CHRISTINE S TSAI M.D.
NPI 1780909960
Hospitalist in Chicago, IL
About Christine S Tsai M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CHRISTINE S TSAI M.D. (NPI 1780909960) is an individual hospitalist provider in Chicago, Illinois, licensed in Illinois (036132400) and active in the NPI registry since March 2010. She is enrolled in Medicare PECOS, is affiliated with Rush University Medical Center, and is a graduate of Columbia University College Of Physicians And Surgeons (2009).
NPPES Registry Identity
Specialties & Licenses 2
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
Christine S Tsai M.d. 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 Christine Tsai reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Chicago, IL 60612
- Reassigned Medicare billing, Illinois enrollment
- Medicare enrollment name: Rush University Medical Group
- 2,169 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.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Rush University Medical Center
Acute Care Hospitals · Chicago, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60612 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Christine Tsai's NPI number?
The NPI number for Christine Tsai is 1780909960. It was assigned to this individual provider in the NPPES registry on March 31, 2010.
Where is Christine Tsai located?
Christine Tsai practices at 1700 W Van Buren St Suite 500, Chicago, IL 60612. The listed phone number is (312) 563-2875.
What is Christine Tsai's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Christine Tsai enrolled in Medicare?
Yes. Christine Tsai 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 Christine Tsai's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Christine Tsai reassigns Medicare benefits to Rush University Medical Center (Chicago, 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 Christine Tsai's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Christine Tsai affiliated with any hospitals?
According to CMS data, Christine Tsai is affiliated with Rush University Medical Center.
When was this NPI record last updated?
The NPPES record for Christine Tsai was last updated on May 25, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.
# Christine S Tsai, M.D. · NPI 1780909960
Hospitalist physician in Chicago, Illinois. Individual provider, active in the CMS NPPES registry since March 31, 2010.
## Identity
- **NPI:** 1780909960 (Entity type: Individual)
- **Enumerated:** March 31, 2010
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** 036132400 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 1700 W VAN BUREN ST, SUITE 500, Chicago, IL 60612-5500
- **Phone:** (312) 563-2875
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** Rush University Medical Center (NPI 1184269425, Chicago, IL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Columbia University College Of Physicians And Surgeons, class of 2009
## Record status
- **NPPES last updated:** May 25, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1780909960) · Data from the CMS NPPES public registry.