NPPES file of Aug 9, 2026

Jonathan L. Klein, M.D.

Hematology (Pathology) Physician · Maryville, TN

Jonathan L. Klein, M.D. is a hematology (pathology) physician with a practice address in Maryville, Tennessee, and NPI 1114239308, issued on Jul 5, 2010. Check the license (Tennessee 487634, 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
1114239308
Name
Jonathan L. Klein
Credential
M.D.
Primary taxonomy
Hematology (Pathology) Physician 207ZH0000X
License numbers
487634 TN
2010003222 MO
Self-reported in NPPES; status is on the state search
Practice location
250 E Broadway Ave, Maryville, TN 37804
Phone
(865) 380-9746
Enumerated
Jul 5, 2010
Record last updated
Oct 10, 2012 (not updated in 14 years: call before relying on the address or phone)
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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Also registered at 250 E Broadway Ave

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

  1. Nicholas Potter, PHDClinical Molecular Genetics Physician1174599419
  2. Mark Stonecypher, MD PHDClinical Pathology/Laboratory Medicine Physician1669691838

Verify Jonathan L. Klein 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 487634
    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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Industry payments in 2024: $2,525.51

11 payments; by number, the most common kind was food and beverage; the largest payer was Roche Diagnostics Corporation. The 72 providers of this specialty with any payment received $4,540.82 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Jonathan Klein$2,525.51
  2. Specialty average$4,540.82

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

Hematology (Pathology) Physician providers in Tennessee

There are 10 hematology (pathology) physician records in Tennessee.

Other hematology (pathology) physician records in Tennessee

  1. Michael Allen, M.D.Nashville, TN1942568936
  2. Mary Ann Arildsen, MD, PHDNashville, TN1023105152
  3. Silvia Bunting, M.D.Nashville, TN1548366594
  4. Carolyn Chesney, MDGermantown, TN1720012297
  5. Douglas Kingma, MDFranklin, TN1003871815
  6. Thomas McCurley, M.D.Nashville, TN1689693244
  7. Debra Nelson, M.B.B.S., M.D.Brentwood, TN1699808782
  8. Adam Seegmiller, MDNashville, TN1225231772
  9. Wlodzimierz Szczarkowski, MDBrentwood, TN1700096062

Common questions

What is Jonathan L. Klein, M.D.'s NPI number?

Jonathan L. Klein, M.D.'s National Provider Identifier (NPI) is 1114239308, issued on Jul 5, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Jonathan L. Klein, M.D. located?

The NPPES record lists a practice address at 250 E Broadway Ave, Maryville, TN, 37804. Phone: (865) 380-9746. Providers update this record themselves, so call before visiting.

How can I verify Jonathan L. Klein, M.D.'s license?

NPPES lists Tennessee license number 487634, 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. 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.