VIVEK CHERIAN MD
NPI 1811333735
Hospitalist in Oak Park, IL
About Vivek Cherian Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
VIVEK CHERIAN MD (NPI 1811333735) is an individual hospitalist provider in Oak Park, Illinois, licensed in Illinois (036153124) and active in the NPI registry since May 2013. He is enrolled in Medicare PECOS, is affiliated with Alexian Brothers Medical Center 1, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 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
Vivek Cherian 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 Reassignments
6Medicare enrollment records show Vivek Cherian reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Oak Brook, IL 60523
- Reassigned Medicare billing, Illinois enrollment
- Medicare enrollment name: Rush University Medical Group
- 2,169 clinicians in this Medicare group
Chicago, IL 60612
- Reassigned Medicare billing, Illinois enrollment
- 548 clinicians in this Medicare group
Evanston, IL 60202
- Reassigned Medicare billing, Illinois enrollment
- 87 clinicians in this Medicare group
Evanston, IL 60201
- Reassigned Medicare billing, Illinois enrollment
- 4,841 clinicians in this Medicare group
Washington, DC 20036
- Reassigned Medicare billing, Maryland enrollment
- 2,602 clinicians in this Medicare group
Towson, MD 21204
- Reassigned Medicare billing, Maryland enrollment
- 501 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 2
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Alexian Brothers Medical Center 1
Acute Care Hospitals · Elk Grove Village, ILSt Alexius Medical Center
Acute Care Hospitals · Hoffman Estates, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60304 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
OAK PARK, IL 60304
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 Vivek Cherian's NPI number?
The NPI number for Vivek Cherian is 1811333735. It was assigned to this individual provider in the NPPES registry on May 19, 2013.
Where is Vivek Cherian located?
Vivek Cherian practices at 520 S Maple Ave, Oak Park, IL 60304. The listed phone number is (708) 383-9300.
What is Vivek Cherian's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Vivek Cherian enrolled in Medicare?
Yes. Vivek Cherian 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 Vivek Cherian's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Vivek Cherian reassigns Medicare benefits to 6 organizations: Rush University Medical Center (Oak Brook, IL), Rush Medical Group (Chicago, IL), Cook Physician Services, P.C. (Evanston, IL), Endeavor Health Medical Group (Evanston, IL), Medstar Medical Group II LLC (Washington, DC) and 1 more organization, listed in the Medicare section above. 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 Vivek Cherian's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Vivek Cherian affiliated with any hospitals?
According to CMS data, Vivek Cherian is affiliated with Alexian Brothers Medical Center 1 and St Alexius Medical Center.
When was this NPI record last updated?
The NPPES record for Vivek Cherian was last updated on June 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Vivek Cherian, MD · NPI 1811333735
Hospitalist physician in Oak Park, Illinois. Individual provider, active in the CMS NPPES registry since May 19, 2013.
## Identity
- **NPI:** 1811333735 (Entity type: Individual)
- **Enumerated:** May 19, 2013
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** 036153124 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 520 S MAPLE AVE, Oak Park, IL 60304-1022
- **Phone:** (708) 383-9300
## 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:** 6 organizations under Medicare reassignment (form CMS-855R): Rush University Medical Center (NPI 1801375696, Oak Brook, IL); Rush Medical Group (NPI 1467312850, Chicago, IL); Cook Physician Services, P.C. (NPI 1487416376, Evanston, IL); Endeavor Health Medical Group (NPI 1497701882, Evanston, IL); Medstar Medical Group II LLC (NPI 1376887844, Washington, DC); and 1 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2013
## Record status
- **NPPES last updated:** June 22, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1811333735) · Data from the CMS NPPES public registry.