Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

JOHN J AYRES M.D.
NPI 1164491114
Anesthesiology in Peoria, IL

Active since March 14, 2006PECOS Enrolled
7309 N KNOXVILLE AVE, PEORIA, IL 61614(309) 282-0827(309) 683-1003 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About John J Ayres M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JOHN J AYRES M.D. (NPI 1164491114) is an individual anesthesiology provider in Peoria, Illinois and active in the NPI registry since March 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1164491114
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameJOHN J AYRESCredential: M.D.
Location Address7309 N KNOXVILLE AVEPeoria, IL 61614-2085
Mailing Address16 N Oregon CtMorton, IL 61550-1783 · (309) 282-0827 · Fax (309) 683-1003
Fax(309) 683-1003
Sole ProprietorNo
Enumeration DateMarch 14, 2006
Last NPPES UpdateJuly 13, 2026
NPI 1164491114 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
7309 N KNOXVILLE AVE, Peoria, IL 61614

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare (PECOS)

John J Ayres M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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.

Physician Assistant (Surgical)
7309 N KNOXVILLE AVE
PEORIA, IL 61614
Nurse Anesthetist, Certified Registered
7309 N KNOXVILLE AVE
PEORIA, IL 61614
Nurse Anesthetist, Certified Registered
7309 N KNOXVILLE AVE
PEORIA, IL 61614
Urology
7309 N KNOXVILLE AVE
PEORIA, IL 61614
Nurse Practitioner (Family)
7309 N KNOXVILLE AVE
PEORIA, IL 61614
Nurse Anesthetist, Certified Registered
7309 N KNOXVILLE AVE
PEORIA, IL 61614
Nurse Anesthetist, Certified Registered
7309 N KNOXVILLE AVE
PEORIA, IL 61614
Nurse Anesthetist, Certified Registered
7309 N KNOXVILLE AVE
PEORIA, IL 61614

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 John Ayres's NPI number?

The NPI number for John Ayres is 1164491114. It was assigned to this individual provider in the NPPES registry on March 14, 2006.

Where is John Ayres located?

John Ayres practices at 7309 N Knoxville Ave, Peoria, IL 61614. The listed phone number is (309) 282-0827.

What is John Ayres's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is John Ayres enrolled in Medicare?

Yes. John Ayres is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for John Ayres was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 36 days 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.