Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Michelle Mcdonald, PHD

Clinical Psychologist in Leonardtown, MD · enumerated 2017 · practices at Trillium Psychological Services Pllc.

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

National Provider Identifier

1417494469

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Registry record

Entity type Individual (Type 1)

Name Michelle Mcdonald

Credential PHD

Sex Female

Practice address 40900 Merchants Ln Unit 207, Leonardtown, MD, 20650

Phone (518) 369-5282

Fax (301) 560-4954

Enumeration date Jan 30, 2017

Last updated in NPPES Dec 15, 2025

Taxonomy & licenses

103T00000X Psychologist Behavioral Health & Social Service Providers · License PY9795 (FL) Secondary

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License 07467 (MD) Primary

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

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

Is NPI 1417494469 active?

Yes, as of the latest NPPES snapshot, NPI 1417494469 is active (record last updated 2025-12-15).

How do I verify Michelle Mcdonald's NPI record?

Cross-check NPI 1417494469 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Trillium Psychological Services Pllc Psychologist · Leonardtown, MD NPI 1053201970

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-12-15.