Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Lisa B Stein

Primary Care Nurse Practitioner in Guilford, CT · enumerated 2020.

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

National Provider Identifier

1578161170

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Registry record

Entity type Individual (Type 1)

Name Lisa B Stein

Sex Female

Practice address 350 Goose Ln Ste 203b, Guilford, CT, 06437

Phone (475) 900-9800

Enumeration date Oct 15, 2020

Last updated in NPPES Oct 20, 2021

Taxonomy & licenses

363LP2300X Primary Care Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 9245 (CT) Primary

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

What specialty is Lisa Stein?

Lisa Stein is registered in NPPES with the primary taxonomy of Primary Care Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-10-20.