REENA SHAH D.O.
NPI 1972597524
Internal Medicine in Batavia, IL
About Reena Shah D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
REENA SHAH D.O. (NPI 1972597524) is an individual internal medicine provider in Batavia, Illinois, licensed in Illinois (36-107392) and active in the NPI registry since September 2005. She is enrolled in Medicare PECOS, is affiliated with Advocate Sherman Hospital, and is a graduate of Other (1999).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
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
Reena Shah D.o. 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 Reena Shah reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Aurora, IL 60506
- Reassigned Medicare billing, Illinois enrollment
- 383 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 19
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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Advocate Sherman Hospital
Acute Care Hospitals · Elgin, ILNorthwestern Medicine Delnor Community Hospital
Acute Care Hospitals · Geneva, ILNorthwestern Medicine Central Dupage Hospital
Acute Care Hospitals · Winfield, ILNorthwestern Medicine Kishwaukee Hospital
Acute Care Hospitals · Dekalb, ILAdvocate Good Samaritan Hospital
Acute Care Hospitals · Downers Grove, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60510 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
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 Reena Shah's NPI number?
The NPI number for Reena Shah is 1972597524. It was assigned to this individual provider in the NPPES registry on September 9, 2005.
Where is Reena Shah located?
Reena Shah practices at 2500 W Fabyan Pkwy, Batavia, IL 60510. The listed phone number is (630) 879-2110.
What is Reena Shah's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Reena Shah enrolled in Medicare?
Yes. Reena Shah 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 Reena Shah's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Reena Shah reassigns Medicare benefits to Advocate Health And Hospitals Corporation (Aurora, 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 Reena Shah's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Reena Shah accept?
Health plans from Ambetter Health, Ambetter Health of Delaware and Oscar Health list Reena Shah 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 Reena Shah affiliated with any hospitals?
According to CMS data, Reena Shah is affiliated with Advocate Sherman Hospital, Northwestern Medicine Delnor Community Hospital, Northwestern Medicine Central Dupage Hospital, Northwestern Medicine Kishwaukee Hospital and Advocate Good Samaritan Hospital.
When was this NPI record last updated?
The NPPES record for Reena Shah was last updated on November 18, 2021. 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.