NPPES file of Aug 9, 2026

John Gregory Kupfner, M.D.

Psychiatry Physician · Sevierville, TN

John Gregory Kupfner, M.D. is a psychiatry physician with a practice address in Sevierville, Tennessee, and NPI 1285832964, issued on Jul 5, 2007. Check the license (Tennessee 46026, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1285832964
Name
John Gregory Kupfner
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License numbers
46026 TN
4301512391 MI
0101241464 VA
Self-reported in NPPES; status is on the state search
Practice location
3889 Wonderland LN, Sevierville, TN 37862
Phone
(865) 366-7812
Enumerated
Jul 5, 2007
Record last updated
Oct 31, 2024
Medicaid ID
1521350 TN
Medicare enrollment
Enrolled (PECOS I20101104001255); accepts Medicare assignment
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 3889 Wonderland LN

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

  1. Phillip Tucker, LPC - MHSPProfessional Counselor1952860397

Verify John Gregory Kupfner 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 46026
    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

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5.5 times the Medicare Part D claims of the average psychiatry physician in 2024

5,527 Medicare Part D claims for 584 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.

  1. John Kupfner5,527
  2. Specialty average1,000

Most prescribed

  1. Trazodone Hcl332 claims
  2. Quetiapine Fumarate322 claims
  3. Buspirone Hcl283 claims
  4. Aripiprazole253 claims
  5. Fluoxetine Hcl230 claims
  6. Sertraline Hcl206 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.

Industry payments in 2024: $39.99

2 payments; by number, the most common kind was food and beverage; the largest payer was Axsome Therapeutics, Inc. The 13,693 providers of this specialty with any payment received $4,954.93 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. John Kupfner$39.99
  2. Specialty average$4,954.93

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. Knoxville Center For Behavioral Medicine LLCKnoxville, TN

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

John Gregory Kupfner among 731 psychiatry physician records in Tennessee

John Gregory Kupfner, M.D. is one of 731 psychiatry physician records with a practice address in Tennessee. 66% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 47% of them.

  • NPI issued2007 · 47% of these records are older, 38% newer
  • In a Medicare fileYes · 66% of these records are
  • In the CMS Doctors and Clinicians fileYes · 45% of these records are
  • Graduated2005 · median 2003 among the 329 with a school on file
  • Record last updated2024 · 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 2084P0800X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychiatry Physician providers in Tennessee

There are 731 psychiatry physician records in Tennessee.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Catherine Gyurik, MDSevierville, TN 378621669531075
  2. Megan Stonecypher, M.D.Sevierville, TN 378621508156563
  3. Sara Williar, M.D.Strawberry Plains, TN 378711699968321
  4. Paul Dcruz, MDPowell, TN 378491558361493
  5. Gregory Perry, MDTalbott, TN 378771972501187
  6. Richard Fisher, D.O.Vonore, TN 378851760413678
  7. Tina Jackson, MDWartburg, TN 378871801015821
  8. David Kelner, M.D.Wartburg, TN 378871902851181

Common questions

What is John Gregory Kupfner, M.D.'s NPI number?

John Gregory Kupfner, M.D.'s National Provider Identifier (NPI) is 1285832964, issued on Jul 5, 2007. An NPI identifies a provider in billing; it is not a license.

Where is John Gregory Kupfner, M.D. located?

The NPPES record lists a practice address at 3889 Wonderland LN, Sevierville, TN, 37862. Phone: (865) 366-7812. Providers update this record themselves, so call before visiting.

How can I verify John Gregory Kupfner, M.D.'s license?

NPPES lists Tennessee license number 46026, 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 Gregory Kupfner, M.D. prescribe under Medicare Part D?

In 2024, John Gregory Kupfner, M.D. had 5,527 Medicare Part D claims for 584 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.

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.