SUMMERS MICHELLE STACKS M.D.
NPI 1710206784
Hospitalist in Chicago, IL
About Summers Michelle Stacks M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SUMMERS MICHELLE STACKS M.D. (NPI 1710206784) is an individual hospitalist provider in Chicago, Illinois, licensed in Illinois (036130856) and active in the NPI registry since May 2010. She is enrolled in Medicare PECOS, is affiliated with Loyola University Medical Center, and maintains a secondary practice location in Park Ridge.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
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
Summers Michelle Stacks M.d. 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 Reassignments
3Medicare enrollment records show Summers Stacks reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Chicago, IL 60612
- Reassigned Medicare billing, Illinois enrollment
- 548 clinicians in this Medicare group
Chicago, IL 60612
- Reassigned Medicare billing, Illinois enrollment
- 2,169 clinicians in this Medicare group
Hinsdale, IL 60521
- Reassigned Medicare billing, Illinois enrollment
- 13 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 3
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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Loyola University Medical Center
Acute Care Hospitals · Maywood, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60607 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 9
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CHICAGO, IL 60607
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 Summers Stacks's NPI number?
The NPI number for Summers Stacks is 1710206784. It was assigned to this individual provider in the NPPES registry on May 28, 2010.
Where is Summers Stacks located?
Summers Stacks practices at 516 S Loomis St, Chicago, IL 60607. The listed phone number is (312) 942-5000.
What is Summers Stacks's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Summers Stacks enrolled in Medicare?
Yes. Summers Stacks 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 organizations bill Medicare for Summers Stacks's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Summers Stacks reassigns Medicare benefits to 3 organizations: Rush Medical Group (Chicago, IL), Rush University Medical Group (Chicago, IL) and Rml Health Providers Limited Partnership (Hinsdale, 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 Summers Stacks's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Summers Stacks affiliated with any hospitals?
According to CMS data, Summers Stacks is affiliated with Loyola University Medical Center.
When was this NPI record last updated?
The NPPES record for Summers Stacks was last updated on July 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.
# Summers Michelle Stacks, M.D. · NPI 1710206784
Hospitalist physician in Chicago, Illinois. Individual provider, active in the CMS NPPES registry since May 28, 2010.
## Identity
- **NPI:** 1710206784 (Entity type: Individual)
- **Enumerated:** May 28, 2010
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** 036130856 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 516 S LOOMIS ST, Chicago, IL 60607-2812
- **Phone:** (312) 942-5000
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Rush Medical Group (NPI 1467312850, Chicago, IL); Rush University Medical Group (NPI 1093819542, Chicago, IL); Rml Health Providers Limited Partnership (NPI 1952304826, Hinsdale, IL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Illinois College Of Med, class of 2009
## Record status
- **NPPES last updated:** July 14, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1710206784) · Data from the CMS NPPES public registry.