ALEXANDRA PETRAKOS MD
NPI 1326545781
Internal Medicine - Geriatric Medicine in Chicago, IL
About Alexandra Petrakos Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALEXANDRA PETRAKOS MD (NPI 1326545781) is an individual geriatric medicine provider in Chicago, Illinois, licensed in Illinois (036159629) and active in the NPI registry since April 2018. She is enrolled in Medicare PECOS, is affiliated with Palos Community Hospital, and is a graduate of Other (2018).
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Alexandra Petrakos Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Alexandra Petrakos reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Carol Stream, IL 60122
- Reassigned Medicare billing, Illinois enrollment
- 4,817 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 18
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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Palos Community Hospital
Acute Care Hospitals · Palos Heights, ILNorthwestern Lake Forest Hospital
Acute Care Hospitals · Lake Forest, ILNorthwestern Medicine Central Dupage Hospital
Acute Care Hospitals · Winfield, ILNorthwestern Memorial Hospital
Acute Care Hospitals · Chicago, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60611 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.
Other Providers at the Same Location NPPES 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Alexandra Petrakos's NPI number?
The NPI number for Alexandra Petrakos is 1326545781. It was assigned to this individual provider in the NPPES registry on April 11, 2018.
Where is Alexandra Petrakos located?
Alexandra Petrakos practices at 675 N Saint Clair St Fl 18, Chicago, IL 60611. The listed phone number is (312) 695-4525.
What is Alexandra Petrakos's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Geriatric Medicine, with taxonomy code 207RG0300X.
Is Alexandra Petrakos enrolled in Medicare?
Yes. Alexandra Petrakos is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Alexandra Petrakos's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Alexandra Petrakos reassigns Medicare benefits to Northwestern Medical Faculty Foundation (Carol Stream, 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 Alexandra Petrakos's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Alexandra Petrakos affiliated with any hospitals?
According to CMS data, Alexandra Petrakos is affiliated with Palos Community Hospital, Northwestern Lake Forest Hospital, Northwestern Medicine Central Dupage Hospital and Northwestern Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Alexandra Petrakos was last updated on June 21, 2022. 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.