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

Dr. Donna Yeisley, PHD

Clinical Psychologist in Fairfield, CT · enumerated 2006 · practices at Leslie Marshall LLC.

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

National Provider Identifier

1609956796

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Registry record

Entity type Individual (Type 1)

Name Dr. Donna Yeisley

Credential PHD

Sex Female

Practice address Fairfield, CT, 06825

Phone (203) 362-9556

Fax (203) 372-7596

Enumeration date Oct 16, 2006

Last updated in NPPES Jun 10, 2009

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

Taxonomy & licenses

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 002871 (CT) Primary

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 013314 (NY) Secondary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

Other identifiers

Identifier	Type	State	Issuer
02009929	Medicaid	NY	-

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

How do I verify Donna Yeisley's NPI record?

Cross-check NPI 1609956796 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1609956796 active?

Yes, as of the latest NPPES snapshot, NPI 1609956796 is active (record last updated 2009-06-10).

Other providers at this practice address

Browse all →

Christina Taylor Clinical Psychologist · Fairfield, CT NPI 1376644211 Cary Goodman Clinical Psychologist · Fairfield, CT NPI 1679668875 Amy Payson Psychiatric/Mental Health Nurse Practitioner · Fairfield, CT NPI 1205982030 Mary Jo Vasquez Clinical Psychologist · Fairfield, CT NPI 1467572479 Leslie Marshall LLC Marriage & Family Therapist · Fairfield, CT NPI 1437501178

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-06-10.