John Ayers, MD

ActiveIndividual ProviderHematology & Oncology
NPI issued: September 30, 2005

Quick Facts

NPI Number
1477540821
TypeIndividual
StatusActive
SpecialtyHematology & Oncology
Taxonomy207RH0003X — Hematology & Oncology
Phone
(630) 352-5450
StateIL

NPI Validation Status: Verified

✅Valid 10-digit NPI number (1477540821)
✅Active status confirmed
✅Verified by CMS NPPES Registry
✅HIPAA compliant identifier
✅Enumeration date on file (September 30, 2005)
Data source: CMS NPPES

Provider Overview

JOHN AYERS, MD is a Hematology & Oncology provider based in Warrenville, IL who has been registered with CMS since 2005. This NPI is currently Active under CMS NPPES registry.

Provider Details

NPI Number1477540821
Provider TypeIndividual Provider
GenderMale
CredentialMD
StatusActive
Enumeration DateSeptember 30, 2005

Practice Location

CityWarrenville
StateIL
ZIP Code60555-3269
Phone(630) 352-5450

Specialties & Licenses

★ Primary
SpecialtyHematology & Oncology
Taxonomy Code207RH0003X
License StateIL

Mailing Address

CityWarrenville
StateIL
ZIP Code60555-3269
Phone(630) 352-5450
Same as practice location

How to Use This NPI

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For Insurance Billing

Use NPI 1477540821 in Box 33 of the CMS-1500 claim form. This number is required by all major insurance carriers to identify the billing provider and process electronic medical claims.

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For Credentialing

Reference NPI 1477540821for provider credential verification. Hospital systems, state licensing boards, and CAQH directories query this number to verify the provider's active clinical status.

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For Patients

Share NPI 1477540821 with your insurance company. If you need to verify out-of-network benefits or file a reimbursement claim, your insurance provider will require this number to process it.

About Hematology & Oncology

Specialists in Hematology & Oncology provide expert clinical care within their specific domain, focusing on the diagnosis, treatment, and management of conditions relevant to their field of practice.

Browse all Hematology & Oncologyproviders →
📊
14,223
Hematology & Oncology Providers in the US

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People Also Ask

What is John Ayers's NPI number?
John Ayers's NPI number is 1477540821, a unique 10-digit identifier issued by the Centers for Medicare & Medicaid Services (CMS).
Is John Ayers's NPI currently active?
Yes, John Ayers's NPI status is Active as of the latest CMS NPPES database updates.
What does John Ayers specialize in?
John Ayers specializes in Hematology & Oncology. The healthcare taxonomy code associated with this specialty is 207RH0003X.
Where does John Ayers practice?
John Ayers practices in Warrenville, IL 60555-3269.
When was John Ayers's NPI issued?
John Ayers's NPI was issued on September 30, 2005.
What is John Ayers's provider type?
John Ayers is registered as an Individual Provider under CMS NPI Type 1.