GILES CHRISTOPHER SIMPSON MD
NPI 1316927155
Emergency Medicine in Maywood, IL
About Giles Christopher Simpson Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
GILES CHRISTOPHER SIMPSON MD (NPI 1316927155) is an individual emergency medicine provider in Maywood, Illinois, licensed in Illinois (36093268) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS, is affiliated with Loyola University Medical Center, and is a graduate of University Of Maryland School Of Medicine (1993).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 2
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
Giles Christopher Simpson Md 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 Giles Simpson reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Maywood, IL 60153
- Reassigned Medicare billing, Illinois enrollment
- 1,138 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 4
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 60153 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.
MAYWOOD, IL 60153
MAYWOOD, IL 60153
MAYWOOD, IL 60153
MAYWOOD, IL 60153
MAYWOOD, IL 60153
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 Giles Simpson's NPI number?
The NPI number for Giles Simpson is 1316927155. It was assigned to this individual provider in the NPPES registry on January 18, 2006.
Where is Giles Simpson located?
Giles Simpson practices at 2160 S First Ave Ems Bldg. Rm. 2700, Maywood, IL 60153. The listed phone number is (708) 327-2700.
What is Giles Simpson's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Giles Simpson enrolled in Medicare?
Yes. Giles Simpson 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 Giles Simpson's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Giles Simpson reassigns Medicare benefits to Loyola University Medical Center (Maywood, 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 Giles Simpson's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Giles Simpson affiliated with any hospitals?
According to CMS data, Giles Simpson is affiliated with Loyola University Medical Center.
When was this NPI record last updated?
The NPPES record for Giles Simpson was last updated on November 9, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Giles Christopher Simpson, MD · NPI 1316927155
Emergency Medicine physician in Maywood, Illinois. Individual provider, active in the CMS NPPES registry since January 18, 2006.
## Identity
- **NPI:** 1316927155 (Entity type: Individual)
- **Enumerated:** January 18, 2006
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** 36093268 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 2160 S FIRST AVE, EMS BLDG. RM. 2700, Maywood, IL 60153
- **Phone:** (708) 327-2700 · **Fax:** (708) 327-3474
## 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:** Loyola University Medical Center (NPI 1336159961, Maywood, IL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Maryland School Of Medicine, class of 1993
## Record status
- **NPPES last updated:** November 9, 2009
- **Other identifiers:** Medicare ID-Type Unspecified 205077 (IL); Medicare UPIN G71068
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Source: [NPI Profile](https://npiprofile.com/npi/1316927155) · Data from the CMS NPPES public registry.