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

Michael Patrick Duffy, DO

Individual provider Optician · NPI 1952716870

Michael Patrick Duffy, DO is an Optician in San Marcos, Texas. Practices as a sole proprietor. Licensed in Texas.

Licensed in
TX
In the registry since
2014
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

121 W San Antonio St
San Marcos, TX 78666-5551
Phone: (512) 982-9242
Fax: (512) 879-9039
Show map & directions

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

Specialties & licences

Optician (primary) Taxonomy 156FX1800X · Licence 189067 (TX)

Record details

NPI number1952716870
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorYes
NPI enumeratedJune 30, 2014
Last updated in NPPESJune 30, 2014
Mailing address121 W San Antonio St, San Marcos, TX 78666-5551

Other providers in San Marcos