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

Diana Letwinsky, SLP

Individual provider Speech-Language Pathologist · NPI 1659860914

Diana Letwinsky, SLP is a Speech-Language Pathologist in California, Maryland. Licensed in Maryland. Registered with an NPI since 2018.

Licensed in
MD
In the registry since
2018
What do these letters mean?
SLP — Speech-Language Pathologist
Treats speech, language and swallowing disorders.

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Practice location Address checks out

22593 Three Notch Rd
California, MD 20619-3054
Phone: (301) 862-2505
Fax: (301) 862-2548
Show map & directions

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

Specialties & licences

Speech-Language Pathologist (primary) Taxonomy 235Z00000X · Licence 06507 (MD)

Record details

NPI number1659860914
Entity typeIndividual (Type 1)
GenderFemale
Credentials SLP
Sole proprietorNo
NPI enumeratedMay 2, 2018
Last updated in NPPESMay 2, 2018
Mailing address22593 Three Notch Rd, California, MD 20619-3054

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