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Dr. Louis Tsichlis, DO

Anesthesiology Physician in Hinsdale, IL · enumerated 2021.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1366029894

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Registry record

Entity type Individual (Type 1)
Name Dr. Louis Tsichlis
Credential DO
Sex Male
Practice address 120 N Oak St, Hinsdale, IL, 60521
Phone (630) 856-9000
Enumeration date Mar 29, 2021
Last updated in NPPES Dec 11, 2025

Taxonomy & licenses

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License 036176824 (IL) Primary
390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary
DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier Type State Issuer
1366029894 Medicaid SC -

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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Frequently asked questions

What is the NPI number for Louis Tsichlis?
The National Provider Identifier (NPI) for Louis Tsichlis is 1366029894, a Type 1 (individual) record in the CMS NPPES registry.
Where does Louis Tsichlis practice?
The practice location on file with NPPES is in Hinsdale, IL. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-12-11.