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JOHN STEPHEN CORNS DO
NPI 1265560437
Pediatrics - Pediatric Hematology-Oncology in Knoxville, TN

Active since March 01, 2007PECOS Enrolled
2018 CLINCH AVE, KNOXVILLE, TN 37916(865) 541-8266(865) 541-8553 Get Directions Write a Review

NPPES record last updated: February 14, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Feb 14, 2025, Apr 8, 2022, Mar 8, 2019 and 1 more (4 updates tracked since 2017).

About John Stephen Corns Do NPPES

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

JOHN STEPHEN CORNS DO (NPI 1265560437) is an individual pediatric hematology-oncology provider in Knoxville, Tennessee, licensed in Tennessee (2142) and active in the NPI registry since March 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1265560437
Entity TypeIndividualMale
Primary Taxonomy2080P0207X
Provider Legal NameJOHN STEPHEN CORNSCredential: DO
Location Address2018 CLINCH AVEKnoxville, TN 37916-2301
Mailing AddressPo Box 15010Knoxville, TN 37901-5010 · (865) 541-8187 · Fax (865) 541-8286
Phone(865) 541-8266
Fax(865) 541-8553
Sole ProprietorNo
Enumeration DateMarch 1, 2007
Last NPPES UpdateFebruary 14, 20254 updates tracked since enumeration
NPPES CertifiedFebruary 14, 2025
✔ NPI 1265560437 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPediatrics · Pediatric Hematology-OncologyAllopathic & Osteopathic Physicians
Taxonomy Code2080P0207X
License✔ Licensed in TN · 2142
Definition

A pediatrician trained in the combination of pediatrics, hematology and oncology to recognize and manage pediatric blood disorders and cancerous diseases.

Also ListedPediatricsTaxonomy 208000000X · License 2142 (TN)
2018 CLINCH AVE, Knoxville, TN 37916
Open in Google Maps ↗

Other Identifiers 1

Medicaid1518163TN

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include BlueCross BlueShield of Tennessee.Insurance ›

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 Stephen Corns Do 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.

EAST TENNESSEE CHILDREN'S HOSPITAL ASSOCIATION, INC
Pharmacy
2018 CLINCH AVE
KNOXVILLE, TN 37916
Knox County (865) 541-8123
ABBEY MARIE JAMISON LCGC
Genetic Counselor, MS
2018 CLINCH AVE, 2ND FLOOR SOUTH TOWER
KNOXVILLE, TN 37916
Knox County (865) 525-1425
SARAH MACKEY DO
Pediatrics (Pediatric Hematology-Oncology)
2018 CLINCH AVE
KNOXVILLE, TN 37916
Knox County (865) 541-8266
JOSHUA LABIT
Counselor
2018 CLINCH AVE
KNOXVILLE, TN 37916
Knox County (865) 541-8000
ASHLEY SOWARDS PHARMD
Pharmacist (Ambulatory Care)
2018 CLINCH AVE
KNOXVILLE, TN 37916
Knox County (865) 541-8491
SARA LYNNE NORTON NP
Nurse Practitioner (Pediatrics)
2018 CLINCH AVE, SOUTH TOWER 2ND FLOOR
KNOXVILLE, TN 37916
Knox County (865) 525-1425
ROBYN MARIE TIDWELL
Behavior Technician
2018 CLINCH AVE
KNOXVILLE, TN 37916
Knox County (865) 637-9711
SAVANNAH DAVIS
Behavior Technician
2018 CLINCH AVE
KNOXVILLE, TN 37916
Knox County (865) 541-6958

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 Corns's NPI number?

The NPI number for John Corns is 1265560437. It was assigned to this individual provider in the NPPES registry on March 1, 2007.

Where is John Corns located?

John Corns practices at 2018 Clinch Ave, Knoxville, TN 37916. The listed phone number is (865) 541-8266.

What is John Corns's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Hematology-Oncology, with taxonomy code 2080P0207X.

Is John Corns enrolled in Medicare?

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

What insurance does John Corns accept?

Health plans from BlueCross BlueShield of Tennessee list John Corns 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 John Corns was last updated on February 14, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.