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

Toby Loewenstein, MS

Individual provider Speech-Language Pathologist · NPI 1891434767

Toby Loewenstein, MS is a Speech-Language Pathologist in Waltham, Massachusetts. Registered with an NPI since 2022.

In the registry since
2022
What do these letters mean?
MS — Master of Science
A graduate science degree.

See every abbreviation used in this directory →

Practice location Address checks out

9 Hope Ave
Waltham, MA 02453-2741
Phone: (781) 216-2235
Show map & directions

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

Specialties & licences

Speech-Language Pathologist (primary) Taxonomy 235Z00000X

Record details

NPI number1891434767
Entity typeIndividual (Type 1)
GenderFemale
Credentials MS
Sole proprietorNo
NPI enumeratedMay 31, 2022
Last updated in NPPESMay 31, 2022
Certification dateMay 31, 2022
Mailing address9 Hope Ave, Waltham, MA 02453-2741

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