Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Salim Chahin, MD
Neurology Physician in O Fallon, MO · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1255539789
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Registry record
Entity type Individual (Type 1)
Name Dr. Salim Chahin
Credential MD
Sex Male
Practice address 20 Progress Point Pkwy Ste 200, O Fallon, MO, 63368
Phone (636) 916-7060
Fax (636) 916-9421
Enumeration date Jul 5, 2007
Last updated in NPPES Apr 2, 2026
Taxonomy & licenses
2084N0400X Neurology Physician Allopathic & Osteopathic Physicians · License 2016035819 (MO) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 200038816 | Medicaid | MO | - |
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
Where does Salim Chahin practice?
The practice location on file with NPPES is in O Fallon, MO. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Salim Chahin?
The National Provider Identifier (NPI) for Salim Chahin is 1255539789, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-04-02.