NPPES file of Aug 9, 2026

John Thornton Foust, MD

Hematology & Oncology Physician · Oak Ridge, TN

John Thornton Foust, MD is a hematology & oncology physician with a practice address in Oak Ridge, Tennessee, and NPI 1205834835, issued on Jul 8, 2005. Check the license (Tennessee MD017405, 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
1205834835
Name
John Thornton Foust
Credential
MD
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
MD017405 TN
Self-reported in NPPES; status is on the state search
Practice location
800 Oak Ridge Tpke, Oak Ridge, TN 37830
Phone
(865) 444-3050
Enumerated
Jul 8, 2005
Record last updated
Oct 12, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(865) 544-1861
Medicare enrollment
Enrolled (PECOS I20100922000030); accepts Medicare assignment
Medical or professional school
University Of Tennessee, Hsc, College Of Medicine, 1985
Telehealth
Offers telehealth (CMS)
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 800 Oak Ridge Tpke

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

  1. Nicolas AlcalaUrology Physician1972139483
  2. Carman Alig, LPNLicensed Practical Nurse1053862987
  3. Heather Bales, MA,CCC/AAudiologist1477725661
  4. Davina Blazer, PA-CPhysician Assistant1598733958
  5. Frederick Bunge, M.D.Otolaryngology Physician1760477723
  6. Stuart Chasan, M.D.Urology Physician1457351496

Verify John Thornton Foust 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 MD017405
    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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5% more Medicare Part D claims than the average hematology & oncology physician in 2024

925 Medicare Part D claims for 207 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 32% of claims. 74 claims were for opioids.

  1. John Foust925
  2. Specialty average877

Most prescribed

  1. Anastrozole118 claims
  2. Ondansetron Hcl55 claims
  3. Imbruvica51 claims
  4. Calquence50 claims
  5. Eliquis39 claims
  6. Hydrocodone-Acetaminophen37 claims

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.

The MIPS final score for 2023 (Medicare payment program): 95.7 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score85.3
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

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

Industry payments in 2024: $4,070.05

216 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, Inc. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. John Foust$4,070.05
  2. Specialty average$7,481.41

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. University Health System, Inc.Sevierville, TN

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

John Thornton Foust among 273 hematology & oncology physician records in Tennessee

John Thornton Foust, MD is one of 273 hematology & oncology physician records with a practice address in Tennessee. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 84% newer
  • In a Medicare fileYes · 89% of these records are
  • In the CMS Doctors and Clinicians fileYes · 82% of these records are
  • Graduated1985 · median 2004 among the 223 with a school on file
  • Record last updated2016 · 46% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hematology & Oncology Physician providers in Tennessee

There are 273 hematology & oncology physician records in Tennessee.

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Catherine Murphree, MDOak Ridge, TN 378301578067286
  2. Thomas Repine, MDOak Ridge, TN 378301245324938
  3. Trena Stoute, MDOak Ridge, TN 378301588003719
  4. Michael Thompson, MDOak Ridge, TN 378301023016631
  5. Namratha Vontela, M.D.Oak Ridge, TN 378301619263852
  6. Clarissa Geyer, M.D.Morristown, TN 378141528264223
  7. Alay Mansurov, M.D.Morristown, TN 378141033592035
  8. Richard Antonucci, MDPowell, TN 378491841290541

Common questions

What is John Thornton Foust, MD's NPI number?

John Thornton Foust, MD's National Provider Identifier (NPI) is 1205834835, issued on Jul 8, 2005. An NPI identifies a provider in billing; it is not a license.

Where is John Thornton Foust, MD located?

The NPPES record lists a practice address at 800 Oak Ridge Tpke, Oak Ridge, TN, 37830. Phone: (865) 444-3050. Providers update this record themselves, so call before visiting.

How can I verify John Thornton Foust, MD's license?

NPPES lists Tennessee license number MD017405, 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 Thornton Foust, MD prescribe under Medicare Part D?

In 2024, John Thornton Foust, MD had 925 Medicare Part D claims for 207 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.

What is John Thornton Foust, MD's MIPS final score?

The 2023 MIPS final score is 95.7 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.