William S. Lenihan, DDS
General Practice Dentistry · Oak Ridge, TN
William S. Lenihan, DDS is a general practice dentistry with a practice address in Oak Ridge, Tennessee, and NPI 1043227341, issued on Aug 1, 2006. Check the license (Tennessee DS 003154, as entered in NPPES) with the Tennessee board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William S. Lenihan
- Credential
- DDS
- Primary taxonomy
- General Practice Dentistry 1223G0001X
- License number
- DS 003154 TN
Self-reported in NPPES; status is on the state search - Practice location
- 400 Laboratory RD, Oak Ridge, TN 37830
- Phone
- (865) 482-1731
- Enumerated
- Aug 1, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Also registered at 400 Laboratory RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Richard Hall, DDSGeneral Practice Dentistry1932203460
- Dana RustDentist1710392048
- James Ruyl, DDSDentist1518155506
Verify William S. Lenihan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Tennessee board licenses this profession
Search for license DS 003154Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8% more Medicare Part D claims than the average general practice dentistry in 2024
90 Medicare Part D claims for 47 beneficiaries, against an average of 83 among the 70,290 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Amoxicillin41 claims
- Cephalexin18 claims
- Chlorhexidine Gluconate16 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.
Industry payments in 2024: $96.91
3 payments; by number, the most common kind was food and beverage; the largest payer was Zimvie Inc. The 41,669 providers of this specialty with any payment received $597.01 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
15 general practice dentistry records list a practice address in Oak Ridge
They are 15 of the 904 NPPES records with a practice address in Oak Ridge, and 2,023 general practice dentistry records in Tennessee.
All 15 in Oak Ridge → All 2,023 in Tennessee → Every provider in Oak Ridge →
Other general practice dentistry records in Tennessee
- Carley Abbott, DDSNashville, TN1003507922
- Colin Abbott, DDSMemphis, TN1265279822
- Fethi AbdulahiSpringfield, TN1548339617
- Ragaa Abdulmoniem, DDSBristol, TN1114758331
- Fredrick Abernathy, D.D.SPulaski, TN1285623769
- Ammaar Abidi, DDSMemphis, TN1811353337
- Allyson Abrams, DDSNashville, TN1528751153
- Sean Abrams, DDSFranklin, TN1912014523
- David Ackerson, DDSKnoxville, TN1295741718
- Lale Adams, D.D.S.Memphis, TN1073718706
Common questions
What is William S. Lenihan, DDS's NPI number?
William S. Lenihan, DDS's National Provider Identifier (NPI) is 1043227341, issued on Aug 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William S. Lenihan, DDS located?
The NPPES record lists a practice address at 400 Laboratory RD, Oak Ridge, TN, 37830. Phone: (865) 482-1731. Providers update this record themselves, so call before visiting.
How can I verify William S. Lenihan, DDS's license?
NPPES lists Tennessee license number DS 003154, as entered by the provider. Search the Tennessee board that licenses this profession; the NPPES record confirms identity only.
How much does William S. Lenihan, DDS prescribe under Medicare Part D?
In 2024, William S. Lenihan, DDS had 90 Medicare Part D claims for 47 beneficiaries; the average among general practice dentistry prescribers was 83. 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.