Oncology Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Sigmund Weitzman MD has been enumerated in the National Provider Identifier (NPI) registry since 2006.
Your brand here.
Insurance & acceptsHow to confirm coverage.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Sigmund Weitzman MD accepts. To confirm in-network status with your specific health plan, contact Sigmund Weitzman MD directly at (312) 695-0990.
Frequently asked
Yes. NPI 1144249764 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Medical Oncology Physician is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (312) 695-0990.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. Sigmund Weitzman MD is a Type-1 individual NPI.