Robert A. Williamson, M.D.
Otolaryngology Physician · Austin, TX
Robert A. Williamson, M.D. is an otolaryngology physician with a practice address in Austin, Texas, and NPI 1013929017, issued on Aug 12, 2006. Check the license (Texas M6956, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Robert A. Williamson
- Credential
- M.D.
- Primary taxonomy
- Otolaryngology Physician 207Y00000X
- License number
- M6956 TX
Self-reported in NPPES; status is on the state search - Practice location
- 6811 Austin Center Blvd, Austin, TX 78731
- Phone
- (512) 346-8888
- Enumerated
- Aug 12, 2006
- Record last updated
- Oct 21, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (512) 406-7321
- Medicaid IDs
- 187567612 TX
187567611 TX - Medicare enrollment
- Enrolled (PECOS I20070703000687); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 1995
- Entity
- Type 1 · individual
8 nearest otolaryngology physician records → All 790 in Texas → Look up another NPI →
Also registered at 6811 Austin Center Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jennifer Agulnek, MA, OTR/LOccupational Therapist1124344551
- Anne Boon, MS CCC-SLPSpeech-Language Pathologist1578573986
- Elva Brewster, PTPhysical Therapist1659637981
- Maria Chiejina, M.D.Gastroenterology Physician1609214501
- Jessica Chonis, CGCGenetic Counselor (M.S.)1639444540
- Margaret Garwood, PTPhysical Therapist1902178189
Verify Robert A. Williamson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license M6956Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average otolaryngology physician in 2024
66 Medicare Part D claims for 18 beneficiaries, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D.
Most prescribed
- Ofloxacin15 claims
- Furosemide14 claims
- Meclizine Hcl11 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 practice group's MIPS final score for 2023 (Medicare payment program): 71 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $147.27
2 payments; by number, the most common kind was food and beverage; the largest payer was Smith+Nephew, Inc. 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
- Dell Childrens Medical GroupAustin, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Robert A. Williamson among 790 otolaryngology physician records in Texas
Robert A. Williamson, M.D. is one of 790 otolaryngology physician records with a practice address in Texas. 82% 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 20% of them.
- NPI issued2006 · 20% of these records are older, 48% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated1995 · median 2003 among the 552 with a school on file
- Record last updated2016 · 58% 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 Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Otolaryngology Physician providers in Texas
There are 790 otolaryngology physician records in Texas.
All 790 in Texas → Every provider in Austin → Otolaryngology Physician nationwide →
The 8 otolaryngology physician records with the nearest ZIP codes
- Kent Jones, MDAustin, TX 787311124034491
- Joseph Leary, MDAustin, TX 787311730195082
- Matthew Meigs, MDAustin, TX 787311871524009
- Neil Miller, M.D.Austin, TX 787311740589696
- Christopher Thompson, M.D.Austin, TX 787311548234842
- Esther Cheung-Phillips, M.D.Austin, TX 787301235355637
- Yi-Hsuan Wu, M.D.Austin, TX 787301447413901
- Anna Tomkies, MDAustin, TX 787351407317258
Common questions
What is Robert A. Williamson, M.D.'s NPI number?
Robert A. Williamson, M.D.'s National Provider Identifier (NPI) is 1013929017, issued on Aug 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert A. Williamson, M.D. located?
The NPPES record lists a practice address at 6811 Austin Center Blvd, Austin, TX, 78731. Phone: (512) 346-8888. Providers update this record themselves, so call before visiting.
How can I verify Robert A. Williamson, M.D.'s license?
NPPES lists Texas license number M6956, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Robert A. Williamson, M.D. prescribe under Medicare Part D?
In 2024, Robert A. Williamson, M.D. had 66 Medicare Part D claims for 18 beneficiaries; the average among otolaryngology physician prescribers was 541. Part D covers Medicare prescriptions only.
What is Robert A. Williamson, M.D.'s MIPS final score?
The 2023 MIPS final score is 71 of 100, reported for the practice group. 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.