Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jennifer Diane O'Brien, RN, BSN

Community Health Registered Nurse in Annapolis, MD · enumerated 2007.

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

National Provider Identifier

1497878045

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Registry record

Entity type Individual (Type 1)

Name Jennifer Diane O'Brien

Credential RN, BSN

Sex Female

Practice address 3 Harry S Truman Pkwy, Hd22, Annapolis, MD, 21401

Phone (410) 222-7225

Enumeration date Apr 9, 2007

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

163WC1500X Community Health Registered Nurse Nursing Service Providers · License R172350 (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

Where does Jennifer O'Brien practice?

The practice location on file with NPPES is in Annapolis, MD. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Jennifer O'Brien?

The National Provider Identifier (NPI) for Jennifer O'Brien is 1497878045, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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