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

Mrs. Alyssa G Twigg, LCSW, LADC

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1619535457

Mrs. Alyssa G Twigg, LCSW, LADC is a Clinical Social Worker in Shelton, Connecticut. Qualified in 2019, 7 years ago. Practices with Progressive Institute LLC, a 3-clinician group and accepts Medicare assignment. Licensed in Connecticut.

Years since qualifying
7
Licensed in
CT
In the registry since
2019
Specialties on file
2
What do these letters mean?
LCSW — Licensed Clinical Social Worker
A social worker licensed to diagnose and treat mental health conditions independently.
LADC — Licensed Alcohol and Drug Counselor
A licensed addiction counsellor.

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Practice location Address checks out

2 Trap Falls Rd
Shelton, CT 06484-7626
Phone: (203) 816-6424
Show map & directions

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

Specialties & licences

Clinical Social Worker (primary) Taxonomy 1041C0700X · Licence 011919 (CT)
Addiction (Substance Use Disorder) Counselor Taxonomy 101YA0400X · Licence 1349 (CT)

Record details

NPI number1619535457
Entity typeIndividual (Type 1)
GenderFemale
Credentials LCSW , LADC
Sole proprietorNo
NPI enumeratedJune 5, 2019
Last updated in NPPESAugust 8, 2024
Certification dateAugust 8, 2024

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCLINICAL SOCIAL WORKER
Medical schoolOTHER
Graduated 2019 (7 years in practice)
Group practice Progressive Institute Llc — 3 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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