William D. Horton, M.D.
Otolaryngology Physician · Powell, TN
William D. Horton, M.D. is an otolaryngology physician with a practice address in Powell, Tennessee, and NPI 1811071525, issued on Oct 25, 2006. Check the license (Tennessee 18952, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- William D. Horton
- Credential
- M.D.
- Primary taxonomy
- Otolaryngology Physician 207Y00000X
- License number
- 18952 TN
Self-reported in NPPES; status is on the state search - Practice location
- 7557A Dannaher Drive, Powell, TN 37849
- Phone
- (865) 521-8050
- Enumerated
- Oct 25, 2006
- Record last updated
- May 27, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (865) 544-8615
- Medicaid ID
- 3710126 TN
- Medicare enrollment
- Enrolled (PECOS I20110111000143); accepts Medicare assignment
- Medical or professional school
- University Of Tennessee, Hsc, College Of Medicine, 1983
- Entity
- Type 1 · individual
8 nearest otolaryngology physician records → All 199 in Tennessee → Look up another NPI →
Also registered at 7557A Dannaher Drive
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Neil Feld, M.D.Pediatrics Physician1598783300
- Ashley Morrison, FNP-BCFamily Nurse Practitioner1164182838
- Thiveya Sathiyaseelan, MDFamily Medicine Physician1487383931
Verify William D. Horton in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTennessee Board of Medical Examiners
Search for license 18952Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
50% more Medicare Part D claims than the average otolaryngology physician in 2024
811 Medicare Part D claims for 350 beneficiaries, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims. 30 claims were for opioids.
Most prescribed
- Fluticasone Propionate106 claims
- Montelukast Sodium66 claims
- Ipratropium Bromide60 claims
- Azelastine Hcl55 claims
- Amoxicillin-Clavulanate Potass45 claims
- Omeprazole44 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.
The MIPS final score for 2023 (Medicare payment program): 76.7 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $826.99
26 payments; by number, the most common kind was food and beverage; the largest payer was Genzyme Corporation. The 6,429 providers of this specialty with any payment received $1,922.50 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
- Greater Knoxville Ear Nose And Throat Associates PCKnoxville, TN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William D. Horton among 199 otolaryngology physician records in Tennessee
William D. Horton, M.D. is one of 199 otolaryngology physician records with a practice address in Tennessee. 83% 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 17% of them.
- NPI issued2006 · 17% of these records are older, 47% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 74% of these records are
- Graduated1983 · median 2004 among the 147 with a school on file
- Record last updated2014 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Y00000X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
9 otolaryngology physician records list a practice address in Powell
They are 9 of the 467 NPPES records with a practice address in Powell, and 199 otolaryngology physician records in Tennessee.
All 199 in Tennessee → Every provider in Powell → Otolaryngology Physician nationwide →
The 8 otolaryngology physician records with the nearest ZIP codes
- Leslie Baker, M.D.Powell, TN 378491750465001
- Stewart Bernard, MDPowell, TN 378491144607912
- Robert Crawley, M.D.Powell, TN 378491477637718
- Elise Denneny, MDPowell, TN 378491649267089
- Sarah Kortebein, M.D.Powell, TN 378491598298903
- Christopher Rathfoot, M.D.Powell, TN 378491497839757
- Allan Rosenbaum, M.D.Powell, TN 378491528142882
- Ronald Sandberg, M.D.Powell, TN 378491184708455
Common questions
What is William D. Horton, M.D.'s NPI number?
William D. Horton, M.D.'s National Provider Identifier (NPI) is 1811071525, issued on Oct 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William D. Horton, M.D. located?
The NPPES record lists a practice address at 7557A Dannaher Drive, Powell, TN, 37849. Phone: (865) 521-8050. Providers update this record themselves, so call before visiting.
How can I verify William D. Horton, M.D.'s license?
NPPES lists Tennessee license number 18952, 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.
How much does William D. Horton, M.D. prescribe under Medicare Part D?
In 2024, William D. Horton, M.D. had 811 Medicare Part D claims for 350 beneficiaries; the average among otolaryngology physician prescribers was 541. Part D covers Medicare prescriptions only.
What is William D. Horton, M.D.'s MIPS final score?
The 2023 MIPS final score is 76.7 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.