ANA EMANUELA ISTRATE MD, MS
NPI 1568081362
Internal Medicine - Infectious Disease in Oak Park, IL
About Ana Emanuela Istrate Md, Ms NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ANA EMANUELA ISTRATE MD, MS (NPI 1568081362) is an individual infectious disease provider in Oak Park, Illinois, licensed in Illinois (036.165536) and active in the NPI registry since April 2020. She is enrolled in Medicare PECOS, is affiliated with Rush Oak Park Hospital, and is a graduate of Other (2020).
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 and accepts Medicare assignment
Ana Emanuela Istrate Md, Ms 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 Ana Istrate reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Oak Brook, IL 60523
- Reassigned Medicare billing, Illinois enrollment
- Medicare enrollment name: Rush University Medical Group
- 2,169 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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Rush Oak Park Hospital
Acute Care Hospitals · Oak Park, ILRush University Medical Center
Acute Care Hospitals · Chicago, 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 Ana Istrate's NPI number?
The NPI number for Ana Istrate is 1568081362. It was assigned to this individual provider in the NPPES registry on April 11, 2020.
Where is Ana Istrate located?
Ana Istrate practices at 520 S Maple Ave, Oak Park, IL 60304. The listed phone number is (708) 383-9300.
What is Ana Istrate's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.
Is Ana Istrate enrolled in Medicare?
Yes. Ana Istrate 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 Ana Istrate's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ana Istrate reassigns Medicare benefits to Rush University Medical Center (Oak Brook, 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 Ana Istrate's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ana Istrate accept?
Health plans from Ambetter Health list Ana Istrate 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 Ana Istrate affiliated with any hospitals?
According to CMS data, Ana Istrate is affiliated with Rush Oak Park Hospital and Rush University Medical Center.
When was this NPI record last updated?
The NPPES record for Ana Istrate was last updated on June 26, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Ana Emanuela Istrate, MD, MS · NPI 1568081362
Infectious Disease physician in Oak Park, Illinois. Individual provider, active in the CMS NPPES registry since April 11, 2020.
## Identity
- **NPI:** 1568081362 (Entity type: Individual)
- **Enumerated:** April 11, 2020
- **Primary specialty:** Internal Medicine - Infectious Disease · taxonomy 207RI0200X
- **State license:** 036.165536 (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:** Rush University Medical Center (NPI 1801375696, Oak Brook, IL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** June 26, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1568081362) · Data from the CMS NPPES public registry.