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

Margaret Sullivan Mcdonald, DNP, APRN, PMHNP-BC

Psychiatric/Mental Health Nurse Practitioner in Milford, CT · enumerated 2021.

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

National Provider Identifier

1861066730

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Registry record

Entity type Individual (Type 1)

Name Margaret Sullivan Mcdonald

Credential DNP, APRN, PMHNP-BC

Sex Female

Practice address Milford, CT, 06461

Phone (203) 307-3030

Fax (203) 208-6771

Enumeration date May 16, 2021

Last updated in NPPES Jul 24, 2025

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 12216 (CT) Primary

DNP · Doctor of Nursing Practice: A clinical doctorate for advanced practice nurses. About the DNP 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

How do I verify Margaret Mcdonald's NPI record?

Cross-check NPI 1861066730 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1861066730 active?

Yes, as of the latest NPPES snapshot, NPI 1861066730 is active (record last updated 2025-07-24).

Other providers at this practice address

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Amy Roberts Psychiatric/Mental Health Nurse Practitioner · Milford, CT NPI 1497094866 Haley Parent Ehlers Professional Counselor · Milford, CT NPI 1568931871 Skylar Shandrowski Mental Health Counselor · Milford, CT NPI 1356162127 Kimberly Joy Clinical Social Worker · Milford, CT NPI 1093537722 Lauren Leavey Mental Health Counselor · Milford, CT NPI 1548082803 Alexandra Favret Social Worker · Milford, CT NPI 1235951591 Kylie Pappas Social Worker · Milford, CT NPI 1669294799 Benjamin Griffiths Marriage & Family Therapist · Milford, CT NPI 1306660360

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-07-24.