Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Kathleen Mary Kirwin, APRN

Psychiatric/Mental Health Nurse Practitioner in Wallingford, CT · enumerated 2006 · practices at Peaceful Psychiatry, LLC.

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

National Provider Identifier

1598797862

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Registry record

Entity type Individual (Type 1)

Name Kathleen Mary Kirwin

Credential APRN

Sex Female

Practice address Wallingford, CT, 06492

Phone (203) 697-0807

Fax (203) 265-3651

Enumeration date Jul 7, 2006

Last updated in NPPES Jul 11, 2011

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 002756 (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
3248477	Other	CT	AETNA
5600002756CT2	Other	CT	ANTHEM

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.

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Frequently asked questions

How do I verify Kathleen Kirwin's NPI record?

Cross-check NPI 1598797862 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1598797862 active?

Yes, as of the latest NPPES snapshot, NPI 1598797862 is active (record last updated 2011-07-11).

Other providers at this practice address

Browse all →

Denise Fogel Clinical Neuropsychologist · Wallingford, CT NPI 1417976697 Janet Rooney Psychiatric/Mental Health Nurse Practitioner · Wallingford, CT NPI 1336153832 Margaret O'Hagan-Lynch Professional Counselor · Wallingford, CT NPI 1659576502 Maria Silva Clinical Social Worker · Wallingford, CT NPI 1417137761 Sharon Starr Clinical Social Worker · Wallingford, CT NPI 1790931699 Peaceful Psychiatry, LLC Community/Behavioral Health Agency · Wallingford, CT NPI 1912594268

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