Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Ann Louise Keegan, RN

Home Health Registered Nurse in Worcester, MA · enumerated 2015 · practices at Ace Medical Services Inc.

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

National Provider Identifier

1972983153

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Registry record

Entity type Individual (Type 1)

Name Ms. Ann Louise Keegan

Credential RN

Sex Female

Practice address 90 Madison St Ste 600, Worcester, MA, 01608

Phone (508) 792-3800

Fax (508) 792-3803

Enumeration date Jun 3, 2015

Last updated in NPPES Jun 3, 2015

Taxonomy & licenses

163WH0200X Home Health Registered Nurse Nursing Service Providers · License RN136930 (MA) 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 Ann Louise Keegan practice?

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

What is the NPI number for Ann Louise Keegan?

The National Provider Identifier (NPI) for Ann Louise Keegan is 1972983153, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Raphael Bibiu Psychiatric/Mental Health Nurse Practitioner · Worcester, MA NPI 1376004333 Ace Medical Services Inc Home Health Agency · Worcester, MA NPI 1558192393

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-06-03.