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

Mary Anne Maclellan, MA, CCC, SLP

Individual provider Speech-Language Pathologist · NPI 1053440479

Mary Anne Maclellan, MA, CCC, SLP is a Speech-Language Pathologist in San Marcos, California. Practices as a sole proprietor. Licensed in California.

Licensed in
CA
In the registry since
2007
What do these letters mean?
MA — Master of Arts
A graduate arts degree.
SLP — Speech-Language Pathologist
Treats speech, language and swallowing disorders.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

1595 Grand Ave Ste 110
San Marcos, CA 92078-2450
Phone: (760) 471-1198
Fax: (760) 471-5657
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Speech-Language Pathologist (primary) Taxonomy 235Z00000X · Licence SP4920 (CA)

Record details

NPI number1053440479
Entity typeIndividual (Type 1)
GenderFemale
Credentials MA , CCC , SLP
Sole proprietorYes
NPI enumeratedMarch 2, 2007
Last updated in NPPESJuly 17, 2007

Other providers in San Marcos