Daniel Rudolph Duzan, M.D.
Internal Medicine Physician · Oak Ridge, TN
Daniel Rudolph Duzan, M.D. is an internal medicine physician with a practice address in Oak Ridge, Tennessee, and NPI 1518900091, issued on Jun 13, 2006. Check the license (Tennessee 32247, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Daniel Rudolph Duzan
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 32247 TN
Self-reported in NPPES; status is on the state search - Practice location
- 990 Oak Ridge Tpke, Oak Ridge, TN 37830
- Phone
- (865) 488-1100
- Enumerated
- Jun 13, 2006
- Record last updated
- Nov 30, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid IDs
- 3852304 TN
3852305 TN - Medicare enrollment
- Enrolled (PECOS I20040824001392); accepts Medicare assignment
- Medical or professional school
- Northeastern Ohio University College Of Medicine, 1998
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,596 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.
- Jacob Agner, DOEmergency Medicine Physician1285212100
- Charles Ashley, D.PH.Pharmacist1932136124
- Cindy Ayo, OTD, OTR/LOccupational Therapist1083778757
- Nawras Baban, M.D.Internal Medicine Physician1225075021
- Dell Bailey, CRNACertified Registered Nurse Anesthetist1316197882
- Jeff Baker, D.PH.Pharmacist1851311351
Verify Daniel Rudolph Duzan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTennessee Board of Medical Examiners
Search for license 32247Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through 2 group practices
- Ipc Pac Healthcare Services OF Tennessee PCKnoxville, TN
- NV Pacs 2 LLCSweetwater, TN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Daniel Rudolph Duzan among 2,596 internal medicine physician records in Tennessee
Daniel Rudolph Duzan, M.D. is one of 2,596 internal medicine physician records with a practice address in Tennessee. 80% 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 15% of them.
- NPI issued2006 · 15% of these records are older, 46% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1998 · median 2003 among the 1,705 with a school on file
- Record last updated2007 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
22 internal medicine physician records list a practice address in Oak Ridge
They are 22 of the 904 NPPES records with a practice address in Oak Ridge, and 2,596 internal medicine physician records in Tennessee.
All 2,596 in Tennessee → Every provider in Oak Ridge → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Nawras Baban, M.D.Oak Ridge, TN 378301225075021
- Helen Bidawid, M.D.Oak Ridge, TN 378301114968856
- Arnold Bridges, M.D.Oak Ridge, TN 378301831131887
- Srini Eranki, M.D.Oak Ridge, TN 378301205873007
- Christopher Frost, M.D.Oak Ridge, TN 378301881635928
- James Giles, MDOak Ridge, TN 378301487681466
- Wesley Hayes, M.D.Oak Ridge, TN 378301780603084
- Michael Henderson, MDOak Ridge, TN 378301639125495
Common questions
What is Daniel Rudolph Duzan, M.D.'s NPI number?
Daniel Rudolph Duzan, M.D.'s National Provider Identifier (NPI) is 1518900091, issued on Jun 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Daniel Rudolph Duzan, M.D. located?
The NPPES record lists a practice address at 990 Oak Ridge Tpke, Oak Ridge, TN, 37830. Phone: (865) 488-1100. Providers update this record themselves, so call before visiting.
How can I verify Daniel Rudolph Duzan, M.D.'s license?
NPPES lists Tennessee license number 32247, 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.