DR. DEENA HASSABALLA D.O.
NPI 1679890446
Physical Medicine & Rehabilitation in Chicago, IL
About Dr. Deena Hassaballa D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DEENA HASSABALLA D.O. (NPI 1679890446) is an individual physical medicine & rehabilitation provider in Chicago, Illinois, licensed in Illinois (036.132197) and active in the NPI registry since May 2010. She is enrolled in Medicare PECOS and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 3
Other Identifiers 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Deena Hassaballa D.o. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
3Medicare enrollment records show Deena Hassaballa reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Chicago, IL 60611
- Reassigned Medicare billing, Illinois enrollment
- 64 clinicians in this Medicare group
Carbondale, IL 62901
- Reassigned Medicare billing, Illinois enrollment
- 702 clinicians in this Medicare group
Albany, GA 31707
- Reassigned Medicare billing, Georgia enrollment
- Medicare enrollment name: Phoebe Physician Group Inc
- 1,118 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.
Referred Medical Equipment & Supplies CMS DME claims 18
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 60611
CHICAGO, IL 60611
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 Deena Hassaballa's NPI number?
The NPI number for Deena Hassaballa is 1679890446. It was assigned to this individual provider in the NPPES registry on May 3, 2010.
Where is Deena Hassaballa located?
Deena Hassaballa practices at 355 E Erie St, Chicago, IL 60611. The listed phone number is (312) 238-1000.
What is Deena Hassaballa's specialty?
The primary specialty registered for this NPI is Physical Medicine & Rehabilitation with taxonomy code 208100000X.
Is Deena Hassaballa enrolled in Medicare?
Yes. Deena Hassaballa is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Deena Hassaballa's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Deena Hassaballa reassigns Medicare benefits to 3 organizations: Rehabilitation Institute Of Chicago (Chicago, IL), Southern Illinois Medical Services, Nfp (Carbondale, IL) and Phoebe Gastroenterology Associates (Albany, GA). 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 Deena Hassaballa's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Deena Hassaballa was last updated on June 25, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.