Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Mary Patricia Gallagher, RN

Lactation Consultant (Registered Nurse) in Derwood, MD · enumerated 2005.

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

National Provider Identifier

1497755938

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Registry record

Entity type Individual (Type 1)

Name Mrs. Mary Patricia Gallagher

Credential RN

Sex Female

Practice address 5712 Rio Vista Dr, Derwood, MD, 20855

Phone (301) 330-0886

Enumeration date Jul 27, 2005

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

163WL0100X Lactation Consultant (Registered Nurse) Nursing Service Providers · License R092261 (MD) Primary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN 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 Mary Gallagher?

Mary Gallagher is registered in NPPES with the primary taxonomy of Lactation Consultant (Registered Nurse). 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.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.