Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Lesley A Gustafson, CNM

Advanced Practice Midwife in Waterbury, CT · enumerated 2005.

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

National Provider Identifier

1639163199

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Lesley A Gustafson

Credential CNM

Sex Female

Practice address 140 Grandview Ave, Suite 202, Waterbury, CT, 06708

Phone (203) 755-2344

Fax (203) 573-8166

Enumeration date Sep 9, 2005

Last updated in NPPES Sep 11, 2025

Taxonomy & licenses

367A00000X Advanced Practice Midwife Physician Assistants & Advanced Practice Nursing Providers · License 114 (WV) Secondary

367A00000X Advanced Practice Midwife Physician Assistants & Advanced Practice Nursing Providers · License 57006 (WV) Primary

CNM · Certified Nurse Midwife: An advanced practice nurse specializing in pregnancy, childbirth, and reproductive care. About the CNM credential

Other identifiers

Identifier	Type	State	Issuer
9450001000	Medicaid	WV	-

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

Is NPI 1639163199 active?

Yes, as of the latest NPPES snapshot, NPI 1639163199 is active (record last updated 2025-09-11).

How do I verify Lesley Gustafson's NPI record?

Cross-check NPI 1639163199 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.