Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Shahid A Ansari, M.D.
Surgery Physician in Chicago, IL · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1558452474
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Registry record
Entity type Individual (Type 1)
Name Shahid A Ansari
Credential M.D.
Sex Male
Practice address 500 East 51st Street, Chicago, IL, 60615
Phone (312) 572-2664
Fax (312) 572-2681
Enumeration date Sep 27, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
What is the NPI number for Shahid Ansari?
The National Provider Identifier (NPI) for Shahid Ansari is 1558452474, a Type 1 (individual) record in the CMS NPPES registry.
Where does Shahid Ansari practice?
The practice location on file with NPPES is in Chicago, IL. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Cook County General Acute Care Hospital · Chicago, IL NPI 1487664561 Jonnelle Sweetner Internal Medicine Physician · Chicago, IL NPI 1598776049 Judith Schlaeger Midwife · Chicago, IL NPI 1609960996 Reneau Diallo Advanced Practice Midwife · Chicago, IL NPI 1578657862 Dana Beatty Advanced Practice Midwife · Chicago, IL NPI 1326135666 John H Stroger Hospital General Acute Care Hospital · Chicago, IL NPI 1003065863
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.