Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ms. Gretha Regina Lewis, NP-C
Nurse Practitioner in Meriden, CT · enumerated 2010.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1720398340
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Ms. Gretha Regina Lewis
Credential NP-C
Sex Female
Practice address 158 Paddock Ave Apt 904, Meriden, CT, 06450
Phone (860) 778-3322
Enumeration date Oct 16, 2010
Last updated in NPPES Oct 22, 2025
Taxonomy & licenses
363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 004516 (CT) Secondary
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 004516 (CT) Primary
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 004516 | Other | CT | LICENSE |
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.
Frequently asked questions
How do I verify Gretha Lewis's NPI record?
Cross-check NPI 1720398340 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1720398340 active?
Yes, as of the latest NPPES snapshot, NPI 1720398340 is active (record last updated 2025-10-22).
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-10-22.