NPI age
18 years
Enumerated 2007-11-09
● Active
Type 1 · Individual
DR. Calvin L Day JR., M.D.
Day is 1 of 13 dermatology providers in San Antonio and 1 of 167 in Texas.
Primary specialty
Dermatology
Plus 1 subspecialty
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2023-08-25
Source: monthly bulk 2026-05
Sole proprietor
Yes
Solo practice on file
How this provider compares
Across 167 active dermatology providers in Texas.
NPI age
18 years
≈ at median (17 yr)
State licenses
1 state
13% of peers hold multiple states
Subspecialties
1
In the 56% of peers with subspecialties
NPI lifetime · 2007 → 2026
2007-11Enumerated in NPPES
2007
2026
Where they practice
Practice location
7979 Broadway Ste 202
San Antonio, TX 782092657
Mailing address
7979 Broadway Ste 202
San Antonio, TX 782092657
Specialties
-
Dermatology PrimaryThe highly-trained surgeons that perform Mohs Micrographic Surgery are specialists both in dermatology and pathology. With their extensive knowledge of the skin and unique pathological skills, they are able to remove only diseased...
-
DermatologyProcedural Dermatology, a subspecialty of Dermatology, encompassing a wide variety of surgical procedures and methods to remove or modify skin tissue for health or cosmetic benefit. These methods include scalpel surgery, laser surgery,...
Identifiers
| Type | Value | Notes |
|---|---|---|
| 01 (TX) | 45D2258975 | CLIA |
Practice context
Part of a multi-provider practice. 1 other active provider shares this practice address in NPPES.
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