NPPES file of Aug 9, 2026

David Clifton Duff

Case Manager/Care Coordinator · Athens, TN

David Clifton Duff is a case manager/care coordinator with a practice address in Athens, Tennessee, and NPI 1629748595, issued on Sep 14, 2021. Check the license with the Tennessee board that licenses this profession; 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
1629748595
Name
David Clifton Duff
Primary taxonomy
Case Manager/Care Coordinator 171M00000X
Practice location
2336 Congress Pkwy S, Athens, TN 37303
Phone
(423) 266-6751
Enumerated
Sep 14, 2021
Record last updated
Sep 14, 2021 (not updated in 5 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 2336 Congress Pkwy S

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

  1. Brenda AltmanCounselor1417746314
  2. Brynn Anderson, MSSWSocial Worker1861387995
  3. Rebecca BurgessCounselor1578374260
  4. Kalyn Carr, MSWSocial Worker1033002308
  5. Lacy ChuppCounselor1295606960
  6. Myrlene Compere, M.ED.Counselor1396070322

Verify David Clifton Duff in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Tennessee board licenses this professionCheck 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
Find the Tennessee license search

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17 case manager/care coordinator records list a practice address in Athens

They are 17 of the 445 NPPES records with a practice address in Athens, and 3,451 case manager/care coordinator records in Tennessee. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other case manager/care coordinator records in Tennessee

  1. Autumn AaronKnoxville, TN1053102814
  2. Briana AbelTullahoma, TN1720439060
  3. Casey Abernethy, BSKingsport, TN1700012150
  4. Jennifer Abraham, BSJohnson City, TN1306078217
  5. Stephanie AbshireKnoxville, TN1497004030
  6. Bobby AcreeChattanooga, TN1376464081
  7. Raven AdairMemphis, TN1205661030
  8. Alexandra AdamesChattanooga, TN1285229401
  9. Cheyenne Adams, B.S.Estill Springs, TN1629602792
  10. Kristen AdamsChattanooga, TN1790975084

Common questions

What is David Clifton Duff's NPI number?

David Clifton Duff's National Provider Identifier (NPI) is 1629748595, issued on Sep 14, 2021. An NPI identifies a provider in billing; it is not a license.

Where is David Clifton Duff located?

The NPPES record lists a practice address at 2336 Congress Pkwy S, Athens, TN, 37303. Phone: (423) 266-6751. Providers update this record themselves, so call before visiting.

How can I verify David Clifton Duff's license?

Search the Tennessee board that licenses this profession; the NPPES record confirms identity 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. 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.