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

WILLIAM NEILL JOHNSON MD
NPI 1104385269
Internal Medicine - Pulmonary Disease in Jackson, TN

Q: What is William Johnson's NPI number?

The NPI number for William Johnson is 1104385269. It was assigned to this individual provider in the NPPES registry on March 18, 2019.

Q: What is William Johnson's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.

Q: When was this NPI record last updated?

The NPPES record for William Johnson was last updated on August 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.

Active since March 18, 2019PECOS Enrolled

587 SKYLINE DR, JACKSON, TN 38301(731) 422-7900 Get Directions Write a Review

NPPES record last updated: August 14, 2026. Verified against the NPPES registry weekly; last sync: August 30, 2026.

Record update history: Aug 14, 2026, Dec 22, 2022, Sep 21, 2022 and 1 more (4 updates tracked since 2019).

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About William Neill Johnson Md NPPES

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

WILLIAM NEILL JOHNSON MD (NPI 1104385269) is an individual pulmonary disease provider in Jackson, Tennessee, licensed in Tennessee (247168) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1104385269

Entity TypeIndividualMale

Primary Taxonomy207RP1001X

Provider Legal NameWILLIAM NEILL JOHNSONCredential: MD

Location Address587 SKYLINE DRJackson, TN 38301-3911

Mailing Address257 Bancorp South PkwyJackson, TN 38305-7582 · (731) 422-7900

Phone(731) 422-7900

Sole ProprietorNo

Enumeration DateMarch 18, 2019

Last NPPES UpdateAugust 14, 20264 updates tracked since enumeration

NPPES CertifiedAugust 14, 2026

✔ NPI 1104385269 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Pulmonary DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RP1001X

License✔ Licensed in TN · 247168

Definition

An internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex disorders of the lungs.

Also ListedInternal MedicineTaxonomy 207R00000X · License 247168 (TN)

Also ListedInternal Medicine · Critical Care MedicineTaxonomy 207RC0200X · License 247168 (TN)

587 SKYLINE DR, Jackson, TN 38301

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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

William Neill Johnson Md 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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 38301 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$121.80 typical visit price

range $52.64 – $160.89

Typical copayment $30.45 (range $13.16 – $40.22)

Most-billed visit code 99204

Established Patient

$93.60 typical visit price

range $16.72 – $131.41

Typical copayment $23.40 (range $4.18 – $32.85)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

JOHN BAKER MD

Internal Medicine (Cardiovascular Disease)