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

Anita P Obrien, NP

Q: What is the NPI number for Anita Obrien?

The National Provider Identifier (NPI) for Anita Obrien is 1144224684, a Type 1 (individual) record in the CMS NPPES registry.

Pediatric Nurse Practitioner in Milwaukee, WI · enumerated 2005 · practices at Samir Mullick MD Sc.

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

National Provider Identifier

1144224684

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Registry record

Entity type Individual (Type 1)

Name Anita P Obrien

Credential NP

Sex Female

Practice address Milwaukee, WI, 53216

Phone (414) 873-3440

Enumeration date Jun 13, 2005

Last updated in NPPES Oct 17, 2023

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

363LP0200X Pediatric Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 2392 (WI) Primary

NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP credential

Other identifiers

Identifier	Type	State	Issuer
41188300	Medicaid	WI	-

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 is the NPI number for Anita Obrien?

The National Provider Identifier (NPI) for Anita Obrien is 1144224684, a Type 1 (individual) record in the CMS NPPES registry.

Where does Anita Obrien practice?

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

Other providers at this practice address

Browse all →

Samir Mullick MD Sc Pediatrics Physician · Milwaukee, WI NPI 1235182221 Carolyn Schellie Pediatric Nurse Practitioner · Milwaukee, WI NPI 1346293727 Samir Mullick Pediatrics Physician · Milwaukee, WI NPI 1568416220 Edward Muellerleile Pediatrics Physician · Milwaukee, WI NPI 1477694818 Rita Gnyawali Pediatrics Physician · Milwaukee, WI NPI 1568721959

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-10-17.