Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

John Thomas Gill, OD

Individual provider Optometrist · NPI 1912015454

John Thomas Gill, OD is registered under Optometry in Corpus Christi, Texas. Graduated from University of Houston - College of Optometry in 1996, 30 years ago. Practices with Walz Vision PA, a 3-clinician group and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
30
Trained at
University of Houston - College of Optometry
Licensed in
TX
In the registry since
2006
What do these letters mean?
OD — Doctor of Optometry
An optometrist: examines eyes, prescribes glasses and contacts, and treats many eye conditions.

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Practice location Address checks out

5425 S Padre Island Dr
Corpus Christi, TX 78411-5301 Not confirmed with CMS for 18 years — call before visiting
Phone: (361) 993-7778
Show map & directions

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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 5245TG (TX)

Record details

NPI number1912015454
Entity typeIndividual (Type 1)
GenderMale
Credentials OD
Sole proprietorNo
NPI enumeratedAugust 25, 2006
Last updated in NPPESNovember 13, 2007

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyOPTOMETRY
Medical schoolUNIVERSITY OF HOUSTON - COLLEGE OF OPTOMETRY
Graduated 1996 (30 years in practice)
Group practice Walz Vision Pa — 3 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Cataract surgery 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients176
Services billed 256 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at Walz Vision PA

Clinicians the CMS Doctors & Clinicians file lists under the same group practice.

Other providers in Corpus Christi