NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Helen Macgregor, APRN

Nurse Practitioner in Danbury, CT · enumerated 2015 · practices at Fci Danbury.

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

National Provider Identifier

1528436128

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Registry record

Entity type Individual (Type 1)
Name Ms. Helen Macgregor
Credential APRN
Sex Female
Practice address 33 1/2 Pembroke Rd, Danbury, CT, 06811
Phone (203) 312-5350
Enumeration date Sep 13, 2015
Last updated in NPPES Sep 13, 2015

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License MAC104393184 (CT) Primary
APRN · Advanced Practice Registered Nurse: An umbrella credential covering NPs, CRNAs, CNMs, and clinical nurse specialists. About the APRN 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Helen Macgregor?
Helen Macgregor is registered in NPPES with the primary taxonomy of Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-09-13.