Registry data as of Aug 27, 2026

Charles Sienknecht, M.D.

Rheumatology Physician · Hixson, TN

Charles Sienknecht, M.D. is a rheumatology physician with a practice address in Hixson, Tennessee, and NPI 1740224526, issued on Jun 15, 2006. Check the license (Tennessee 9242, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1740224526
Name
Charles Sienknecht
Credential
M.D.
Primary taxonomy
Rheumatology Physician 207RR0500X
License number
9242 TN
Self-reported in NPPES; status is on the state search
Practice location
1035 Executive Drive, Hixson, TN 37343
Phone
(423) 826-0800
Enumerated
Jun 15, 2006
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 1035 Executive Drive

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

  1. Joseph Huffstutter, M.D.Rheumatology Physician1902840788
  2. John Paty, M.D.Rheumatology Physician1831133610

Verify Charles Sienknecht 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 9242
    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.

99% fewer Medicare Part D claims than the average rheumatology physician in 2024

28 Medicare Part D claims, against an average of 2,058 among the 4,833 providers of this specialty who prescribed in Part D.

  1. Charles Sienknecht28
  2. Specialty average2,058

Most prescribed

  1. Prednisone11 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.

Rheumatology Physician providers in Tennessee

There are 113 rheumatology physician records in Tennessee.

Other rheumatology physician records in Tennessee

  1. Mishal Abdullah, M.D.Knoxville, TN1730319518
  2. Annette Abril, M.D.Kingsport, TN1013127430
  3. Iman Abutineh, MDMemphis, TN1316503444
  4. Titilola Akhigbe, M.DMemphis, TN1437350816
  5. Mohammad Ali, M.DHendersonville, TN1871696096
  6. Jane Alissandratos, M.D.Cordova, TN1497746838
  7. Narender Annapureddy, M.D.Nashville, TN1821302597
  8. Judy Ash, M.D.Cordova, TN1730170184
  9. Daniel Austin, MDMemphis, TN1003435793
  10. James Baker, M.D.Johnson City, TN1477530301

Common questions

What is Charles Sienknecht, M.D.'s NPI number?

Charles Sienknecht, M.D.'s National Provider Identifier (NPI) is 1740224526, issued on Jun 15, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Charles Sienknecht, M.D. located?

The NPPES record lists a practice address at 1035 Executive Drive, Hixson, TN, 37343. Phone: (423) 826-0800. Providers update this record themselves, so call before visiting.

How can I verify Charles Sienknecht, M.D.'s license?

NPPES lists Tennessee license number 9242, 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 Charles Sienknecht, M.D. prescribe under Medicare Part D?

In 2024, Charles Sienknecht, M.D. had 28 Medicare Part D claims; the average among rheumatology physician prescribers was 2,058. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.