DR. LOUIS TSICHLIS DO
NPI 1366029894
Anesthesiology in Hinsdale, IL
About Dr. Louis Tsichlis Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. LOUIS TSICHLIS DO (NPI 1366029894) is an individual anesthesiology provider in Hinsdale, Illinois, licensed in Illinois (036176824) and active in the NPI registry since March 2021. He is enrolled in Medicare PECOS, is affiliated with Adventist La Grange Memorial Hospital, and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 3
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Louis Tsichlis Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Louis Tsichlis reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Oak Park, IL 60302
- Reassigned Medicare billing, Illinois enrollment
- 826 clinicians in this Medicare group
Chicago, IL 60657
- Reassigned Medicare billing, Illinois enrollment
- 385 clinicians in this Medicare group
Arlington, TX 76006
- Reassigned Medicare billing, Illinois enrollment
- 735 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Adventist La Grange Memorial Hospital
Acute Care Hospitals · La Grange, ILAdventist Hinsdale Hospital
Acute Care Hospitals · Hinsdale, ILOther Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
HINSDALE, IL 60521
HINSDALE, IL 60521
HINSDALE, IL 60521
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Louis Tsichlis's NPI number?
The NPI number for Louis Tsichlis is 1366029894. It was assigned to this individual provider in the NPPES registry on March 29, 2021.
Where is Louis Tsichlis located?
Louis Tsichlis practices at 120 N Oak St, Hinsdale, IL 60521. The listed phone number is (630) 856-9000.
What is Louis Tsichlis's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Louis Tsichlis enrolled in Medicare?
Yes. Louis Tsichlis is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Louis Tsichlis's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Louis Tsichlis reassigns Medicare benefits to 3 organizations: North American Partners In Anesthesia (illinois), LLC (Oak Park, IL), Midwest Anesthesia Partners, LLC (Chicago, IL) and Northstar Anesthesia Of Illinois, LLC (Arlington, TX). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Louis Tsichlis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Louis Tsichlis affiliated with any hospitals?
According to CMS data, Louis Tsichlis is affiliated with Adventist La Grange Memorial Hospital and Adventist Hinsdale Hospital.
When was this NPI record last updated?
The NPPES record for Louis Tsichlis was last updated on December 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Louis Tsichlis, DO · NPI 1366029894
Anesthesiology physician in Hinsdale, Illinois. Individual provider, active in the CMS NPPES registry since March 29, 2021.
## Identity
- **NPI:** 1366029894 (Entity type: Individual)
- **Enumerated:** March 29, 2021
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** 036176824 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 120 N OAK ST, Hinsdale, IL 60521-3829
- **Phone:** (630) 856-9000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): North American Partners In Anesthesia (illinois), LLC (NPI 1699032524, Oak Park, IL); Midwest Anesthesia Partners, LLC (NPI 1255380184, Chicago, IL); Northstar Anesthesia Of Illinois, LLC (NPI 1962822395, Arlington, TX) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Midwestern University, Chicago College Of Osteopathic Med, class of 2021
## Record status
- **NPPES last updated:** December 11, 2025
- **Other identifiers:** Medicaid 1366029894 (SC)
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Source: [NPI Profile](https://npiprofile.com/npi/1366029894) · Data from the CMS NPPES public registry.