NPPES file of Aug 9, 2026

Daniel F. Niendorff, M.D.

Critical Care Medicine (Internal Medicine) Physician · Oak Ridge, TN

Daniel F. Niendorff, M.D. is a critical care medicine (internal medicine) physician with a practice address in Oak Ridge, Tennessee, and NPI 1700968732, issued on Oct 19, 2006. Check the license (Tennessee 49379, as entered in NPPES) on the Tennessee Board of Medical Examiners; 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
1700968732
Name
Daniel F. Niendorff
Credential
M.D.
Primary taxonomy
Critical Care Medicine (Internal Medicine) Physician 207RC0200X
License number
49379 TN
Self-reported in NPPES; status is on the state search
Practice location
990 Oak Ridge Tpke, Oak Ridge, TN 37830
Phone
(865) 835-1000
Enumerated
Oct 19, 2006
Record last updated
Jan 2, 2024
Medicaid ID
Q000561 TN
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.
Download card Updates feed

8 nearest critical care medicine (internal medicine) physician records → All 88 in Tennessee → Look up another NPI →

Also registered at 990 Oak Ridge Tpke

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

  1. Jacob Agner, DOEmergency Medicine Physician1285212100
  2. Charles Ashley, D.PH.Pharmacist1932136124
  3. Cindy Ayo, OTD, OTR/LOccupational Therapist1083778757
  4. Nawras Baban, M.D.Internal Medicine Physician1225075021
  5. Dell Bailey, CRNACertified Registered Nurse Anesthetist1316197882
  6. Jeff Baker, D.PH.Pharmacist1851311351

Verify Daniel F. Niendorff 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 49379    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

Daniel F. Niendorff among 88 critical care medicine (internal medicine) physician records in Tennessee

Daniel F. Niendorff, M.D. is one of 88 critical care medicine (internal medicine) physician records with a practice address in Tennessee. 89% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 17% of them.

  • NPI issued2006 · 17% of these records are older, 57% newer
  • In a Medicare fileNo · 89% of these records are
  • In the CMS Doctors and Clinicians fileNo · 77% of these records are
  • Record last updated2024 · 38% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0200X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Critical Care Medicine (Internal Medicine) Physician providers in Tennessee

There are 88 critical care medicine (internal medicine) physician records in Tennessee. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 88 in Tennessee → Every provider in Oak Ridge → Critical Care Medicine (Internal Medicine) Physician nationwide →

The 8 critical care medicine (internal medicine) physician records with the nearest ZIP codes

  1. Charles Mascioli, M.D.Oak Ridge, TN 378301891731915
  2. Jeffery Nelson, M.D.Maryville, TN 378041285602128
  3. Emma Park, DNPKnoxville, TN 379191225712730
  4. Bruce Ludwig, M.D.Knoxville, TN 379201649250580
  5. Shawnt TosonianKnoxville, TN 379201003304528
  6. Noel Curcio, D.O.Johnson City, TN 376041053322172
  7. Mitchell DeshazerJohnson City, TN 376041023276870
  8. Jorge Diaz, MDJohnson City, TN 376041295222719

Common questions

What is Daniel F. Niendorff, M.D.'s NPI number?

Daniel F. Niendorff, M.D.'s National Provider Identifier (NPI) is 1700968732, issued on Oct 19, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Daniel F. Niendorff, M.D. located?

The NPPES record lists a practice address at 990 Oak Ridge Tpke, Oak Ridge, TN, 37830. Phone: (865) 835-1000. Providers update this record themselves, so call before visiting.

How can I verify Daniel F. Niendorff, M.D.'s license?

NPPES lists Tennessee license number 49379, 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. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.