Tommy S. Louthan, OD
Optometrist · Knoxville, TN
Tommy S. Louthan, OD is an optometrist with a practice address in Knoxville, Tennessee, and NPI 1548240906, issued on Jan 20, 2006. Check the license (Tennessee 1575, as entered in NPPES) with the Tennessee board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Tommy S. Louthan
- Credential
- OD
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 1575 TN
Self-reported in NPPES; status is on the state search - Practice location
- 4626 Mill Branch LN, Knoxville, TN 37938
- Phone
- (865) 922-7765
- Enumerated
- Jan 20, 2006
- Record last updated
- Dec 27, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (865) 922-7766
- Medicare enrollment
- Enrolled (PECOS I20080311000346); accepts Medicare assignment
- Medical or professional school
- Southern College Of Optometry, 1994
- Entity
- Type 1 · individual
8 nearest optometrist records → All 1,300 in Tennessee → Look up another NPI →
Also registered at 4626 Mill Branch LN
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kamden Badger, ODOptometrist1477292563
- Adam Reach, O.D.Optometrist1225383003
Verify Tommy S. Louthan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Tennessee board licenses this profession
Search for license 1575Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
67% more Medicare Part D claims than the average optometrist in 2024
462 Medicare Part D claims for 197 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 25% of claims.
Most prescribed
- Latanoprost82 claims
- Azelastine Hcl57 claims
- Neomycin-Polymyxin-Dexameth39 claims
- Timolol Maleate39 claims
- Tobramycin-Dexamethasone27 claims
- Fluorometholone26 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: $20.71
1 payment: food and beverage; the largest payer was Alcon Vision LLC. The 34,453 providers of this specialty with any payment received $769.99 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.
Bills Medicare through one group practice
- Halls Vision Clinic, Inc.Knoxville, TN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Tommy S. Louthan among 1,300 optometrist records in Tennessee
Tommy S. Louthan, OD is one of 1,300 optometrist records with a practice address in Tennessee. 77% 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 13% of them.
- NPI issued2006 · 13% of these records are older, 59% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated1994 · median 2008 among the 839 with a school on file
- Record last updated2016 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Optometrist providers in Tennessee
There are 1,300 optometrist records in Tennessee.
All 1,300 in Tennessee → Every provider in Knoxville → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Kamden Badger, ODKnoxville, TN 379381477292563
- Timothy Hopper, O.D.Knoxville, TN 379381376763771
- Mary Marston, ODKnoxville, TN 379381073677001
- Adam Reach, O.D.Knoxville, TN 379381225383003
- Jonathan Allee, ODKnoxville, TN 379341184117178
- Harrison Amburn, ODKnoxville, TN 379341134604382
- Thomas Bandy, O.D.Knoxville, TN 379341467557751
- Theresa Best, ODKnoxville, TN 379341871657965
Common questions
What is Tommy S. Louthan, OD's NPI number?
Tommy S. Louthan, OD's National Provider Identifier (NPI) is 1548240906, issued on Jan 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Tommy S. Louthan, OD located?
The NPPES record lists a practice address at 4626 Mill Branch LN, Knoxville, TN, 37938. Phone: (865) 922-7765. Providers update this record themselves, so call before visiting.
How can I verify Tommy S. Louthan, OD's license?
NPPES lists Tennessee license number 1575, as entered by the provider. Search the Tennessee board that licenses this profession; the NPPES record confirms identity only.
How much does Tommy S. Louthan, OD prescribe under Medicare Part D?
In 2024, Tommy S. Louthan, OD had 462 Medicare Part D claims for 197 beneficiaries; the average among optometrist prescribers was 277. 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.