ALIYA AHSAN DO
NPI 1063032415
Internal Medicine - Rheumatology in Oak Lawn, IL
About Aliya Ahsan Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALIYA AHSAN DO (NPI 1063032415) is an individual rheumatology provider in Oak Lawn, Illinois, licensed in Illinois (036164875) and active in the NPI registry since April 2020. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses 3
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Aliya Ahsan Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Aliya Ahsan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Oak Lawn, IL 60453
- Reassigned Medicare billing, Illinois enrollment
- Medicare enrollment name: Advocate Health And Hospitals Corporation
- 4,870 clinicians in this Medicare group
Evanston, IL 60201
- Reassigned Medicare billing, Illinois enrollment
- 4,841 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60453 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.
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.
OAK LAWN, IL 60453
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 Aliya Ahsan's NPI number?
The NPI number for Aliya Ahsan is 1063032415. It was assigned to this individual provider in the NPPES registry on April 25, 2020.
Where is Aliya Ahsan located?
Aliya Ahsan practices at 4220 W 95th St Ste 200, Oak Lawn, IL 60453. The listed phone number is (708) 398-0282.
What is Aliya Ahsan's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.
Is Aliya Ahsan enrolled in Medicare?
Yes. Aliya Ahsan is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Aliya Ahsan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Aliya Ahsan reassigns Medicare benefits to 2 organizations: Advocate Health & Hospitals Corporation (Oak Lawn, IL) and Endeavor Health Medical Group (Evanston, IL). 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 Aliya Ahsan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Aliya Ahsan accept?
Health plans from Oscar Health list Aliya Ahsan 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.
When was this NPI record last updated?
The NPPES record for Aliya Ahsan was last updated on September 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 37 days 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.
# Aliya Ahsan, DO · NPI 1063032415
Rheumatology physician in Oak Lawn, Illinois. Individual provider, active in the CMS NPPES registry since April 25, 2020.
## Identity
- **NPI:** 1063032415 (Entity type: Individual)
- **Enumerated:** April 25, 2020
- **Primary specialty:** Internal Medicine - Rheumatology · taxonomy 207RR0500X
- **State license:** 036164875 (Illinois)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 4220 W 95TH ST STE 200, Oak Lawn, IL 60453-3072
- **Phone:** (708) 398-0282
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Advocate Health & Hospitals Corporation (NPI 1912936014, Oak Lawn, IL); Endeavor Health Medical Group (NPI 1497701882, Evanston, IL) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 24, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1063032415) · Data from the CMS NPPES public registry.