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MRS. ALLISON MARY GIGUERE M.S. R.D. L.D.N.
NPI 1306186663
Dietitian, Registered in Old Saybrook, CT

Active since February 25, 2013
633 MIDDLESEX TPKE, OLD SAYBROOK, CT 06475(860) 388-8300 Get Directions Write a Review

NPPES record last updated: August 25, 2021. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Aug 25, 2021, Feb 20, 2019 (2 updates tracked since 2019).

About Mrs. Allison Mary Giguere M.s. R.d. L.d.n. NPPES

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

MRS. ALLISON MARY GIGUERE M.S. R.D. L.D.N. (NPI 1306186663) is an individual dietitian, registered in Old Saybrook, Connecticut, licensed in Connecticut (001149) and active in the NPI registry since February 2013. She maintains a secondary practice location in Clinton.

NPPES Registry Identity

NPI1306186663
Entity TypeIndividualFemale
Primary Taxonomy133V00000X
Provider Legal NameMRS. ALLISON MARY GIGUERECredential: M.S. R.D. L.D.N.
Location Address633 MIDDLESEX TPKEOld Saybrook, CT 06475-1220
Mailing Address633 Middlesex TpkeOld Saybrook, CT 06475-1220 · (860) 388-8300
Phone(860) 388-8300
Sole ProprietorYes
Enumeration DateFebruary 25, 2013
Last NPPES UpdateAugust 25, 20212 updates tracked since enumeration
NPPES CertifiedAugust 24, 2021
✔ NPI 1306186663 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyDietitian, RegisteredDietary & Nutritional Service Providers
Taxonomy Code133V00000X
License✔ Licensed in CT · 001149
Definition
A Registered Dietitian (RD)/Registered Dietitian Nutritionist (RDN) is an individual uniquely trained in the science of nutrition and practice of dietetics to design and provide medical nutrition therapy (MNT) and other evidence-based applications of the Nutrition Care Process (NCP) that exemplify the profession's systematic approach to providing high quality nutrition care. Registered dietitians provide MNT for the purpose of disease prevention or management, or to treat or rehabilitate an illness, injury, or condition, with the use of specific, indicated physical and cognitive nutrition care services comprised of one or more of the following aspects of the NCP: nutrition assessment/reassessment, nutrition diagnosis, nutrition intervention (e.g., nutrition counseling, therapeutic diet ordering, and nutrition education) and nutrition monitoring and evaluation.
633 MIDDLESEX TPKE, Old Saybrook, CT 06475
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Other Names 1

Former Name (1)Mrs. Allison Mary Dilzer Ms, Rd-n, Cdn, Csowm

Secondary Practice Location 1

Location 123 Menunketesuck DrClinton, CT 06413-1821 · Phone (518) 524-4067

Other Identifiers 1

Medicaid1306186663MA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mrs. Allison Mary Giguere M.s. R.d. L.d.n. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Billing Reassignments

2

Medicare enrollment records show Allison Giguere reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Yale New Haven Hospital
29 mi
General Acute Care Hospital
20 YORK ST
New Haven, CT 06504
  • Reassigned Medicare billing, Connecticut enrollment
  • 130 clinicians in this Medicare group
NPI 1336139500 (203) 688-2046
Bsh Health PA
93 mi
Dietitian, Registered
19 W 24TH ST FL 4
New York, NY 10010
  • Reassigned Medicare billing, Connecticut enrollment
  • 8 clinicians in this Medicare group
NPI 1679303465 (646) 389-5066

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 8

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

DOUGLAS DUFORE PHD
Psychologist (Clinical)
633 MIDDLESEX TPKE, SUITE 110
OLD SAYBROOK, CT 06475
Lower Connecticut River Valley Planning Region (860) 510-0225
CHRISTINA JOERG
Physical Therapist
633 MIDDLESEX TPKE
OLD SAYBROOK, CT 06475
Lower Connecticut River Valley Planning Region (860) 388-8300
CHAD PORTERFIELD
Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)
633 MIDDLESEX TPKE
OLD SAYBROOK, CT 06475
Lower Connecticut River Valley Planning Region (860) 388-8348
DR. CHARLES A. ODONKOR M.D.
Physical Medicine & Rehabilitation
633 MIDDLESEX TPKE
OLD SAYBROOK, CT 06475
Lower Connecticut River Valley Planning Region (877) 925-3637
KATHRYN A LEINDECKER OT
Occupational Therapist
633 MIDDLESEX TPKE
OLD SAYBROOK, CT 06475
Lower Connecticut River Valley Planning Region (860) 388-8300
MEDICAL CENTER PHARMACY AND HOME CARE CENTER, INC.
Pharmacy (Community/Retail Pharmacy)
633 MIDDLESEX TPKE
OLD SAYBROOK, CT 06475
Lower Connecticut River Valley Planning Region (860) 388-8454
JOHN H FIDLER III DPT
Physical Therapist (Pediatrics)
633 MIDDLESEX TPKE
OLD SAYBROOK, CT 06475
Lower Connecticut River Valley Planning Region (203) 688-6993
RASIKA M MOHAN CCC-SLP
Speech-Language Pathologist
633 MIDDLESEX TPKE
OLD SAYBROOK, CT 06475
Lower Connecticut River Valley Planning Region (860) 388-8300

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 Allison Giguere's NPI number?

The NPI number for Allison Giguere is 1306186663. It was assigned to this individual provider in the NPPES registry on February 25, 2013. The provider is also known as Mrs. Allison Mary Dilzer Ms, Rd-N, Cdn, Csowm.

Where is Allison Giguere located?

Allison Giguere practices at 633 Middlesex Tpke, Old Saybrook, CT 06475. The listed phone number is (860) 388-8300.

What is Allison Giguere's specialty?

The primary specialty registered for this NPI is Dietitian, Registered with taxonomy code 133V00000X.

Is Allison Giguere enrolled in Medicare?

Yes. Allison Giguere is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Allison Giguere's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Allison Giguere reassigns Medicare benefits to 2 organizations: Yale New Haven Hospital (New Haven, CT) and Bsh Health PA (New York, NY). Each 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 Allison Giguere's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Allison Giguere was last updated on August 25, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years 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.