Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mrs. Kristina Naseer, M.D.
Pain Medicine (Anesthesiology) Physician in O Fallon, IL · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1811188949
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Registry record
Taxonomy & licenses
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 000000530722 | Other | IN | ANTHEM BCBS |
| 01063556A | Other | IL | BCBS OF ILLINOIS |
| 200095110A | Medicaid | IN | - |
| 01063556A | Other | IN | LICENSE NUMBER |
| P00421579 | Other | GA | RAILROAD MEDICARE |
| 5761568 | Other | IN | AETNA |
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.
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Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-01-06.