DR. SIYUAN CHRISTOPHER LIU MD/PHD
NPI 1164981247
Psychiatry & Neurology - Neurocritical Care in Park Ridge, IL
About Dr. Siyuan Christopher Liu Md/phd NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. SIYUAN CHRISTOPHER LIU MD/PHD (NPI 1164981247) is an individual neurocritical care provider in Park Ridge, Illinois, licensed in Illinois (036-161471) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS, is affiliated with Advocate Sherman Hospital, and maintains a secondary practice location in Chicago.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Accepted Insurance
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. Siyuan Christopher Liu Md/phd 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 Reassignment
Medicare enrollment records show Siyuan Liu reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Park Ridge, IL 60068
- Reassigned Medicare billing, Illinois enrollment
- Medicare enrollment name: Advocate Health And Hospitals Corporation
- 4,870 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.
Advocate Sherman Hospital
Acute Care Hospitals · Elgin, ILAdvocate Lutheran General Hospital
Acute Care Hospitals · Park Ridge, 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.
PARK RIDGE, IL 60068
PARK RIDGE, IL 60068
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 Siyuan Liu's NPI number?
The NPI number for Siyuan Liu is 1164981247. It was assigned to this individual provider in the NPPES registry on March 18, 2019.
Where is Siyuan Liu located?
Siyuan Liu practices at 1775 Dempster St, Park Ridge, IL 60068. The listed phone number is (708) 283-5500.
What is Siyuan Liu's specialty?
The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Neurocritical Care, with taxonomy code 2084A2900X.
Is Siyuan Liu enrolled in Medicare?
Yes. Siyuan Liu 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 organization bills Medicare for Siyuan Liu's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Siyuan Liu reassigns Medicare benefits to Lutheran General Hospital (Park Ridge, IL). The 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 Siyuan Liu's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Siyuan Liu accept?
Health plans from Ambetter Health and Oscar Health list Siyuan Liu as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Siyuan Liu affiliated with any hospitals?
According to CMS data, Siyuan Liu is affiliated with Advocate Sherman Hospital and Advocate Lutheran General Hospital.
When was this NPI record last updated?
The NPPES record for Siyuan Liu was last updated on October 21, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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. Siyuan Christopher Liu, MD/PHD · NPI 1164981247
Neurocritical Care physician in Park Ridge, Illinois. Individual provider, active in the CMS NPPES registry since March 18, 2019.
## Identity
- **NPI:** 1164981247 (Entity type: Individual)
- **Enumerated:** March 18, 2019
- **Primary specialty:** Psychiatry & Neurology - Neurocritical Care · taxonomy 2084A2900X
- **State license:** 036-161471 (Illinois)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1775 DEMPSTER ST, Park Ridge, IL 60068-1143
- **Phone:** (708) 283-5500
## 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:** Lutheran General Hospital (NPI 1801809306, Park Ridge, IL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Illinois College Of Med, class of 2019
## Record status
- **NPPES last updated:** October 21, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1164981247) · Data from the CMS NPPES public registry.