ANDREW MIN JUN CHOI MD
NPI 1043770175
Hospitalist in Lake Forest, IL
About Andrew Min Jun Choi Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ANDREW MIN JUN CHOI MD (NPI 1043770175) is an individual hospitalist provider in Lake Forest, Illinois, licensed in Illinois (036159525) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS, is affiliated with Northshore University Healthsystem - Evanston Hospital, and is a graduate of Loyola University Of Chicago, Stritch School Of Medicine (2019).
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
Andrew Min Jun Choi Md 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 Andrew Choi reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Carol Stream, IL 60122
- Reassigned Medicare billing, Illinois enrollment
- 4,817 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 5
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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Northshore University Healthsystem - Evanston Hospital
Acute Care Hospitals · Evanston, ILNorthwestern Medicine Mchenry
Acute Care Hospitals · Mchenry, ILNorthwestern Lake Forest Hospital
Acute Care Hospitals · Lake Forest, ILNorthwestern Memorial Hospital
Acute Care Hospitals · Chicago, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60045 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
LAKE FOREST, IL 60045
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 Andrew Choi's NPI number?
The NPI number for Andrew Choi is 1043770175. It was assigned to this individual provider in the NPPES registry on March 24, 2019.
Where is Andrew Choi located?
Andrew Choi practices at 1000 N Westmoreland Rd, Lake Forest, IL 60045. The listed phone number is (847) 234-5600.
What is Andrew Choi's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Andrew Choi enrolled in Medicare?
Yes. Andrew Choi 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 Andrew Choi's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Andrew Choi reassigns Medicare benefits to Northwestern Medical Faculty Foundation (Carol Stream, 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 Andrew Choi's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Andrew Choi affiliated with any hospitals?
According to CMS data, Andrew Choi is affiliated with Northshore University Healthsystem - Evanston Hospital, Northwestern Medicine Mchenry, Northwestern Lake Forest Hospital and Northwestern Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Andrew Choi was last updated on August 16, 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.
# Andrew Min Jun Choi, MD · NPI 1043770175
Hospitalist physician in Lake Forest, Illinois. Individual provider, active in the CMS NPPES registry since March 24, 2019.
## Identity
- **NPI:** 1043770175 (Entity type: Individual)
- **Enumerated:** March 24, 2019
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** 036159525 (Illinois)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1000 N WESTMORELAND RD, Lake Forest, IL 60045-1658
- **Phone:** (847) 234-5600
## 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:** Northwestern Medical Faculty Foundation (NPI 1346235314, Carol Stream, IL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Loyola University Of Chicago, Stritch School Of Medicine, class of 2019
## Record status
- **NPPES last updated:** August 16, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1043770175) · Data from the CMS NPPES public registry.