Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Carrie Elizabeth Grassi, NP

Adult Health Nurse Practitioner in Wallingford, CT · enumerated 2011 · practices at Arc in Home Addiction Treatment, P.C..

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1093001646

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Registry record

Entity type Individual (Type 1)

Name Carrie Elizabeth Grassi

Credential NP

Sex Female

Practice address 35 Thorpe Ave Ste 104, Wallingford, CT, 06492

Phone (203) 779-5799

Enumeration date Jun 22, 2011

Last updated in NPPES Oct 9, 2025

Taxonomy & licenses

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 71011618A (IN) Secondary

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 9966 (CT) Secondary

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 0036201 (OH) Secondary

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 060155-23 (NH) Primary

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License APRN11010269 (FL) Secondary

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 4018490 (KY) Secondary

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 0024189566 (VA) Secondary

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License CNP201417 (ME) Secondary

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License GAA-NP002226 (GA) Secondary

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License RN284637 (MA) Secondary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Carrie Grassi's NPI record?

Cross-check NPI 1093001646 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1093001646 active?

Yes, as of the latest NPPES snapshot, NPI 1093001646 is active (record last updated 2025-10-09).

Other providers at this practice address

Browse all →

Arc in Home Addiction Treatment, P.C. Substance Use Disorder Rehabilitation Clinic/Center · Wallingford, CT NPI 1801241880 Delvin Ramirez Clinical Social Worker · Wallingford, CT NPI 1063283752 Lara Novinski Clinical Social Worker · Wallingford, CT NPI 1629882030 Joanna Stachowicz Registered Nurse · Wallingford, CT NPI 1063212140

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-10-09.