Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Cynthia D L'Heureux, APRN

Family Nurse Practitioner in Groton, CT · enumerated 2006.

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

National Provider Identifier

1033178926

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Registry record

Entity type Individual (Type 1)

Name Mrs. Cynthia D L'Heureux

Credential APRN

Sex Female

Practice address 85 Poheganut Dr, Groton, CT, 06340

Phone (860) 448-6303

Enumeration date Mar 21, 2006

Last updated in NPPES Nov 4, 2011

Taxonomy & licenses

363LG0600X Gerontology Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 001296 (CT) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 001296 (CT) Primary

APRN · Advanced Practice Registered Nurse: An umbrella credential covering NPs, CRNAs, CNMs, and clinical nurse specialists. About the APRN credential

Other identifiers

Identifier	Type	State	Issuer
000	Medicaid	CT	-

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 Cynthia L'Heureux?

Cynthia L'Heureux is registered in NPPES with the primary taxonomy of Family 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.

Other providers at this practice address

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Darren Courtright Podiatrist · Groton, CT NPI 1417937475 Robert Herman Adult Medicine Physician · Groton, CT NPI 1902867351 Patricia Mcivor Family Medicine Physician · Groton, CT NPI 1821102914 Laura Watts Family Medicine Physician · Groton, CT NPI 1326152414 Laura Stapleton Physician Assistant · Groton, CT NPI 1659485753 Jennifer Donahue Family Medicine Physician · Groton, CT NPI 1275647448 Shoreline Foot & Ankle Center, PC Podiatrist · Groton, CT NPI 1780733519 Shoreline Foot & Ankle Center, PC Durable Medical Equipment & Medical Supplies · Groton, CT NPI 1487706008

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-11-04.