DR. DAVID MAYOR MD
NPI 1184684565
Emergency Medicine - Emergency Medical Services in Dekalb, IL
About Dr. David Mayor Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. DAVID MAYOR MD (NPI 1184684565) is an individual emergency medical services provider in Dekalb, Illinois, licensed in Illinois (036064974) and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS, is affiliated with Northwestern Medicine Kishwaukee Hospital, and is a graduate of Loma Linda University School Of Medicine (1981).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 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
Dr. David Mayor 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 Reassignments
3Medicare enrollment records show David Mayor reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Yorkville, IL 60560
- Reassigned Medicare billing, Illinois enrollment
- 116 clinicians in this Medicare group
Carol Stream, IL 60122
- Reassigned Medicare billing, Illinois enrollment
- 4,817 clinicians in this Medicare group
Bolingbrook, IL 60440
- Reassigned Medicare billing, Illinois enrollment
- 187 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.
Northwestern Medicine Kishwaukee Hospital
Acute Care Hospitals · Dekalb, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60115 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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
DEKALB, IL 60115
DEKALB, IL 60115
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 David Mayor's NPI number?
The NPI number for David Mayor is 1184684565. It was assigned to this individual provider in the NPPES registry on March 28, 2006.
Where is David Mayor located?
David Mayor practices at 1 Kish Hospital Dr, Dekalb, IL 60115. The listed phone number is (815) 748-2972.
What is David Mayor's specialty?
The primary specialty registered for this NPI is Emergency Medicine, specializing in Emergency Medical Services, with taxonomy code 207PE0004X.
Is David Mayor enrolled in Medicare?
Yes. David Mayor 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 David Mayor's services?
According to the CMS Revalidation Reassignment List (October 2026 release), David Mayor reassigns Medicare benefits to 3 organizations: Aurora Emergency Physicians, LLC (Yorkville, IL), Northwestern Medical Faculty Foundation (Carol Stream, IL) and Illinois Emergency Medicine Specialists, LLC (Bolingbrook, 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 David Mayor's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is David Mayor affiliated with any hospitals?
According to CMS data, David Mayor is affiliated with Northwestern Medicine Kishwaukee Hospital.
When was this NPI record last updated?
The NPPES record for David Mayor was last updated on November 27, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.