William Knox Austin, M.D.
Otolaryngology Physician · McComb, MS
William Knox Austin, M.D. is an otolaryngology physician with a practice address in McComb, Mississippi, and NPI 1457443897, issued on Sep 29, 2006. Check the license (Mississippi 05952, as entered in NPPES) on the Mississippi State Board of Medical Licensure; the Medicare figures below come from public CMS files.
- Name
- William Knox Austin
- Credential
- M.D.
- Primary taxonomy
- Otolaryngology Physician 207Y00000X
- License number
- 05952 MS
Self-reported in NPPES; status is on the state search - Practice location
- 405 Marion Avenue, McComb, MS 39648
- Phone
- (601) 684-1250
- Enumerated
- Sep 29, 2006
- Record last updated
- Mar 5, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (601) 684-0129
- Medicaid ID
- 0118139 MS
- Medicare enrollment
- Enrolled (PECOS I20120105000291); accepts Medicare assignment
- Medical or professional school
- University Of Mississippi School Of Medicine, 1970
- Entity
- Type 1 · individual
8 nearest otolaryngology physician records → All 93 in Mississippi → Look up another NPI →
Verify William Knox Austin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMississippi State Board of Medical Licensure
Search for license 05952Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4.6 times the Medicare Part D claims of the average otolaryngology physician in 2024
2,494 Medicare Part D claims for 772 beneficiaries, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 60 claims were for opioids.
Most prescribed
- Methylprednisolone362 claims
- Famotidine159 claims
- Lorazepam136 claims
- Omeprazole122 claims
- Meclizine Hcl120 claims
- Fluticasone Propionate114 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): 0 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).
Bills Medicare through one group practice
- Southwest Mississippi Ear Nose And Throat Clinic PAMcComb, MS
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Knox Austin among 93 otolaryngology physician records in Mississippi
William Knox Austin, M.D. is one of 93 otolaryngology physician records with a practice address in Mississippi. 74% 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 2% of them.
- NPI issued2006 · 2% of these records are older, 57% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated1970 · median 2005 among the 57 with a school on file
- Record last updated2012 · 65% 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 Mississippi practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Otolaryngology Physician providers in Mississippi
There are 93 otolaryngology physician records in Mississippi.
All 93 in Mississippi → Every provider in McComb → Otolaryngology Physician nationwide →
The 8 otolaryngology physician records with the nearest ZIP codes
- Lawrence Stewart, M.D.McComb, MS 396481447337936
- Ryan Case, MDBrookhaven, MS 396011891992061
- Savannah Stockton, MDBrookhaven, MS 396011639795529
- Joseph Boggess, M.D.Columbus, MS 397051740380278
- Robert Borden, M.D.Columbus, MS 397051710026034
- Walter Cosby, M.D.Columbus, MS 397051518067040
- Justin Garner, M.D.Columbus, MS 397051104952225
- Steven Smith, MDColumbus, MS 397051376804369
Common questions
What is William Knox Austin, M.D.'s NPI number?
William Knox Austin, M.D.'s National Provider Identifier (NPI) is 1457443897, issued on Sep 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Knox Austin, M.D. located?
The NPPES record lists a practice address at 405 Marion Avenue, McComb, MS, 39648. Phone: (601) 684-1250. Providers update this record themselves, so call before visiting.
How can I verify William Knox Austin, M.D.'s license?
NPPES lists Mississippi license number 05952, as entered by the provider. Search the Mississippi State Board of Medical Licensure at https://www.msbml.ms.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William Knox Austin, M.D. prescribe under Medicare Part D?
In 2024, William Knox Austin, M.D. had 2,494 Medicare Part D claims for 772 beneficiaries; the average among otolaryngology physician prescribers was 541. Part D covers Medicare prescriptions only.
What is William Knox Austin, M.D.'s MIPS final score?
The 2023 MIPS final score is 0 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.