NPPES file of Aug 9, 2026

John Stephen Thomas, M.D.

Sleep Medicine (Psychiatry & Neurology) Physician · Knoxville, TN

John Stephen Thomas, M.D. is a sleep medicine (psychiatry & neurology) physician with a practice address in Knoxville, Tennessee, and NPI 1083677835, issued on Apr 11, 2006. Check the license (Tennessee 49939, as entered in NPPES) on the Tennessee Board of Medical Examiners; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1083677835
Name
John Stephen Thomas
Credential
M.D.
Primary taxonomy
Sleep Medicine (Psychiatry & Neurology) Physician 2084S0012X
License numbers
49939 TN
047671 GA
04-38538 KS
Self-reported in NPPES; status is on the state search
Practice location
1128 E Weisgarber RD Ste 201, Knoxville, TN 37909
Phone
(865) 909-0744
Enumerated
Apr 11, 2006
Record last updated
Aug 29, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(865) 909-0393
Medicaid ID
Q006140 TN
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest sleep medicine (psychiatry & neurology) physician records → All 18 in Tennessee → Look up another NPI →

Also registered at 1128 E Weisgarber RD Ste 201

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

  1. Brent Plessinger, PA-CPhysician Assistant1134872906
  2. Jocelyn Toman, PA-CPhysician Assistant1518691674

Verify John Stephen Thomas 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 49939    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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John Stephen Thomas among 18 sleep medicine (psychiatry & neurology) physician records in Tennessee

John Stephen Thomas, M.D. is one of 18 sleep medicine (psychiatry & neurology) physician records with a practice address in Tennessee. 67% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 17% of them.

  • NPI issued2006 · 17% of these records are older, 28% newer
  • In a Medicare fileNo · 67% of these records are
  • In the CMS Doctors and Clinicians fileNo · 61% of these records are
  • Record last updated2018 · 33% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084S0012X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Sleep Medicine (Psychiatry & Neurology) Physician providers in Tennessee

There are 18 sleep medicine (psychiatry & neurology) physician records in Tennessee. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 18 in Tennessee → Every provider in Knoxville → Sleep Medicine (Psychiatry & Neurology) Physician nationwide →

The 8 sleep medicine (psychiatry & neurology) physician records with the nearest ZIP codes

  1. Michael Eisenstadt, MDKnoxville, TN 379201790865335
  2. Thomas Higgins, MDKnoxville, TN 379231780766469
  3. Christopher Nolte, M.D.Knoxville, TN 379341790768091
  4. Nancy Lamb, M.D.Cordova, TN 380181326140047
  5. John Dengler, MDJohnson City, TN 376041396790085
  6. Kanika Bagai, MDNashville, TN 372321750465860
  7. Lana Jeradeh Boursoulian, M.D.Nashville, TN 372321346465358
  8. Beth Malow, MDNashville, TN 372321629165733

Common questions

What is John Stephen Thomas, M.D.'s NPI number?

John Stephen Thomas, M.D.'s National Provider Identifier (NPI) is 1083677835, issued on Apr 11, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John Stephen Thomas, M.D. located?

The NPPES record lists a practice address at 1128 E Weisgarber RD Ste 201, Knoxville, TN, 37909. Phone: (865) 909-0744. Providers update this record themselves, so call before visiting.

How can I verify John Stephen Thomas, M.D.'s license?

NPPES lists Tennessee license number 49939, 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.

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

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.