Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Margaret M Frittitta, RN, APNP

Psychiatric/Mental Health Nurse Practitioner in Milwaukee, WI · enumerated 2006 · practices at Vivent Health Inc.

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

National Provider Identifier

1225143399

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Registry record

Entity type Individual (Type 1)

Name Ms. Margaret M Frittitta

Credential RN, APNP

Sex Female

Practice address 820 N Plankinton Ave, Milwaukee, WI, 53203

Phone (414) 223-6892

Enumeration date Aug 20, 2006

Last updated in NPPES Aug 29, 2018

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 105002-030 (WI) Secondary

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 1497-033 (WI) Secondary

363LP0808X Psychiatric/Mental Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 1497 (WI) 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.

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Frequently asked questions

Where does Margaret Frittitta practice?

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

What is the NPI number for Margaret Frittitta?

The National Provider Identifier (NPI) for Margaret Frittitta is 1225143399, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-08-29.