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

Mallory M Williston, BA

Individual provider Professional Counselor · NPI 1598461378

Mallory M Williston, BA is a Professional Counselor in Pawcatuck, Connecticut. Practices as a sole proprietor. Registered with an NPI since 2023.

In the registry since
2023
What do these letters mean?
BA — Bachelor of Arts
An undergraduate arts degree.

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Practice location Address checks out

38 S Broad St
Pawcatuck, CT 06379-3966
Phone: (860) 437-4550
Fax: (860) 661-4262
Show map & directions

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

Specialties & licences

Professional Counselor (primary) Taxonomy 101YP2500X

Record details

NPI number1598461378
Entity typeIndividual (Type 1)
GenderFemale
Credentials BA
Sole proprietorYes
NPI enumeratedFebruary 3, 2023
Last updated in NPPESFebruary 3, 2023
Certification dateFebruary 3, 2023
Mailing addressPo Box 120, New London, CT 06320-0120

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