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ALISON STACK
NPI 1316895097
Speech-Language Pathologist in Southbury, CT

Active since March 19, 2026
519 HERITAGE RD, SOUTHBURY, CT 06488(203) 568-5923 Get Directions Write a Review

NPPES record last updated: March 19, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Alison Stack NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ALISON STACK (NPI 1316895097) is an individual speech-language pathologist provider in Southbury, Connecticut, licensed in Connecticut (6210) and active in the NPI registry since March 2026. She is a graduate of Other (2019).

NPPES Registry Identity

NPI1316895097
Entity TypeIndividualFemale
Primary Taxonomy235Z00000X
Provider Legal NameALISON STACK
Location Address519 HERITAGE RDSouthbury, CT 06488-1699
Mailing Address127 Watertown RdMiddlebury, CT 06762-1502
Phone(203) 568-5923
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateMarch 19, 2026
NPPES CertifiedMarch 18, 2026
✔ NPI 1316895097 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpeech-Language PathologistSpeech, Language and Hearing Service Providers
Taxonomy Code235Z00000X
License✔ Licensed in CT · 6210
Definition
The speech-language pathologist is the professional who engages in clinical services, prevention, advocacy, education, administration, and research in the areas of communication and swallowing across the life span from infancy through geriatrics. Speech-language pathologists address typical and atypical impairments and disorders related to communication and swallowing in the areas of speech sound production, resonance, voice, fluency, language (comprehension and expression), cognition, and feeding and swallowing.
519 HERITAGE RD, Southbury, CT 06488
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Other Names 1

Former Name (1)Alison Malcolm

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Alison Stack is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID7618443409
PECOS Enrollment IDI20260420000798

Medicare Billing Reassignment

Medicare enrollment records show Alison Stack reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Southbury Adolescent And Young Adult Counseling Center
Same address
Mental Health
519 HERITAGE RD STE 2A5
Southbury, CT 06488
  • Reassigned Medicare billing, Connecticut enrollment
  • 24 clinicians in this Medicare group
NPI 1235737735 (203) 568-5923

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MRS. ELIZABETH A SNYDER LMFT
Marriage & Family Therapist
519 HERITAGE RD, SUITE 2F
SOUTHBURY, CT 06488
Naugatuck Valley Planning Region (203) 910-7966
MS. FLOREN SCHERTZER LCSW
Social Worker (Clinical)
519 HERITAGE RD, STE 1H
SOUTHBURY, CT 06488
Naugatuck Valley Planning Region (203) 923-5078

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Alison Stack's NPI number?

The NPI number for Alison Stack is 1316895097. It was assigned to this individual provider in the NPPES registry on March 19, 2026. The provider is also known as Alison Malcolm.

Where is Alison Stack located?

Alison Stack practices at 519 Heritage Rd, Southbury, CT 06488. The listed phone number is (203) 568-5923.

What is Alison Stack's specialty?

The primary specialty registered for this NPI is Speech-Language Pathologist with taxonomy code 235Z00000X.

Is Alison Stack enrolled in Medicare?

Yes. Alison Stack is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Alison Stack's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alison Stack reassigns Medicare benefits to Southbury Adolescent And Young Adult Counseling Center (Southbury, CT). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Alison Stack's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Alison Stack accept?

Health plans from Anthem Blue Cross and Blue Shield list Alison Stack as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Alison Stack was last updated on March 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.