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

MS. Diane Eileen Johnston, RNFNP

Individual provider Family Nurse Practitioner · NPI 1659532430

MS. Diane Eileen Johnston, RNFNP is a Family Nurse Practitioner in San Marcos, Texas. Licensed in Texas. Registered with an NPI since 2008.

Licensed in
TX
In the registry since
2008

Practice location Address checks out

601 University Dr Student Health Ctr
San Marcos, TX 78666-4684
Phone: (512) 245-2161
Fax: (512) 245-9288
Show map & directions

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

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence 681841 (TX)

Record details

NPI number1659532430
Entity typeIndividual (Type 1)
GenderFemale
Credentials RNFNP
Sole proprietorNo
NPI enumeratedJune 24, 2008
Last updated in NPPESMay 20, 2013
Mailing address601 University Dr, Student Health Center, San Marcos, TX 78666-4684

Other providers in San Marcos