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

MS. Sandra Barnes Castle, MED

Individual provider Audiologist · NPI 1891849717

MS. Sandra Barnes Castle, MED is an Audiologist in Frederick, Maryland. Licensed in Maryland. Registered with an NPI since 2007.

Licensed in
MD
In the registry since
2007
What do these letters mean?
MED — Master of Education
A graduate education degree, written M.Ed.

See every abbreviation used in this directory →

Practice location Address checks out

801 Toll House Ave Unit D3
Frederick, MD 21701-4564
Phone: (301) 846-0222
Fax: (301) 846-7707
Show map & directions

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

Specialties & licences

Audiologist (primary) Taxonomy 231H00000X · Licence 123 (MD)

Record details

NPI number1891849717
Entity typeIndividual (Type 1)
GenderFemale
Credentials MED
Sole proprietorNo
NPI enumeratedJanuary 22, 2007
Last updated in NPPESFebruary 18, 2008

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