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Mallory Williston, BA
NPI 1598461378 · Professional Counselor · Pawcatuck, CT
Mallory Williston, BA is a Professional Counselor provider in Pawcatuck, CT (NPI 1598461378).
Provider details
- NPI number
- 1598461378
- Entity type
- Individual
- Primary specialty
- Professional CounselorBehavioral Health & Social Service Providers
- Credential
- BA
- Sex
- Female
- Sole proprietor
- Yes
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
Established profile(52/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
38 S Broad St
Pawcatuck, CT 06379-3966
Phone: (860) 437-4550
Fax: (860) 661-4262
Street-level locationGet directions
Mailing address
Po Box 120
New London, CT 06320-0120
Registry dates
- Enumerated
- 2023-02-03
- Last updated
- 2023-02-03
- Certified
- 2023-02-03
Frequently asked questions
- What is Mallory Williston's NPI number?
- Mallory Williston's National Provider Identifier (NPI) is 1598461378, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mallory Williston's specialty?
- Mallory Williston is listed in the NPPES registry with a primary specialty of Professional Counselor (Behavioral Health & Social Service Providers).
- Where is Mallory Williston located?
- Mallory Williston's practice location on file with NPPES is 38 S Broad St, Pawcatuck, CT 06379-3966.
- What is Mallory Williston's phone number?
- The practice phone number listed in the NPPES registry for Mallory Williston is (860) 437-4550.
- Is Mallory Williston's NPI active?
- Yes — Mallory Williston's NPI (1598461378) is active in the NPPES registry as of the last update on 2023-02-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.