NPPES file of Aug 9, 2026

John W. Allred, MD

Diagnostic Radiology Physician · Chattanooga, TN

John W. Allred, MD is a diagnostic radiology physician with a practice address in Chattanooga, Tennessee, and NPI 1497842520, issued on Oct 9, 2006. Check the license (Tennessee MD39740, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1497842520
Name
John W. Allred
Credential
MD
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License number
MD39740 TN
Self-reported in NPPES; status is on the state search
Practice location
975 E 3RD St # 376, Chattanooga, TN 37403
Phone
(423) 778-7234
Enumerated
Oct 9, 2006
Record last updated
Oct 5, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(931) 967-8278
Medicare enrollment
Enrolled (PECOS I20161012000557); accepts Medicare assignment
Medical or professional school
University Of Alabama School Of Medicine, 2000
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 975 E 3RD St # 376

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Ryan Buckner, M.D.Diagnostic Radiology Physician1851527394
  2. Laura Curtis, PAPhysician Assistant1134713357
  3. Andrew Hill, M.D.Diagnostic Radiology Physician1376839118
  4. Michael Nichols, M.D.Diagnostic Radiology Physician1952614729
  5. Amanda Palmer, RT(R),RPARadiology Practitioner Assistant1093187130
  6. Amanda Porter, ACNP-BCAcute Care Nurse Practitioner1710233838

Verify John W. Allred in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTennessee Board of Medical Examiners
    Search for license MD39740
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Tennessee license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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73% fewer Medicare Part D claims than the average diagnostic radiology physician in 2024

14 Medicare Part D claims, against an average of 51 among the 2,711 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. John Allred14
  2. Specialty average51

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

No measured MIPS final score for 2023

CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Tennessee Interventional And Imaging Associates PLLCMurphy, NC

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

John W. Allred among 968 diagnostic radiology physician records in Tennessee

John W. Allred, MD is one of 968 diagnostic radiology physician records with a practice address in Tennessee. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 19% of them.

  • NPI issued2006 · 19% of these records are older, 45% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated2000 · median 2004 among the 657 with a school on file
  • Record last updated2018 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Diagnostic Radiology Physician providers in Tennessee

There are 968 diagnostic radiology physician records in Tennessee.

The 8 diagnostic radiology physician records with the nearest ZIP codes

  1. Jose Barriocanal, M.D., PH.D.Chattanooga, TN 374031225245921
  2. Ryan Buckner, M.D.Chattanooga, TN 374031851527394
  3. Jared Burlison, MD, PHDChattanooga, TN 374031467778258
  4. Harigovinda Challa, MDChattanooga, TN 374031508942319
  5. Andrew Hill, M.D.Chattanooga, TN 374031376839118
  6. Michael Nichols, M.D.Chattanooga, TN 374031952614729
  7. Samuel Porter, M.D.Chattanooga, TN 374031225284557
  8. Steven Quarfordt, MDChattanooga, TN 374031154352946

Common questions

What is John W. Allred, MD's NPI number?

John W. Allred, MD's National Provider Identifier (NPI) is 1497842520, issued on Oct 9, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John W. Allred, MD located?

The NPPES record lists a practice address at 975 E 3RD St # 376, Chattanooga, TN, 37403. Phone: (423) 778-7234. Providers update this record themselves, so call before visiting.

How can I verify John W. Allred, MD's license?

NPPES lists Tennessee license number MD39740, as entered by the provider. Search the Tennessee Board of Medical Examiners at https://www.tn.gov/health/licensure/me.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does John W. Allred, MD prescribe under Medicare Part D?

In 2024, John W. Allred, MD had 14 Medicare Part D claims; the average among diagnostic radiology physician prescribers was 51. Part D covers Medicare prescriptions only.

What is John W. Allred, MD's MIPS final score?

CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.