NPI age
6 years
Enumerated 2019-11-27
● Active
Type 1 · Individual
DR. Mary Preston Darby, PHARMD
Darby is 1 of 96 pharmacist providers in San Angelo and 1 of 18509 in Texas.
Primary specialty
Pharmacist
Plus 3 subspecialties
Licensed in
TX, MI, AK
3 states
Status
Active
No deactivations on record
Last NPPES update
2025-08-07
Source: monthly bulk 2026-05
Sole proprietor
Yes
Solo practice on file
How this provider compares
Across 18509 active pharmacist providers in Texas.
NPI age
6 years
≈ at median (7 yr)
State licenses
3 states
Top 94% — 5% of peers are multi-state
Subspecialties
1
In the 7% of peers with subspecialties
NPI lifetime · 2019 → 2026
2019-11Enumerated in NPPES
2019
2026
Where they practice
Practice location
122 S Oakes St
San Angelo, TX 769036408
Mailing address
3226 Southland Blvd
San Angelo, TX 769047332
Specialties
-
Pharmacist PrimaryAn individual licensed by the appropriate state regulatory agency to engage in the practice of pharmacy. The practice of pharmacy includes, but is not limited to, assessment, interpretation, evaluation, and implementation, initiation,...
-
PharmacistA licensed pharmacist who has demonstrated specialized knowledge and skill in optimizing pharmacotherapeutic care of patients, by developing, implementing, monitoring, and modifying complex treatment plans, providing advanced level...
Practice context
Part of a multi-provider practice. 2 other active providers share this practice address in NPPES.
Recently enumerated nearby: 1 new pharmacist provider has been added in San Angelo in the last 180 days.
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- Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
- Check the state license is currently active.State licensing boards publish current status; NPPES does not.
- Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.