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

Calvin L. Day, Jr , MD, PA

Organization Dermatology Physician · NPI 1861487167

Calvin L. Day, Jr , MD, PA is a Dermatology Physician in San Antonio, Texas. Licensed in Texas. Registered with an NPI since 2005.

Licensed in
TX
In the registry since
2005
What do these letters mean?
PA — Professional association
A form of business registration, not a clinical qualification.

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Practice location Address checks out

7711 Louis Pasteur Dr Ste 104
San Antonio, TX 78229-3411
Phone: (210) 615-8345
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Dermatology Physician (primary) Taxonomy 207N00000X · Licence G1883 (TX)

Record details

NPI number1861487167
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Calvin Day — President · (210) 615-8345
NPI enumeratedSeptember 13, 2005
Last updated in NPPESFebruary 19, 2008
Mailing address7711 Louis Pasteur Dr Suite 104, San Antonio, TX 78229-3411

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