NPPES file of Aug 9, 2026

Debra Achenbach Keller, FNP

Nurse Practitioner · Harriman, TN

Debra Achenbach Keller, FNP is a nurse practitioner with a practice address in Harriman, Tennessee, and NPI 1477589646, issued on Jun 22, 2006. Check the license (Tennessee 7614, as entered in NPPES) with the Tennessee board that licenses this profession; 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
1477589646
Name
Debra Achenbach Keller
Credential
FNP
Primary taxonomy
Nurse Practitioner 363L00000X
License number
7614 TN
Self-reported in NPPES; status is on the state search
Practice location
412 Devonia St, Harriman, TN 37748
Phone
(865) 882-4379
Enumerated
Jun 22, 2006
Record last updated
Jun 30, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicaid ID
3648611 TN
Medicare enrollment
Enrolled (PECOS I20050303000270); 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 412 Devonia St

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

  1. Douglas Batchelor, MDEmergency Medicine Physician1477584936
  2. Melissa Benton, PA-CPhysician Assistant1477834604
  3. William Black, MDEmergency Medicine Physician1720019284
  4. Charles Brooks, MDEmergency Medicine Physician1598865958
  5. Patricia Douglas, CRNACertified Registered Nurse Anesthetist1407843519
  6. Robert Dukes, MDEmergency Medicine Physician1831128404

Verify Debra Achenbach Keller in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Tennessee board licenses this profession
    Search for license 7614
    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
Find 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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5.7 times the Medicare Part D claims of the average nurse practitioner in 2024

6,349 Medicare Part D claims for 536 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 170 claims were for opioids.

  1. Debra Keller6,349
  2. Specialty average1,109

Most prescribed

  1. Levothyroxine Sodium313 claims
  2. Atorvastatin Calcium260 claims
  3. Losartan Potassium224 claims
  4. Rosuvastatin Calcium208 claims
  5. Alprazolam200 claims
  6. Omeprazole175 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.

Bills Medicare through one group practice

  1. Covenant Medical Group IncLoudon, TN

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

Debra Achenbach Keller among 2,303 nurse practitioner records in Tennessee

Debra Achenbach Keller, FNP is one of 2,303 nurse practitioner records with a practice address in Tennessee. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 4% of them.

  • NPI issued2006 · 4% of these records are older, 79% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated2004 · median 2017 among the 1,331 with a school on file
  • Record last updated2020 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

4 nurse practitioner records list a practice address in Harriman

They are 4 of the 200 NPPES records with a practice address in Harriman, and 2,303 nurse practitioner records in Tennessee.

The 8 nurse practitioner records with the nearest ZIP codes

  1. Teena Hedrick, NPHarriman, TN 377481366894602
  2. Stephanie Seigler, FNP-CHarriman, TN 377481346813888
  3. Rosella Smalley, MS, APNHarriman, TN 377481427005438
  4. Barbara Bradford, APNGreeneville, TN 377451962487637
  5. Elizabeth Collins, FNPGreeneville, TN 377451457804551
  6. Linda Cox, MSN APRN BCGreeneville, TN 377451730292186
  7. Mary Elwood, FNPGreeneville, TN 377451841383544
  8. Norma Felts, FNPGreeneville, TN 377451649324724

Common questions

What is Debra Achenbach Keller, FNP's NPI number?

Debra Achenbach Keller, FNP's National Provider Identifier (NPI) is 1477589646, issued on Jun 22, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Debra Achenbach Keller, FNP located?

The NPPES record lists a practice address at 412 Devonia St, Harriman, TN, 37748. Phone: (865) 882-4379. Providers update this record themselves, so call before visiting.

How can I verify Debra Achenbach Keller, FNP's license?

NPPES lists Tennessee license number 7614, as entered by the provider. Search the Tennessee board that licenses this profession; the NPPES record confirms identity only.

How much does Debra Achenbach Keller, FNP prescribe under Medicare Part D?

In 2024, Debra Achenbach Keller, FNP had 6,349 Medicare Part D claims for 536 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.