Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Eric S Casillas, OD

Individual provider Optometrist · NPI 1649269697

Dr. Eric S Casillas, OD is an Optometry in San Antonio, Texas. Qualified in 1989, 37 years ago. Practices with Med Southwest PLLC, a 226-clinician group and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
37
Licensed in
TX
In the registry since
2005
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

1327 SW Military Dr
San Antonio, TX 78221-1538
Phone: (210) 924-5121
Fax: (210) 923-5656
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Optometrist (primary) Taxonomy 152W00000X · Licence 4066TG (TX)

Record details

NPI number1649269697
Entity typeIndividual (Type 1)
GenderMale
Credentials OD
Sole proprietorYes
NPI enumeratedOctober 20, 2005
Last updated in NPPESDecember 26, 2013
Mailing address1327 Sw Military Dr, San Antonio, TX 78221-1538

Medicare enrollment

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

Medicare specialtyOPTOMETRY
Medical schoolOTHER
Graduated 1989 (37 years in practice)
Group practice Med Southwest Pllc — 226 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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