Gail Williamson, O.D.
Optometrist · Corpus Christi, TX
Gail Williamson, O.D. is an optometrist with a practice address in Corpus Christi, Texas, and NPI 1730512385, issued on Aug 19, 2013. Check the license (Texas 5415TG, as entered in NPPES) with the Texas board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gail Williamson
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 5415TG TX
Self-reported in NPPES; status is on the state search - Practice location
- 5638 Saratoga Blvd Ste 106, Corpus Christi, TX 78414
- Phone
- (361) 980-0523
- Enumerated
- Aug 19, 2013
- Record last updated
- Aug 19, 2013 (not updated in 13 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20140206000615); accepts Medicare assignment
- Medical or professional school
- University Of Houston - College Of Optometry, 1997
- Entity
- Type 1 · individual
8 nearest optometrist records → All 5,006 in Texas → Look up another NPI →
Verify Gail Williamson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Texas board licenses this profession
Search for license 5415TGCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
92% fewer Medicare Part D claims than the average optometrist in 2024
23 Medicare Part D claims for 14 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 74% of claims.
Most prescribed
- Restasis12 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: $391.93
6 payments; by number, the most common kind was food and beverage; the largest payer was RxSight Inc. 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
- Heriberto D Ramos OD PACorpus Christi, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gail Williamson among 5,006 optometrist records in Texas
Gail Williamson, O.D. is one of 5,006 optometrist records with a practice address in Texas. 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 2013, is newer than 59% of them.
- NPI issued2013 · 59% of these records are older, 38% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 58% of these records are
- Graduated1997 · median 2010 among the 2,894 with a school on file
- Record last updated2013 · 59% 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 Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Optometrist providers in Texas
There are 5,006 optometrist records in Texas.
All 5,006 in Texas → Every provider in Corpus Christi → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Mary Alsup, O.D.Corpus Christi, TX 784141558700161
- Whitney Cansler, O.D.Corpus Christi, TX 784141427463744
- Kentaro Kikuchi, O.D.Corpus Christi, TX 784141578571683
- Diane Nhan, O.D.Corpus Christi, TX 784141790712149
- Kelly Tran, ODCorpus Christi, TX 784141326610569
- Kevin Voigt, O.D.Corpus Christi, TX 784141437509700
- James Busby, O.D.Corpus Christi, TX 784131588784367
- Gerardo Clark, OPTICIANCorpus Christi, TX 784151891056032
Common questions
What is Gail Williamson, O.D.'s NPI number?
Gail Williamson, O.D.'s National Provider Identifier (NPI) is 1730512385, issued on Aug 19, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Gail Williamson, O.D. located?
The NPPES record lists a practice address at 5638 Saratoga Blvd Ste 106, Corpus Christi, TX, 78414. Phone: (361) 980-0523. Providers update this record themselves, so call before visiting.
How can I verify Gail Williamson, O.D.'s license?
NPPES lists Texas license number 5415TG, as entered by the provider. Search the Texas board that licenses this profession; the NPPES record confirms identity only.
How much does Gail Williamson, O.D. prescribe under Medicare Part D?
In 2024, Gail Williamson, O.D. had 23 Medicare Part D claims for 14 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.