NPPES file of Aug 9, 2026

Nathaniel Robert Ellens, MD

Neurological Surgery Physician · Knoxville, TN

Nathaniel Robert Ellens, MD is a neurological surgery physician with a practice address in Knoxville, Tennessee, and NPI 1265939524, issued on Apr 12, 2018. Check the license (Tennessee 76528, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1265939524
Name
Nathaniel Robert Ellens
Credential
MD
Primary taxonomy
Neurological Surgery Physician 207T00000X
License number
76528 TN
Self-reported in NPPES; status is on the state search
Practice location
1932 Alcoa Hwy Bldg C, Knoxville, TN 37920
Phone
(616) 581-9320
Enumerated
Apr 12, 2018
Record last updated
Jul 13, 2026
Medicare enrollment
Enrolled (PECOS I20251201001953); accepts Medicare assignment
Medical or professional school
Michigan State University College Of Human Medicine, 2018
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 1932 Alcoa Hwy Bldg C

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

  1. David Shepherd, PA-CSurgical Physician Assistant1790437614

Verify Nathaniel Robert Ellens 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 76528
    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.

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Bills Medicare through one group practice

  1. Lehigh Valley Physician GroupAllentown, PA

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

Nathaniel Robert Ellens among 191 neurological surgery physician records in Tennessee

Nathaniel Robert Ellens, MD is one of 191 neurological surgery physician records with a practice address in Tennessee. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 91% of them.

  • NPI issued2018 · 91% of these records are older, 5% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 73% of these records are
  • Graduated2018 · median 2005 among the 140 with a school on file
  • Record last updated2026 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207T00000X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neurological Surgery Physician providers in Tennessee

There are 191 neurological surgery physician records in Tennessee.

The 8 neurological surgery physician records with the nearest ZIP codes

  1. Todd Abel, MDKnoxville, TN 379201518946615
  2. Megan Breckenkamp, PA-CKnoxville, TN 379201184380784
  3. Jacob Gallaher, PA-CKnoxville, TN 379201063006922
  4. Christopher Gallati, M.D.Knoxville, TN 379201649448713
  5. Carter Gerard, MDKnoxville, TN 379201336450105
  6. James Killeffer, MDKnoxville, TN 379201851333728
  7. Dakota Roysdon, PA-CKnoxville, TN 379201417653304
  8. Kent Sauter, MDKnoxville, TN 379201679510424

Common questions

What is Nathaniel Robert Ellens, MD's NPI number?

Nathaniel Robert Ellens, MD's National Provider Identifier (NPI) is 1265939524, issued on Apr 12, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Nathaniel Robert Ellens, MD located?

The NPPES record lists a practice address at 1932 Alcoa Hwy Bldg C, Knoxville, TN, 37920. Phone: (616) 581-9320. Providers update this record themselves, so call before visiting.

How can I verify Nathaniel Robert Ellens, MD's license?

NPPES lists Tennessee license number 76528, 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.