NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Brooke Irwin Senior, LGSW

Social Worker in Rockville, MD · enumerated 2018 · practices at Cornerstone Montgomery, Inc..

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

National Provider Identifier

1750871257

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Ms. Brooke Irwin Senior
Credential LGSW
Sex Female
Practice address 2 Taft Ct Ste 200, Rockville, MD, 20850
Phone (301) 715-3673
Enumeration date May 10, 2018
Last updated in NPPES May 10, 2018

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 23682 (MD) Primary

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

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.
What specialty is Brooke Senior?
Brooke Senior is registered in NPPES with the primary taxonomy of Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-05-10.