MOHAMED IHTESHAM SHAJI MD
NPI 1194248914
Internal Medicine - Adolescent Medicine in Chicago, IL
About Mohamed Ihtesham Shaji Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MOHAMED IHTESHAM SHAJI MD (NPI 1194248914) is an individual adolescent medicine provider in Chicago, Illinois, licensed in Illinois (125.069826) and active in the NPI registry since July 2017. He is enrolled in Medicare PECOS, is affiliated with Ascension Columbia St Mary's Hospital Milwaukee, and is a graduate of Other (2011).
NPPES Registry Identity
Specialties & Licenses
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
Mohamed Ihtesham Shaji 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
3Medicare enrollment records show Mohamed Shaji reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Milwaukee, WI 53211
- Reassigned Medicare billing, Wisconsin enrollment
- Medicare enrollment name: Columbia St Marys Hospital Milwaukee Inc
- 856 clinicians in this Medicare group
Milwaukee, WI 53211
- Reassigned Medicare billing, Wisconsin enrollment
- 1,343 clinicians in this Medicare group
Chilton, WI 53014
- Reassigned Medicare billing, Wisconsin enrollment
- 91 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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Ascension Columbia St Mary's Hospital Milwaukee
Acute Care Hospitals · Milwaukee, WIAscension SE Wisconsin Hospital
Acute Care Hospitals · Milwaukee, WIMedicare 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.
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.
CHICAGO, IL 60640
CHICAGO, IL 60640
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 Mohamed Shaji's NPI number?
The NPI number for Mohamed Shaji is 1194248914. It was assigned to this individual provider in the NPPES registry on July 24, 2017.
Where is Mohamed Shaji located?
Mohamed Shaji practices at 4646 N Marine Dr, Chicago, IL 60640. The listed phone number is (773) 564-7400.
What is Mohamed Shaji's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Adolescent Medicine, with taxonomy code 207RA0000X.
Is Mohamed Shaji enrolled in Medicare?
Yes. Mohamed Shaji 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 Mohamed Shaji's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Mohamed Shaji reassigns Medicare benefits to 3 organizations: Columbia St. Mary's Hospital Milwaukee, Inc (Milwaukee, WI), Ascension Medical Group-Southeast Wisconsin Inc (Milwaukee, WI) and Ascension Calumet Hospital, Inc (Chilton, WI). 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 Mohamed Shaji's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Mohamed Shaji accept?
Health plans from Anthem Blue Cross and Blue Shield list Mohamed Shaji 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 Mohamed Shaji affiliated with any hospitals?
According to CMS data, Mohamed Shaji is affiliated with Ascension Columbia St Mary's Hospital Milwaukee and Ascension SE Wisconsin Hospital.
When was this NPI record last updated?
The NPPES record for Mohamed Shaji was last updated on August 15, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.
# Mohamed Ihtesham Shaji, MD · NPI 1194248914
Adolescent Medicine physician in Chicago, Illinois. Individual provider, active in the CMS NPPES registry since July 24, 2017.
## Identity
- **NPI:** 1194248914 (Entity type: Individual)
- **Enumerated:** July 24, 2017
- **Primary specialty:** Internal Medicine - Adolescent Medicine · taxonomy 207RA0000X
- **State license:** 125.069826 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 4646 N MARINE DR, Chicago, IL 60640-5759
- **Phone:** (773) 564-7400
## 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): Columbia St. Mary's Hospital Milwaukee, Inc (NPI 1023064482, Milwaukee, WI); Ascension Medical Group-Southeast Wisconsin Inc (NPI 1194473066, Milwaukee, WI); Ascension Calumet Hospital, Inc (NPI 1376541748, Chilton, WI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2011
## Record status
- **NPPES last updated:** August 15, 2017
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Source: [NPI Profile](https://npiprofile.com/npi/1194248914) · Data from the CMS NPPES public registry.