DR. SUSAN HILLARY NACK D.O.
NPI 1265628036
Physical Medicine & Rehabilitation in Chicago, IL
About Dr. Susan Hillary Nack D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. SUSAN HILLARY NACK D.O. (NPI 1265628036) is an individual physical medicine & rehabilitation provider in Chicago, Illinois, licensed in Illinois (036-123319) and active in the NPI registry since September 2007. She is enrolled in Medicare PECOS and is a graduate of Nova Southeastern College Of Osteo Medicine (2005).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Other Identifiers 6
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
Dr. Susan Hillary Nack 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 Reassignments
3Medicare enrollment records show Susan Nack reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Brighton, CO 80601
- Reassigned Medicare billing, Colorado enrollment
- 1,270 clinicians in this Medicare group
Denver, CO 80218
- Reassigned Medicare billing, Colorado enrollment
- 7 clinicians in this Medicare group
Wheat Ridge, CO 80033
- Reassigned Medicare billing, Colorado enrollment
- 111 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 7
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.
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 Susan Nack's NPI number?
The NPI number for Susan Nack is 1265628036. It was assigned to this individual provider in the NPPES registry on September 14, 2007. The provider is also known as S. Hillary Nack Do.
Where is Susan Nack located?
Susan Nack practices at 345 E Superior St, Chicago, IL 60611. The listed phone number is (312) 238-1000.
What is Susan Nack's specialty?
The primary specialty registered for this NPI is Physical Medicine & Rehabilitation with taxonomy code 208100000X.
Is Susan Nack enrolled in Medicare?
Yes. Susan Nack 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 Susan Nack's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Susan Nack reassigns Medicare benefits to 3 organizations: Intermountain Medical Group Denver, LLC (Brighton, CO), Healthone Clinic Services - Surgery Neurological LLC (Denver, CO) and Intermountain Front Range, Inc. (Wheat Ridge, CO). 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 Susan Nack's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Susan Nack accept?
Health plans from UnitedHealthcare list Susan Nack 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.
When was this NPI record last updated?
The NPPES record for Susan Nack was last updated on November 8, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.